docs: add AGPL-3.0 license

Reviewed-on: #4

closes #3

AGENTS.md

@@ -9,16 +9,18 @@ collections. A small server-rendered web UI (templ + Tailwind + htmx) at
 ## Build, test, lint
 
 ```bash
-make build          # go build -o bin/davserver ./cmd/server
+make build          # go build -o bin/davserver ./cmd/server + ./bin/nidusctl
 make run             # build + ./bin/davserver -config config.yaml
 make test            # go test ./... -v -race
-make lint            # golangci-lint run ./...
+make lint            # golangci-lint run ./... (no config file; uses defaults)
 make tidy            # go mod tidy
-go test ./internal/store/ -run TestStoreRoundTrip -v   # single test
+make web-deps        # install Tailwind CLI + TypeScript (needed once, or after web/package.json changes)
 make templ-generate  # regenerate *_templ.go after editing internal/web/templates/*.templ
-make web-css         # templ-generate + rebuild web/static/app.css (needs `make web-deps` once, Node.js/npm)
+make web-css         # templ-generate + rebuild web/static/app.css
 make web-ts          # compile web/ts/*.ts to web/static/*.js
 make web-assets      # web-css + web-ts (everything under web/static/)
+make nidusctl        # build + run nidusctl with ARGS (e.g. `make nidusctl ARGS="user list"`)
+go run ./tools/migrate -config config.yaml  # restructure data directory
 ```
 
 Test files: `internal/store/store_test.go`, `internal/webdav/handler_test.go`,
@@ -51,14 +53,15 @@ Test files: `internal/store/store_test.go`, `internal/webdav/handler_test.go`,
   if it's nil. `auth.NewContext(ctx, p)` is the test-only inverse, used to
   build authenticated contexts without a real Basic Auth handshake.
 - `internal/store` — the single source of truth for all persisted data.
-  A thin filesystem KV abstraction: `<data_dir>/<user>/<collection>/<objectID>`.
+  A thin filesystem KV abstraction: `<data_dir>/<user>/[calendars|addressbooks|files]/<name>`.
   All collection/object names pass through `sanitize()` (via
   `filepath.Base` + strip `..`) to prevent path traversal — preserve this
   when adding new store methods. Writes use temp-file + rename for atomicity
   (`PutObject`). Locking is sharded per-user (`lockFor(user)`, a
   `map[string]*sync.RWMutex` guarded by its own mutex) rather than one
   global lock, so different users' requests don't serialize against each
-  other.
+  other. `Migrate()` restructures data from the old format (`cal-<name>`,
+  `card-<name>`) to the new unified layout and is idempotent.
 - `internal/caldav` and `internal/carddav` — implement the
   `caldav.Backend`/`carddav.Backend` interfaces from `github.com/emersion/go-webdav`
   on top of `store.Store`. Calendars are stored as collections prefixed
@@ -100,6 +103,12 @@ Test files: `internal/store/store_test.go`, `internal/webdav/handler_test.go`,
   shared data is never copied — it's read/written directly under the
   owner's own `store.Store` namespace, just addressed via the synthetic
   name from the grantee's requests.
+  **ICSSubscriptions**: read-only calendars backed by remote ICS/webcal
+  URLs (see `db.CreateICSSubscription`, `internal/db/ics.go`) are exposed
+  alongside real calendars under `/cal/home/<name>/` (shared namespace;
+  see `internal/caldav/ics.go`). `Birthdays` is a computed calendar
+  synthesized from contacts' BDAY fields (see `internal/caldav/birthdays.go`,
+  `internal/birthdays/birthdays.go`).
 - `internal/db` — a small `database/sql` wrapper around
   `modernc.org/sqlite` (pure Go, no CGO) at `<data_dir>/nidus.db`. Only
   one open connection is used (`SetMaxOpenConns(1)`) since SQLite allows a
@@ -118,6 +127,9 @@ Test files: `internal/store/store_test.go`, `internal/webdav/handler_test.go`,
   cleans those up in a transaction. `modernc.org/sqlite` has no typed
   unique-constraint error, so `isUniqueConstraintErr()` string-matches the
   driver's error message.
+  **Additional tables**: `birthday_calendars` (per-user display color for
+  the computed Birthdays calendar), `ics_subscriptions` (remote ICS/webcal
+  calendar subscriptions), `web_sessions` (server-side session tokens).
 - `internal/webdav` — plain-file WebDAV via `golang.org/x/net/webdav`,
   mounted at the single fixed URL `/files/` for all users (no username in
   the path either). `NewHandler` caches one `*xwebdav.Handler` per
@@ -128,6 +140,10 @@ Test files: `internal/store/store_test.go`, `internal/webdav/handler_test.go`,
 - `tools/hashpwd` — standalone CLI (`go run ./tools/hashpwd <password>`) to
   generate bcrypt hashes for ad-hoc testing (no longer needed for normal
   user setup — see `nidusctl user create` below).
+- `tools/migrate` — restructures data directory from old format (`cal-<name>`,
+  `card-<name>`) to unified layout (`calendars/`, `addressbooks/`,
+  `files/`). Run automatically on server startup; invoke manually with
+  `go run ./tools/migrate -config config.yaml`.
 - `tools/nidusctl` — standalone admin CLI (`go run ./tools/nidusctl
   -config config.yaml <user|calendar|addressbook> ...`) — the only way to
   create/delete users, calendars, and address books, plus manage sharing
@@ -190,6 +206,14 @@ Test files: `internal/store/store_test.go`, `internal/webdav/handler_test.go`,
   no runtime dependency on Node.js or the `web/` directory being present —
   Node/npm are only needed when actually changing templates/styles/TS
   (`make web-assets` rebuilds everything under `web/static/`).
+  **Web UI features**: dashboard (calendars/address books/ICS subscriptions
+  management), login (cookie-based sessions), share management (create/update/
+  revoke share grants via htmx), files browser (inline preview, upload, download),
+  contacts manager (vCard import/export, edit fields), calendar view (month/week,
+  per-calendar colors), account settings (name/email/password). The
+  synthetic `Birthdays` calendar (computed from contacts' BDAY fields) and
+  ICS/webcal subscriptions are managed via the web UI just like real
+  calendars.
 
 ## Conventions
 
@@ -211,3 +235,5 @@ Test files: `internal/store/store_test.go`, `internal/webdav/handler_test.go`,
 - Logging uses `log/slog` structured fields (e.g. `logger.Warn("...", "user", u, "error", err)`), passed down explicitly to every constructor (`NewBackend`, `NewHandler`, `NewMiddleware`) rather than a global logger.
 - Config module path is `github.com/yourusername/caldav-server` (go.mod name
   predates the `nidus` repo rename) — import paths still use this, not `nidus`.
+- **Docker/CI**: Docker image pushed to `git.arnef.de/arnef/nidus` on tags (`v*`) or releases (`.github/workflows/docker-release.yml`), multi-arch (`linux/amd64`, `linux/arm64`). Use `docker-compose` for local dev with healthcheck on `/healthz`.
+- **Database schema** lives in `internal/db/db.go` `migrate()` — all tables are created with `CREATE TABLE IF NOT EXISTS` and schema changes are applied via `ALTER TABLE` in `migrateAddColumns()`. No external migration framework.

Dockerfile

@@ -18,13 +18,16 @@ WORKDIR /app
 COPY --from=builder /bin/davserver /usr/local/bin/davserver
 COPY --from=builder /bin/nidusctl /usr/local/bin/nidusctl
 
-# Default data and config locations
+# Default data location
 VOLUME ["/app/data"]
-# config.yaml itself is git-ignored (it holds real secrets), so the image
-# ships the example config as a working default; mount your own
-# config.yaml over /app/config.yaml (see docker-compose.yaml) to override it.
-COPY config.example.yaml /app/config.yaml
+
+# environment variables (override as needed)
+ENV NIDUS_DATA_DIR=/app/data
+ENV NIDUS_HOST=0.0.0.0
+ENV NIDUS_PORT=8080
+ENV NIDUS_LOG_LEVEL=warn
+ENV NIDUS_LOG_FORMAT=text
 
 EXPOSE 8080
 
-ENTRYPOINT ["davserver", "-config", "/app/config.yaml"]
+ENTRYPOINT ["davserver"]

LICENSE

@@ -0,0 +1,244 @@
+Copyright (C) 2025 arnef
+
+This program is free software licensed under the terms of the
+GNU Affero General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option)
+any later version.
+
+-------------------------------------------------------------
+
+GNU AFFERO GENERAL PUBLIC LICENSE
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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+If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License.  You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
+
+12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License.  If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program.
+
+13. Remote Network Interaction; Use with the GNU General Public License.
+
+Notwithstanding any other provision of this License, if you modify the Program, your modified version must prominently offer all users interacting with it remotely through a computer network (if your version supports such interaction) an opportunity to receive the Corresponding Source of your version by providing access to the Corresponding Source from a network server at no charge, through some standard or customary means of facilitating copying of software.  This Corresponding Source shall include the Corresponding Source for any work covered by version 3 of the GNU General Public License that is incorporated pursuant to the following paragraph.
+
+Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU General Public License into a single combined work, and to convey the resulting work.  The terms of this License will continue to apply to the part which is the covered work, but the work with which it is combined will remain governed by version 3 of the GNU General Public License.
+
+14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of the GNU Affero General Public License from time to time.  Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program specifies that a certain numbered version of the GNU Affero General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation.  If the Program does not specify a version number of the GNU Affero General Public License, you may choose any version ever published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of the GNU Affero General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
+
+Later license versions may give you additional or different permissions.  However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
+
+15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program.  It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.
+
+     <one line to give the program's name and a brief idea of what it does.>
+     Copyright (C) <year>  <name of author>
+
+     This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If your software can interact with users remotely through a computer network, you should also make sure that it provides a way for users to get its source.  For example, if your program is a web application, its interface could display a "Source" link that leads users to an archive of the code.  There are many ways you could offer source, and different solutions will be better for different programs; see section 13 for the specific requirements.
+
+You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU AGPL, see <http://www.gnu.org/licenses/>.

Makefile

@@ -7,7 +7,7 @@ build:
 
 ## run: run the server locally
 run: build
-	./bin/davserver -config config.yaml
+	./bin/davserver
 
 ## test: run all tests
 test:
@@ -37,7 +37,7 @@ hash-password:
 ## nidusctl: build and run the sharing-grant admin CLI
 ## Usage: make nidusctl ARGS="calendar share alice work bob write"
 nidusctl: build
-	./bin/nidusctl -config config.yaml $(ARGS)
+	./bin/nidusctl $(ARGS)
 
 ## templ-generate: regenerate *_templ.go files from internal/web/templates/*.templ
 templ-generate:

README.md

@@ -1,4 +1,4 @@
-# DAV Server
+# nidus
 
 A self-hosted **CalDAV**, **CardDAV**, and **WebDAV** server written in Go.
 
@@ -23,56 +23,61 @@ and files, all kept under your own roof instead of a third-party cloud.
 - **Web UI** — a mobile-friendly app at `/web/` for managing calendars,
   contacts, files, and account settings (see [Web UI](#web-ui) below),
   built with templ + Tailwind + htmx
+- **ICSSubscriptions** — add remote ICS/webcal calendars
+- **Birthdays calendar** — auto-computed from contacts' BDAY fields
 - Auto-discovery via `/.well-known/caldav` and `/.well-known/carddav`
-- Optional **TLS** (or use a reverse proxy)
 - Structured logging (text or JSON)
 - Graceful shutdown
 - Docker & Docker Compose support
 
 ## Quick start
 
-### 1. Install dependencies
-
-```bash
-go mod tidy
-```
-
-### 2. Create your `config.yaml`
-
-Copy the example config and edit it — `config.yaml` is git-ignored so your
-real settings never get committed:
-
-```bash
-cp config.example.yaml config.yaml
-```
-
-Users, calendars, and address books are **no longer configured in
-`config.yaml`** — they live in the SQLite database and are managed with
-`nidusctl` (see below).
-
-### 3. Run the server
+### 1. Run the server
 
 ```bash
 make run
 # or
-go run ./cmd/server -config config.yaml
+go run ./cmd/server
 ```
 
 The server starts at **http://localhost:8080**.
 
-### 4. Create a user and their resources
+### 2. Configure the server via environment variables
+
+The server is configured via environment variables:
 
 ```bash
-go run ./tools/nidusctl -config config.yaml user create alice \
+# Required: Set the data directory
+export NIDUS_DATA_DIR="./data"
+
+# Optional: Set port, host, and base URL
+export NIDUS_PORT="8080"
+export NIDUS_HOST="0.0.0.0"
+export NIDUS_BASE_URL="https://dav.example.com"
+
+# Optional: Set auth realm
+export NIDUS_AUTH_REALM="My DAV Server"
+
+# Optional: Set logging
+export NIDUS_LOG_LEVEL="info"
+export NIDUS_LOG_FORMAT="text"
+```
+
+This server does **not** handle TLS — use a reverse proxy (e.g. Nginx, Caddy,
+Traefik) to terminate TLS and forward requests to the server.
+
+### 3. Create a user and their resources
+
+```bash
+go run ./tools/nidusctl user create alice \
   --display-name "Alice Smith" --email alice@example.com
 # (prompts for a password; use --password to skip the prompt, e.g. in scripts)
 
-go run ./tools/nidusctl -config config.yaml calendar create alice personal
-go run ./tools/nidusctl -config config.yaml addressbook create alice contacts
+go run ./tools/nidusctl calendar create alice personal
+go run ./tools/nidusctl addressbook create alice contacts
 ```
 
-Users can also be created/removed via the web UI (`/web/`) once logged in
-as an existing user — see **Web UI** below.
+Or use the web UI (`/web/`) once logged in — see **Web UI** below.
 
 ---
 
@@ -83,44 +88,66 @@ as an existing user — see **Web UI** below.
 docker compose up --build
 
 # Or build manually
-docker build -t davserver .
+docker build -t nidus .
 docker run -p 8080:8080 \
-  -v ./config.yaml:/app/config.yaml:ro \
-  -v dav-data:/app/data \
-  davserver
+  -v nidus-data:/app/data \
+  -e NIDUS_DATA_DIR=/app/data \
+  nidus
 ```
 
 The image also ships `nidusctl`, so once the container is running you can
 create your first user (and their calendars/address books) with
-`docker compose exec` — no need to install Go locally:
+`docker compose exec`:
 
 ```bash
-docker compose exec davserver nidusctl -config /app/config.yaml user create alice \
+docker compose exec nidus nidusctl user create alice \
   --display-name "Alice Smith" --email alice@example.com
-# (prompts for a password; use --password to skip the prompt, e.g. in scripts)
+# (prompts for a password; use --password to skip the prompt)
 
-docker compose exec davserver nidusctl -config /app/config.yaml calendar create alice personal
-docker compose exec davserver nidusctl -config /app/config.yaml addressbook create alice contacts
+docker compose exec nidus nidusctl calendar create alice personal
+docker compose exec nidus nidusctl addressbook create alice contacts
 ```
 
-### Pre-built images
+### Using pre-built images
 
-Pushing a version tag (e.g. `v1.2.3`) or publishing a release triggers
-[`.github/workflows/docker-release.yml`](.github/workflows/docker-release.yml),
+This project uses year.month.hotfix versioning (e.g. `2026.8.0`, `2026.8.1`)
+rather than semantic versioning. Pushing a version tag (e.g. `2026.8.0`) or
+publishing a release triggers
+[`.gitea/workflows/docker-release.yml`](.gitea/workflows/docker-release.yml),
 which builds and publishes a multi-arch (`linux/amd64` + `linux/arm64`)
 image to `git.arnef.de/arnef/nidus`, tagged with the version, `<major>.<minor>`,
 `latest`, and the short commit SHA. It authenticates via the
-`REGISTRY_USERNAME`/`REGISTRY_PASSWORD` repository secrets. Point
-`docker-compose.yaml`'s `image:` at it instead of `build: .` to use it
-directly, e.g.:
+`REGISTRY_USERNAME`/`REGISTRY_PASSWORD` repository secrets.
+
+A minimal standalone `docker-compose.yml` that pulls this image instead of
+building from a checkout — configuration is done entirely via environment
+variables (no `config.yaml` to copy over):
 
 ```yaml
 services:
-  davserver:
+  nidus:
     image: git.arnef.de/arnef/nidus:latest
+    ports:
+      - "8080:8080"
+    volumes:
+      - nidus-data:/app/data
+    environment:
+      - NIDUS_DATA_DIR=/app/data
+      # Optional: other environment variables
+      # - NIDUS_PORT=8080
+      # - NIDUS_HOST=0.0.0.0
+      # - NIDUS_BASE_URL=https://dav.example.com
+      # - NIDUS_AUTH_REALM="My DAV Server"
+      # - NIDUS_LOG_LEVEL=info
+      # - NIDUS_LOG_FORMAT=text
+    restart: unless-stopped
+
+volumes:
+  nidus-data:
 ```
 
----
+Note: This server does **not** handle TLS. Use a reverse proxy (e.g. Nginx,
+Caddy, Traefik) to terminate TLS and forward requests to the server.
 
 ## API endpoints
 
@@ -155,24 +182,25 @@ grantee's own home-set alongside their own calendars — no separate account
 or extra client configuration needed.
 
 Sharing grants are stored in a small SQLite database at
-`<data_dir>/nidus.db` (not in `config.yaml`) and can be managed either via
+`<data_dir>/nidus.db` (not in any config file) and can be managed either via
 the `nidusctl` CLI or the web UI's dashboard (see below):
 
 ```bash
 # Give bob write access to alice's "work" calendar
-go run ./tools/nidusctl -config config.yaml calendar share alice work bob write
+go run ./tools/nidusctl calendar share alice work bob write
 
 # List everyone alice's "work" calendar is shared with
-go run ./tools/nidusctl -config config.yaml calendar shares alice work
+go run ./tools/nidusctl calendar shares alice work
 
 # Revoke access
-go run ./tools/nidusctl -config config.yaml calendar unshare alice work bob
+go run ./tools/nidusctl calendar unshare alice work bob
 
 # Address books work the same way, using "addressbook" instead of "calendar"
-go run ./tools/nidusctl -config config.yaml addressbook share alice contacts bob read
+go run ./tools/nidusctl addressbook share alice contacts bob read
 ```
 
-Or via `make`: `make nidusctl ARGS="calendar share alice work bob write"`.
+(Both the server and `nidusctl` resolve the data directory from the
+`NIDUS_DATA_DIR` environment variable.)
 
 A calendar that `alice` shares with `bob` appears in bob's calendar
 home-set as `/cal/home/alice~work/` (i.e. `<owner>~<calendar name>`) — the
@@ -192,23 +220,24 @@ mobile browsers:
   `nidus.db` (`web_sessions` table), independent of DAV Basic Auth. Includes
   a "Show/Hide" password toggle to rule out typos before submitting.
 - **Dashboard** (`/web/`) — create/delete your own calendars, address
-  books, and ICS/webcal subscriptions; see who your resources are shared
-  with and what others have shared with you; manage sharing grants
-  directly (same effect as `nidusctl`) — updates happen in place via
-  [htmx](https://htmx.org/) without a full page reload.
+  books, ICS/webcal subscriptions, and the Birthdays calendar; see who your
+  resources are shared with and what others have shared with you; manage
+  sharing grants directly (same effect as `nidusctl`) — updates happen in
+  place via [htmx](https://htmx.org/) without a full page reload.
 - **Files** (`/web/files/`) — a browser for the same storage the WebDAV
   endpoint (`/files/`) serves: navigate folders, create new folders,
-  upload files/folders (including via drag & drop), download, and delete
-  files or folders. Files open **inline** in the browser when the type
-  supports it (video, audio, images, PDF, …) instead of always forcing a
-  download; a separate "Download" action is always available to force a
-  save-as.
+  upload files/folders (including via drag & drop), download, sort by name or
+  date, and delete files or folders. Files open **inline** in the browser when
+  the type supports it (video, audio, images, PDF, …) instead of always
+  forcing a download; a separate "Download" action is always available to
+  force a save-as.
 - **Contacts** (`/web/contacts/`) — browse address books, create/edit/
-  delete contacts (name, organization, birthday, phone numbers, emails,
-  addresses, photo), and import/export vCards (`.vcf`).
+  delete contacts (first/last name, organization, birthday, phone numbers,
+  emails, address, photo), and import/export vCards (`.vcf`).
 - **Calendar** (`/web/calendar`) — month and week views across all your
-  own and shared calendars, create/edit/delete events, per-calendar
-  colors, and import/export `.ics` files.
+  own and shared calendars (including ICS/webcal subscriptions and the
+  Birthdays calendar), with a detail view for each event; create/edit/delete
+  events, per-calendar colors, and import/export `.ics` files.
 - **Account** (`/web/account`) — update your display name/email and
   change your password.
 - **Logout** (`/web/logout`).
@@ -230,64 +259,37 @@ make web-assets  # regenerate templ code + rebuild web/static/app.css and web/st
 
 ---
 
-## TLS / Reverse proxy
-
-### Self-signed certificate (development)
-
-```bash
-openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes
-```
-
-Update `config.yaml`:
-
-```yaml
-tls:
-  enabled: true
-  cert_file: cert.pem
-  key_file:  key.pem
-```
-
-### Caddy reverse proxy (recommended for production)
-
-```
-dav.example.com {
-    reverse_proxy localhost:8080
-}
-```
-
----
-
 ## Configuration reference
 
-```yaml
-server:
-  host: "0.0.0.0"
-  port: 8080
-  base_url: "https://dav.example.com"   # used in DAV responses
+Configuration is done via environment variables:
 
-auth:
-  realm: "My DAV Server"
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `NIDUS_HOST` | `0.0.0.0` | Server listen host |
+| `NIDUS_PORT` | `8080` | Server listen port |
+| `NIDUS_BASE_URL` | (auto) | Public URL for DAV responses (e.g. https://dav.example.com) |
+| `NIDUS_AUTH_REALM` | `DAV Server` | HTTP Basic Auth realm |
+| `NIDUS_DATA_DIR` | `./data` | Data directory for all user data |
+| `NIDUS_LOG_LEVEL` | `info` | Log level: debug, info, warn, error |
+| `NIDUS_LOG_FORMAT` | `text` | Log format: text, json |
 
-storage:
-  data_dir: "./data"   # all user data lives here
+Example:
 
-logging:
-  level: "info"    # debug | info | warn | error
-  format: "text"   # text | json
-
-tls:
-  enabled: false
-  cert_file: ""
-  key_file:  ""
+```bash
+export NIDUS_DATA_DIR="./data"
+export NIDUS_PORT="8080"
+export NIDUS_BASE_URL="https://dav.example.com"
+export NIDUS_LOG_LEVEL="info"
 ```
 
-Users, calendars, and address books are managed via `nidusctl`, not
-`config.yaml` — see **Managing users** below.
+This server does **not** handle TLS — use a reverse proxy (e.g. Nginx, Caddy,
+Traefik) to terminate TLS and forward requests to the server.
 
 ## Managing users
 
-All user/calendar/address-book management is done with `nidusctl` (or the
-web UI). Nothing is stored in `config.yaml` anymore.
+All user/calendar/address-book management is done with `nidusctl` or the
+web UI (`/web/`). User and resource data lives in `nidus.db`, not in a
+config file.
 
 ```bash
 # Users
@@ -316,35 +318,34 @@ nidusctl addressbook shares <owner> <book>
 
 Passwords are prompted for interactively (masked, double-entry) when
 `--password` is omitted. The web UI (`/web/`) also lets a logged-in user
-create/delete their own calendars and address books from the dashboard.
-
-> **Upgrading from an older version?** The `users:` section in
-> `config.yaml` is no longer read. Recreate your users with
-> `nidusctl user create` (and their calendars/address books) — there is no
-> automatic migration from the old config format.
+create/delete their own calendars, address books, and ICS/webcal
+subscriptions from the dashboard.
 
 ---
 
 ## Project layout
 
 ```
-caldav-server/
+nidus/
 ├── cmd/server/          # main entrypoint
 ├── internal/
 │   ├── auth/            # HTTP Basic Auth middleware (DAV endpoints)
-│   ├── caldav/          # CalDAV backend
+│   ├── birthdays/       # compute a virtual Birthday calendar from contacts
+│   ├── caldav/          # CalDAV backend (incl. ICS subscriptions & Birthdays)
 │   ├── carddav/         # CardDAV backend
-│   ├── config/          # YAML config loader
-│   ├── db/              # SQLite store (shares, web UI sessions)
+│   ├── config/          # configuration loader (environment variables)
+│   ├── db/              # SQLite store (users, calendars, shares, sessions)
+│   ├── icalfix/         # iCalendar (RFC 5545) parsing/fixing helpers
+│   ├── icssub/          # remote ICS/webcal subscription fetcher
 │   ├── store/           # filesystem storage layer
-│   ├── web/             # web UI (cookie sessions, dashboard, share mgmt)
+│   ├── web/             # web UI (templ, dashboard, share mgmt, sessions)
 │   │   └── templates/   # templ templates (+ generated *_templ.go)
 │   └── webdav/          # WebDAV file handler
-├── tools/hashpwd/       # bcrypt password hasher CLI
-├── tools/nidusctl/      # sharing-grant admin CLI
+├── tools/nidusctl/      # admin CLI (users, calendars, address books, sharing)
+├── tools/migrate/       # data directory migration tool
+├── tools/hashpwd/       # standalone bcrypt password generator
 ├── web/                 # front-end assets: Tailwind input/config, static/
 │   └── static/          # compiled app.css + htmx.min.js (embedded into the binary)
-├── config.example.yaml  # sample configuration (copy to config.yaml)
 ├── Dockerfile
 ├── docker-compose.yaml
 └── Makefile
@@ -372,22 +373,7 @@ on this in security-sensitive environments.
 
 ---
 
-## Dependencies
+## License
 
-| Package | Purpose |
-|---------|---------|
-| `github.com/emersion/go-webdav` | WebDAV/CalDAV/CardDAV protocol layer |
-| `github.com/emersion/go-ical`   | iCalendar parsing/serialisation |
-| `github.com/emersion/go-vcard`  | vCard parsing/serialisation |
-| `golang.org/x/crypto`           | bcrypt |
-| `golang.org/x/net`              | `golang.org/x/net/webdav` |
-| `gopkg.in/yaml.v3`              | YAML config parsing |
-| `modernc.org/sqlite`            | Pure-Go SQLite driver (shares, web UI sessions) |
-| `github.com/a-h/templ`          | Type-safe Go HTML templates (web UI) |
-
-Front-end (dev-only, not required at runtime — see [Web UI](#web-ui)):
-
-| Tool | Purpose |
-|------|---------|
-| Tailwind CSS v4 (`web/package.json`) | Utility-first CSS, compiled to `web/static/app.css` |
-| [htmx](https://htmx.org/) (`web/static/htmx.min.js`, vendored) | Partial page updates without a JS framework |
+nidus is licensed under the **GNU Affero General Public License v3.0 or
+later (AGPL-3.0-or-later)**. See [`LICENSE`](LICENSE) for the full text.

cmd/server/main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"context"
-	"flag"
 	"fmt"
 	"log/slog"
 	"net"
@@ -13,24 +12,21 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/yourusername/caldav-server/internal/auth"
-	"github.com/yourusername/caldav-server/internal/caldav"
-	"github.com/yourusername/caldav-server/internal/carddav"
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/store"
-	"github.com/yourusername/caldav-server/internal/web"
-	filewebdav "github.com/yourusername/caldav-server/internal/webdav"
-	webstatic "github.com/yourusername/caldav-server/web"
+	"git.arnef.de/arnef/nidus/internal/auth"
+	"git.arnef.de/arnef/nidus/internal/caldav"
+	"git.arnef.de/arnef/nidus/internal/carddav"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/icssub"
+	"git.arnef.de/arnef/nidus/internal/store"
+	"git.arnef.de/arnef/nidus/internal/web"
+	filewebdav "git.arnef.de/arnef/nidus/internal/webdav"
+	webstatic "git.arnef.de/arnef/nidus/web"
 )
 
 func main() {
-	var cfgPath string
-	flag.StringVar(&cfgPath, "config", "config.yaml", "path to configuration file")
-	flag.Parse()
-
 	// ---- Configuration ----
-	cfg, err := config.Load(cfgPath)
+	cfg, err := config.Load()
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "error loading config: %v\n", err)
 		os.Exit(1)
@@ -41,8 +37,7 @@ func main() {
 	logger.Info("starting DAV server",
 		"host", cfg.Server.Host,
 		"port", cfg.Server.Port,
-		"base_url", cfg.Server.BaseURL,
-		"tls", cfg.TLS.Enabled)
+		"base_url", cfg.Server.BaseURL)
 
 	// ---- Storage ----
 	st, err := store.NewStore(cfg.Storage.DataDir)
@@ -51,6 +46,13 @@ func main() {
 		os.Exit(1)
 	}
 
+	// ---- Run migration if data directory needs restructuring ----
+	if err := st.Migrate(); err != nil {
+		logger.Error("migration failed", "error", err)
+		os.Exit(1)
+	}
+	logger.Info("data directory migration completed")
+
 	// ---- Database (users, calendars, address books, sharing) ----
 	dbPath := filepath.Join(cfg.Storage.DataDir, "nidus.db")
 	dbase, err := db.Open(dbPath)
@@ -102,10 +104,16 @@ func main() {
 	authMw := auth.NewMiddleware(cfg, dbase, logger)
 
 	// ---- Handlers ----
-	calHandler := caldav.NewHandler(cfg, st, dbase, logger)
+	// A single ICS-subscription cache is shared by both the CalDAV backend
+	// (for DAV clients) and the web UI (for the browser calendar page), so
+	// the same subscription is fetched and served identically regardless
+	// of which surface a client hits, and one background refresh refreshes
+	// both at once.
+	icsCache := icssub.NewCache(icssub.DefaultTTL)
+	calHandler := caldav.NewHandler(cfg, st, dbase, logger, icsCache)
 	cardHandler := carddav.NewHandler(cfg, st, dbase, logger)
 	fileHandler := filewebdav.NewHandler(cfg, cfg.Storage.DataDir, logger)
-	webUI := web.NewServer(cfg, st, dbase, logger)
+	webUI := web.NewServer(cfg, st, dbase, logger, icsCache)
 
 	mux := buildMux(cfg, authMw, calHandler, cardHandler, fileHandler, webUI, logger)
 
@@ -136,11 +144,7 @@ func main() {
 	}()
 
 	logger.Info("server ready", "addr", addr)
-	if cfg.TLS.Enabled {
-		err = srv.ListenAndServeTLS(cfg.TLS.CertFile, cfg.TLS.KeyFile)
-	} else {
 	err = srv.ListenAndServe()
-	}
 	if err != nil && err != http.ErrServerClosed {
 		logger.Error("server error", "error", err)
 		os.Exit(1)

config.example.yaml

@@ -1,31 +0,0 @@
-server:
-  host: "0.0.0.0"
-  port: 8080
-  # Set this to your public-facing URL so discovery responses are correct.
-  # base_url: "https://dav.example.com"
-
-auth:
-  realm: "My DAV Server"
-
-storage:
-  data_dir: "./data"
-
-logging:
-  level: "debug" # debug | info | warn | error
-  format: "text" # text | json
-
-tls:
-  enabled: false
-  # cert_file: "/etc/ssl/certs/dav.crt"
-  # key_file:  "/etc/ssl/private/dav.key"
-
-# Users, calendars, and address books are no longer configured here — they
-# are stored in the database (<data_dir>/nidus.db) and managed with
-# nidusctl or the web UI (/web/):
-#
-#   nidusctl user create alice --password mysecretpassword --display-name "Alice Smith" --email alice@example.com
-#   nidusctl calendar create alice personal
-#   nidusctl calendar create alice work
-#   nidusctl addressbook create alice contacts
-#
-# Run `nidusctl help` for the full command list.

docker-compose.yaml

@@ -1,11 +1,19 @@
 services:
-  davserver:
+  nidus:
     build: .
     ports:
       - "8080:8080"
+    environment:
+      # Optional: other environment variables
+      # - NIDUS_DATA_DIR=/app/data
+      # - NIDUS_HOST=0.0.0.0
+      # - NIDUS_PORT=8080
+      # - NIDUS_BASE_URL=https://dav.example.com
+      # - NIDUS_AUTH_REALM="My DAV Server"
+      # - NIDUS_LOG_LEVEL=info
+      # - NIDUS_LOG_FORMAT=text
     volumes:
-      - ./config.yaml:/app/config.yaml:ro
-      - dav-data:/app/data
+      - nidus-data:/app/data
     restart: unless-stopped
     healthcheck:
       test: ["CMD", "wget", "-qO-", "http://localhost:8080/healthz"]
@@ -14,4 +22,4 @@ services:
       retries: 3
 
 volumes:
-  dav-data:
+  nidus-data:

go.mod

@@ -1,4 +1,4 @@
-module github.com/yourusername/caldav-server
+module git.arnef.de/arnef/nidus
 
 go 1.25.0
 

internal/auth/middleware.go

@@ -5,8 +5,8 @@ import (
 	"log/slog"
 	"net/http"
 
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
 )
 
 type contextKey string

internal/birthdays/birthdays.go

@@ -14,8 +14,8 @@ import (
 
 	"github.com/emersion/go-vcard"
 
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/store"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/store"
 )
 
 // Contact holds one contact's parsed birthday.

internal/caldav/backend.go

@@ -14,15 +14,15 @@ import (
 	"strings"
 	"time"
 
+	"git.arnef.de/arnef/nidus/internal/auth"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/icalfix"
+	"git.arnef.de/arnef/nidus/internal/icssub"
+	"git.arnef.de/arnef/nidus/internal/store"
 	ical "github.com/emersion/go-ical"
 	"github.com/emersion/go-webdav"
 	"github.com/emersion/go-webdav/caldav"
-	"github.com/yourusername/caldav-server/internal/auth"
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/icalfix"
-	"github.com/yourusername/caldav-server/internal/icssub"
-	"github.com/yourusername/caldav-server/internal/store"
 )
 
 // sharedNameSep separates the owner from the calendar name in the
@@ -41,10 +41,16 @@ type Backend struct {
 	icsCache *icssub.Cache
 }
 
-// NewBackend creates a CalDAV backend. dbase may be nil, in which case
-// calendar sharing is disabled (only a user's own calendars are visible).
-func NewBackend(cfg *config.Config, st *store.Store, dbase *db.DB, logger *slog.Logger) *Backend {
-	return &Backend{cfg: cfg, store: st, dbase: dbase, logger: logger, icsCache: icssub.NewCache(icssub.DefaultTTL)}
+// NewBackend creates a CalDAV backend over an existing ICS cache.
+// dbase may be nil, in which case calendar sharing is disabled (only a
+// user's own calendars are visible). The icsCache is shared with any
+// other consumers (notably the web UI) so CalDAV and the web calendar
+// page see identical, cache-consistent events for ICS subscriptions.
+func NewBackend(cfg *config.Config, st *store.Store, dbase *db.DB, logger *slog.Logger, icsCache *icssub.Cache) *Backend {
+	if icsCache == nil {
+		icsCache = icssub.NewCache(icssub.DefaultTTL)
+	}
+	return &Backend{cfg: cfg, store: st, dbase: dbase, logger: logger, icsCache: icsCache}
 }
 
 // NewHandler returns an http.Handler for the /cal/ prefix.
@@ -54,8 +60,8 @@ func NewBackend(cfg *config.Config, st *store.Store, dbase *db.DB, logger *slog.
 // property into PROPFIND responses for calendar collections, since
 // go-webdav's caldav.Backend interface has no extension point for
 // vendor-specific WebDAV properties.
-func NewHandler(cfg *config.Config, st *store.Store, dbase *db.DB, logger *slog.Logger) http.Handler {
-	b := NewBackend(cfg, st, dbase, logger)
+func NewHandler(cfg *config.Config, st *store.Store, dbase *db.DB, logger *slog.Logger, icsCache *icssub.Cache) http.Handler {
+	b := NewBackend(cfg, st, dbase, logger, icsCache)
 	return &colorInjectingHandler{backend: b, next: &caldav.Handler{Backend: b}}
 }
 

internal/caldav/backend_test.go

@@ -11,11 +11,11 @@ import (
 	"strings"
 	"testing"
 
+	"git.arnef.de/arnef/nidus/internal/auth"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/store"
 	ical "github.com/emersion/go-ical"
-	"github.com/yourusername/caldav-server/internal/auth"
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/store"
 )
 
 func newTestBackend(t *testing.T) (*Backend, *db.DB) {
@@ -46,7 +46,7 @@ func newTestBackend(t *testing.T) (*Backend, *db.DB) {
 		t.Fatalf("CreateCalendar bob/personal: %v", err)
 	}
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
-	return NewBackend(cfg, st, dbase, logger), dbase
+	return NewBackend(cfg, st, dbase, logger, nil), dbase
 }
 
 func ctxFor(username string) context.Context {
@@ -179,7 +179,7 @@ func TestPropFindEmitsCalendarColor(t *testing.T) {
 	}
 
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
-	handler := NewHandler(&config.Config{}, st, dbase, logger)
+	handler := NewHandler(&config.Config{}, st, dbase, logger, nil)
 
 	req := httptest.NewRequest("PROPFIND", "/cal/home/", strings.NewReader(
 		`<?xml version="1.0"?><a:propfind xmlns:a="DAV:"><a:allprop/></a:propfind>`))
@@ -250,7 +250,7 @@ func TestPropFindExplicitCalendarColorRequest(t *testing.T) {
 	}
 
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
-	handler := NewHandler(&config.Config{}, st, dbase, logger)
+	handler := NewHandler(&config.Config{}, st, dbase, logger, nil)
 
 	req := httptest.NewRequest("PROPFIND", "/cal/home/work/", strings.NewReader(
 		`<?xml version="1.0"?><D:propfind xmlns:D="DAV:" xmlns:A="http://apple.com/ns/ical/">`+

internal/caldav/birthdays.go

@@ -13,7 +13,7 @@ import (
 	"github.com/emersion/go-webdav"
 	"github.com/emersion/go-webdav/caldav"
 
-	"github.com/yourusername/caldav-server/internal/birthdays"
+	"git.arnef.de/arnef/nidus/internal/birthdays"
 )
 
 // birthdaysCalendarName is the fixed, reserved local calendar name the

internal/caldav/ics.go

@@ -1,8 +1,6 @@
 package caldav
 
 import (
-	"crypto/sha1"
-	"encoding/hex"
 	"fmt"
 	"net/http"
 	"strings"
@@ -12,7 +10,8 @@ import (
 	"github.com/emersion/go-webdav"
 	"github.com/emersion/go-webdav/caldav"
 
-	"github.com/yourusername/caldav-server/internal/db"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/icssub"
 )
 
 // defaultICSColor is the display color for an ICS/webcal subscription
@@ -32,8 +31,9 @@ func (b *Backend) icsSubscriptionCalendarMeta(owner string, sub db.ICSSubscripti
 }
 
 // icsObjectUID returns the UID a fetched VEVENT should be addressed by:
-// its own UID property if it has one, otherwise a stable hash of its
-// position so it still round-trips consistently between requests.
+// its own UID property if it has one, otherwise a placeholder derived from
+// the object ID (so the event still has a *unique* UID in the returned
+// VCALENDAR).
 func icsObjectUID(ev ical.Event, fallback string) string {
 	if p := ev.Props.Get(ical.PropUID); p != nil && p.Value != "" {
 		return p.Value
@@ -41,16 +41,11 @@ func icsObjectUID(ev ical.Event, fallback string) string {
 	return fallback
 }
 
-// icsObjID builds the object ID (file-name-like, ".ics" suffixed) used to
-// address a fetched VEVENT within its subscription calendar, derived from
-// its UID so it stays stable across fetches of the same feed.
-func icsObjID(uid string) string {
-	sum := sha1.Sum([]byte(uid))
-	return hex.EncodeToString(sum[:]) + ".ics"
-}
-
-// listICSSubscriptionCalendarObjects fetches sub's remote calendar (via
-// b.icsCache) and returns one caldav.CalendarObject per VEVENT.
+// icsSubscriptionCalendarObjects fetches sub's remote calendar (via
+// b.icsCache) and returns one caldav.CalendarObject per VEVENT. The
+// object path is derived from icssub.EventID(ev) so the same event keeps
+// the same path across fetches, even if its position in the document
+// changes.
 func (b *Backend) listICSSubscriptionCalendarObjects(localName string, sub db.ICSSubscription) ([]caldav.CalendarObject, error) {
 	cal, err := b.icsCache.Get(sub.URL)
 	if err != nil {
@@ -58,8 +53,8 @@ func (b *Backend) listICSSubscriptionCalendarObjects(localName string, sub db.IC
 	}
 
 	var objs []caldav.CalendarObject
-	for i, ev := range cal.Events() {
-		obj, err := b.encodeICSObject(localName, ev, fmt.Sprintf("event-%d", i))
+	for _, ev := range cal.Events() {
+		obj, err := b.encodeICSObject(localName, ev)
 		if err != nil {
 			continue
 		}
@@ -75,24 +70,25 @@ func (b *Backend) icsSubscriptionCalendarObject(localName, objID string, sub db.
 	if err != nil {
 		return nil, webdav.NewHTTPError(http.StatusNotFound, fmt.Errorf("fetching ics subscription: %w", err))
 	}
-	for i, ev := range cal.Events() {
-		uid := icsObjectUID(ev, fmt.Sprintf("event-%d", i))
-		if icsObjID(uid) != objID {
+	for _, ev := range cal.Events() {
+		if icssub.EventID(ev) != objID {
 			continue
 		}
-		return b.encodeICSObject(localName, ev, fmt.Sprintf("event-%d", i))
+		return b.encodeICSObject(localName, ev)
 	}
 	return nil, webdav.NewHTTPError(http.StatusNotFound, fmt.Errorf("ics subscription event not found"))
 }
 
 // encodeICSObject wraps a single fetched VEVENT ev into its own
 // caldav.CalendarObject, encoding it as a standalone one-event calendar
-// the same way every other calendar object in this backend is
-// represented. fallbackUID is used to derive the object ID/UID if ev has
-// no UID property of its own.
-func (b *Backend) encodeICSObject(localName string, ev ical.Event, fallbackUID string) (*caldav.CalendarObject, error) {
-	uid := icsObjectUID(ev, fallbackUID)
-	objID := icsObjID(uid)
+// the same way every other calendar object in this backend is represented.
+func (b *Backend) encodeICSObject(localName string, ev ical.Event) (*caldav.CalendarObject, error) {
+	objID := icssub.EventID(ev)
+	if objID == "" {
+		// Not addressable (no DTSTART) — skip.
+		return nil, fmt.Errorf("event has no DTSTART; not addressable")
+	}
+	uid := icsObjectUID(ev, objID)
 
 	event := ical.NewEvent()
 	event.Props = ev.Props

internal/caldav/ics_shared_test.go

@@ -0,0 +1,268 @@
+package caldav
+
+import (
+	"context"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"path/filepath"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"git.arnef.de/arnef/nidus/internal/auth"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/icssub"
+	"git.arnef.de/arnef/nidus/internal/store"
+	ical "github.com/emersion/go-ical"
+)
+
+// icsSample is a minimal valid ICS feed with one VEVENT.
+const icsSample = "BEGIN:VCALENDAR\r\n" +
+	"VERSION:2.0\r\n" +
+	"PRODID:-//nidus//test//EN\r\n" +
+	"BEGIN:VEVENT\r\n" +
+	"UID:shared1@nidus.test\r\n" +
+	"DTSTAMP:20260101T000000Z\r\n" +
+	"DTSTART:20260805T090000Z\r\n" +
+	"DTEND:20260805T100000Z\r\n" +
+	"SUMMARY:Shared event\r\n" +
+	"END:VEVENT\r\n" +
+	"END:VCALENDAR\r\n"
+
+// mustCalEvent parses raw and returns its first VEVENT (panic on error;
+// safe in tests).
+func mustCalEvent(t *testing.T, raw string) ical.Event {
+	t.Helper()
+	_ = t
+	cal, err := ical.NewDecoder(strings.NewReader(raw)).Decode()
+	if err != nil {
+		panic("mustCalEvent: " + err.Error())
+	}
+	evs := cal.Events()
+	if len(evs) == 0 {
+		panic("mustCalEvent: no events")
+	}
+	return evs[0]
+}
+
+// TestICSSubscriptionListAndGetObject verifies the full CalDAV read path
+// for an ICS subscription: ListCalendarObjects returns one synthetic
+// stand-alone object whose Path is derived from icssub.EventID (not from
+// the event's position), and the same object is returned via
+// GetCalendarObject by the same Path.
+func TestICSSubscriptionListAndGetObject(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(icsSample))
+	}))
+	defer srv.Close()
+
+	dir := t.TempDir()
+	st, err := store.NewStore(filepath.Join(dir, "data"))
+	if err != nil {
+		t.Fatalf("NewStore: %v", err)
+	}
+	dbase, err := db.Open(filepath.Join(dir, "test.db"))
+	if err != nil {
+		t.Fatalf("db.Open: %v", err)
+	}
+	defer dbase.Close()
+
+	if err := dbase.CreateUser("alice", "pw", "", ""); err != nil {
+		t.Fatalf("CreateUser: %v", err)
+	}
+	if err := dbase.CreateICSSubscription("alice", "holidays", srv.URL, ""); err != nil {
+		t.Fatalf("CreateICSSubscription: %v", err)
+	}
+
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	b := NewBackend(&config.Config{}, st, dbase, logger, icssub.NewCache(time.Hour))
+
+	ctx := auth.NewContext(context.Background(), &auth.Principal{Username: "alice"})
+
+	objs, err := b.ListCalendarObjects(ctx, "/cal/home/holidays/", nil)
+	if err != nil {
+		t.Fatalf("ListCalendarObjects: %v", err)
+	}
+	if len(objs) != 1 {
+		t.Fatalf("expected 1 object, got %d", len(objs))
+	}
+
+	// The Path must be derived from the event's DTSTART/DTEND/SUMMARY —
+	// i.e. icssub.EventID(ev), not from the event's position in the feed.
+	ev := mustCalEvent(t, icsSample)
+	wantID := icssub.EventID(ev)
+	if wantID == "" {
+		t.Fatal("EventID must be non-empty for a valid event")
+	}
+	wantPath := calObjectPath("holidays", wantID)
+	if objs[0].Path != wantPath {
+		t.Fatalf("Path = %q, want %q (icssub.EventID-based, not position-based)", objs[0].Path, wantPath)
+	}
+
+	// GetCalendarObject by the same Path should return an object that has
+	// a valid VEVENT whose UID matches our source ICS (round-trip
+	// correctness).
+	found, err := b.GetCalendarObject(ctx, objs[0].Path, nil)
+	if err != nil {
+		t.Fatalf("GetCalendarObject: %v", err)
+	}
+	if found.Path != objs[0].Path {
+		t.Fatalf("round-trip path mismatch: %q vs %q", found.Path, objs[0].Path)
+	}
+	if found.Data == nil || len(found.Data.Events()) == 0 {
+		t.Fatalf("expected found.Data to have >=1 event, got %+v", found.Data)
+	}
+	uid := found.Data.Events()[0].Props.Get(ical.PropUID)
+	if uid == nil || uid.Value != "shared1@nidus.test" {
+		t.Fatalf("expected UID shared1@nidus.test in round-tripped event, got %+v", uid)
+	}
+}
+
+// TestIcssubCacheSharedBetweenConsumersInCalDav verifies that one
+// *icssub.Cache shared by two different callers of the same backend does
+// not re-fetch the upstream twice (the second caller sees the cached
+// copy via the singleflight guard), proving the "return cached value and
+// update in the background" design is reachable from the CalDAV API.
+func TestIcssubCacheSharedBetweenConsumersInCalDav(t *testing.T) {
+	var hits atomic.Int32
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		hits.Add(1)
+		// Sleep long enough that *if* the second Get blocked, this
+		// test's wall clock would obviously exceed the bound below.
+		time.Sleep(30 * time.Millisecond)
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(icsSample))
+	}))
+	defer srv.Close()
+
+	dir := t.TempDir()
+	st, err := store.NewStore(filepath.Join(dir, "data"))
+	if err != nil {
+		t.Fatalf("NewStore: %v", err)
+	}
+	dbase, err := db.Open(filepath.Join(dir, "test.db"))
+	if err != nil {
+		t.Fatalf("db.Open: %v", err)
+	}
+	defer dbase.Close()
+
+	if err := dbase.CreateUser("alice", "pw", "", ""); err != nil {
+		t.Fatalf("CreateUser: %v", err)
+	}
+	if err := dbase.CreateICSSubscription("alice", "holidays", srv.URL, ""); err != nil {
+		t.Fatalf("CreateICSSubscription: %v", err)
+	}
+
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	// One cache, shared by two backends on the same DB — mirrors the
+	// production wiring (cmd/server/main.go) where the CalDAV and web UI
+	// share one instance.
+	shared := icssub.NewCache(time.Hour)
+	b1 := NewBackend(&config.Config{}, st, dbase, logger, shared)
+	b2 := NewBackend(&config.Config{}, st, dbase, logger, shared)
+
+	ctx := auth.NewContext(context.Background(), &auth.Principal{Username: "alice"})
+
+	if _, err := b1.ListCalendarObjects(ctx, "/cal/home/holidays/", nil); err != nil {
+		t.Fatalf("backend 1 list: %v", err)
+	}
+	after1 := hits.Load()
+	if _, err := b2.ListCalendarObjects(ctx, "/cal/home/holidays/", nil); err != nil {
+		t.Fatalf("backend 2 list: %v", err)
+	}
+	after2 := hits.Load()
+	if after2 > after1+1 {
+		t.Fatalf("expected shared cache to coalesce (hits %d → %d)", after1, after2)
+	}
+}
+
+// TestIcssubCacheStaleReturnsWithBackgroundRefresh verifies the
+// stale-while-revalidate path through the public Cache API: a cached
+// entry past its TTL is still returned immediately (never blocking the
+// caller for the slow 30 ms fetch), while a background refresh updates
+// the entry for the next Get.
+func TestIcssubCacheStaleReturnsWithBackgroundRefresh(t *testing.T) {
+	var hits atomic.Int32
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		hits.Add(1)
+		time.Sleep(50 * time.Millisecond)
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(icsSample))
+	}))
+	defer srv.Close()
+
+	c := icssub.NewCache(2 * time.Millisecond) // very short TTL
+	if _, err := c.Get(srv.URL); err != nil {
+		t.Fatalf("first Get: %v", err)
+	}
+	firstHits := hits.Load()
+
+	time.Sleep(5 * time.Millisecond) // force staleness
+
+	st := time.Now()
+	if _, err := c.Get(srv.URL); err != nil {
+		t.Fatalf("stale Get: %v", err)
+	}
+	if time.Since(st) > 40*time.Millisecond {
+		t.Fatalf("stale Get blocked on the network for %v — should have returned the cached copy", time.Since(st))
+	}
+
+	// Wait for the background refresh to land.
+	deadline := time.Now().Add(2 * time.Second)
+	for hits.Load() == firstHits && time.Now().Before(deadline) {
+		time.Sleep(5 * time.Millisecond)
+	}
+	if hits.Load() == firstHits {
+		t.Fatalf("background refresh did not fire (hits stayed at %d)", firstHits)
+	}
+}
+
+// TestICSSubscriptionEventIDMatchesEventInCalDav proves that the object
+// path the CalDAV backend advertises (in ListCalendarObjects) is exactly
+// the same string the EventDetailPage-style lookup would use on the web
+// side — i.e. both surfaces agree on what icssub.EventID(ev) produces.
+func TestICSSubscriptionEventIDMatchesEventInCalDav(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(icsSample))
+	}))
+	defer srv.Close()
+
+	dir := t.TempDir()
+	st, err := store.NewStore(filepath.Join(dir, "data"))
+	if err != nil {
+		t.Fatalf("NewStore: %v", err)
+	}
+	dbase, err := db.Open(filepath.Join(dir, "test.db"))
+	if err != nil {
+		t.Fatalf("db.Open: %v", err)
+	}
+	defer dbase.Close()
+
+	if err := dbase.CreateUser("alice", "pw", "", ""); err != nil {
+		t.Fatalf("CreateUser: %v", err)
+	}
+	if err := dbase.CreateICSSubscription("alice", "holidays", srv.URL, ""); err != nil {
+		t.Fatalf("CreateICSSubscription: %v", err)
+	}
+
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	b := NewBackend(&config.Config{}, st, dbase, logger, icssub.NewCache(time.Hour))
+	ctx := auth.NewContext(context.Background(), &auth.Principal{Username: "alice"})
+
+	objs, err := b.ListCalendarObjects(ctx, "/cal/home/holidays/", nil)
+	if err != nil || len(objs) == 0 {
+		t.Fatalf("list: objs=%d err=%v", len(objs), err)
+	}
+	gotPath := objs[0].Path
+	wantID := icssub.EventID(mustCalEvent(t, icsSample))
+	wantPath := calObjectPath("holidays", wantID)
+	if gotPath != wantPath {
+		t.Fatalf("CalDAV object path %q does not match web-side EventID-derived %q", gotPath, wantPath)
+	}
+}

internal/carddav/backend.go

@@ -9,13 +9,13 @@ import (
 	"strings"
 	"time"
 
+	"git.arnef.de/arnef/nidus/internal/auth"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/store"
 	vcard "github.com/emersion/go-vcard"
 	"github.com/emersion/go-webdav"
 	"github.com/emersion/go-webdav/carddav"
-	"github.com/yourusername/caldav-server/internal/auth"
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/store"
 )
 
 // sharedNameSep separates the owner from the address book name in the

internal/carddav/backend_test.go

@@ -8,11 +8,11 @@ import (
 	"strings"
 	"testing"
 
+	"git.arnef.de/arnef/nidus/internal/auth"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/store"
 	vcard "github.com/emersion/go-vcard"
-	"github.com/yourusername/caldav-server/internal/auth"
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/store"
 )
 
 func newTestBackend(t *testing.T) (*Backend, *db.DB) {

internal/config/config.go

@@ -3,97 +3,70 @@ package config
 import (
 	"fmt"
 	"os"
-
-	"gopkg.in/yaml.v3"
+	"strconv"
 )
 
 // Config is the top-level server configuration.
 type Config struct {
-	Server  ServerConfig  `yaml:"server"`
-	Auth    AuthConfig    `yaml:"auth"`
-	Storage StorageConfig `yaml:"storage"`
-	TLS     TLSConfig     `yaml:"tls"`
-	Logging LoggingConfig `yaml:"logging"`
+	Server  ServerConfig
+	Auth    AuthConfig
+	Storage StorageConfig
+	Logging LoggingConfig
 }
 
 type ServerConfig struct {
-	Host string `yaml:"host"`
-	Port int    `yaml:"port"`
-	// Base URL used in DAV responses (e.g. https://dav.example.com)
-	BaseURL string `yaml:"base_url"`
+	Host    string
+	Port    int
+	BaseURL string
 }
 
 type AuthConfig struct {
-	// Realm shown in WWW-Authenticate header
-	Realm string `yaml:"realm"`
+	Realm string
 }
 
 type StorageConfig struct {
-	// Root directory for all data
-	DataDir string `yaml:"data_dir"`
-}
-
-type TLSConfig struct {
-	Enabled  bool   `yaml:"enabled"`
-	CertFile string `yaml:"cert_file"`
-	KeyFile  string `yaml:"key_file"`
+	DataDir string
 }
 
 type LoggingConfig struct {
-	Level  string `yaml:"level"`  // debug | info | warn | error
-	Format string `yaml:"format"` // text | json
+	Level  string
+	Format string
 }
 
-// Load reads and parses a YAML config file.
-func Load(path string) (*Config, error) {
-	data, err := os.ReadFile(path)
-	if err != nil {
-		return nil, fmt.Errorf("reading config %q: %w", path, err)
-	}
-
+// Load reads and parses environment variables to create the configuration.
+func Load() (*Config, error) {
 	cfg := &Config{}
-	if err := yaml.Unmarshal(data, cfg); err != nil {
-		return nil, fmt.Errorf("parsing config %q: %w", path, err)
-	}
-
 	cfg.applyDefaults()
-
-	return cfg, cfg.validate()
+	return cfg, nil
 }
 
 func (c *Config) applyDefaults() {
-	if c.Server.Host == "" {
-		c.Server.Host = "0.0.0.0"
-	}
-	if c.Server.Port == 0 {
-		c.Server.Port = 8080
-	}
+	c.Server.Host = getEnv("NIDUS_HOST", "0.0.0.0")
+	c.Server.Port = getEnvInt("NIDUS_PORT", 8080)
+	c.Server.BaseURL = getEnv("NIDUS_BASE_URL", "")
+
 	if c.Server.BaseURL == "" {
-		scheme := "http"
-		if c.TLS.Enabled {
-			scheme = "https"
-		}
-		c.Server.BaseURL = fmt.Sprintf("%s://%s:%d", scheme, c.Server.Host, c.Server.Port)
-	}
-	if c.Auth.Realm == "" {
-		c.Auth.Realm = "DAV Server"
-	}
-	if c.Storage.DataDir == "" {
-		c.Storage.DataDir = "./data"
-	}
-	if c.Logging.Level == "" {
-		c.Logging.Level = "info"
-	}
-	if c.Logging.Format == "" {
-		c.Logging.Format = "text"
+		c.Server.BaseURL = fmt.Sprintf("http://%s:%d", c.Server.Host, c.Server.Port)
 	}
+
+	c.Auth.Realm = getEnv("NIDUS_AUTH_REALM", "DAV Server")
+	c.Storage.DataDir = getEnv("NIDUS_DATA_DIR", "./data")
+	c.Logging.Level = getEnv("NIDUS_LOG_LEVEL", "info")
+	c.Logging.Format = getEnv("NIDUS_LOG_FORMAT", "text")
 }
 
-func (c *Config) validate() error {
-	if c.TLS.Enabled {
-		if c.TLS.CertFile == "" || c.TLS.KeyFile == "" {
-			return fmt.Errorf("tls.cert_file and tls.key_file are required when tls is enabled")
+func getEnv(key string, defaultValue string) string {
+	if val := os.Getenv(key); val != "" {
+		return val
 	}
+	return defaultValue
+}
+
+func getEnvInt(key string, defaultValue int) int {
+	if val := os.Getenv(key); val != "" {
+		if intVal, err := strconv.Atoi(val); err == nil {
+			return intVal
 		}
-	return nil
+	}
+	return defaultValue
 }

internal/db/users.go

@@ -102,8 +102,6 @@ func (d *DB) DisplayName(username string) string {
 	return u.DisplayName
 }
 
-
-
 // DeleteUser removes username along with all of its calendars, address
 // books, and sharing grants (calendars/addressbooks cascade via foreign
 // key; shares are cleaned up explicitly since they reference usernames as

internal/icssub/icssub.go

@@ -7,6 +7,8 @@ package icssub
 import (
 	"bytes"
 	"context"
+	"crypto/sha256"
+	"encoding/hex"
 	"fmt"
 	"io"
 	"net/http"
@@ -16,11 +18,11 @@ import (
 
 	ical "github.com/emersion/go-ical"
 
-	"github.com/yourusername/caldav-server/internal/icalfix"
+	"git.arnef.de/arnef/nidus/internal/icalfix"
 )
 
-// DefaultTTL is how long a fetched calendar is cached before being
-// re-fetched on the next access.
+// DefaultTTL is how long a fetched calendar is considered "fresh" before a
+// Get will kick off a background refresh.
 const DefaultTTL = 15 * time.Minute
 
 // fetchTimeout bounds how long a single upstream request may take, so one
@@ -32,54 +34,143 @@ const fetchTimeout = 15 * time.Second
 // response.
 const maxBodySize = 32 * 1024 * 1024 // 32 MiB
 
+// entry holds everything the Cache knows about a single upstream URL. All
+// fields are only read/written while holding Cache.mu.
 type entry struct {
-	fetchedAt time.Time
+	url string // original URL as supplied by the caller (fetch normalizes)
+
+	// cal is the most recent successfully-fetched calendar. Nil until the
+	// first successful fetch for this URL.
 	cal *ical.Calendar
-	err       error
+	// lastErr is the most recent fetch error. Set alongside cal == nil
+	// (i.e. no successful fetch yet); cleared the moment a fetch succeeds.
+	lastErr error
+
+	// refreshing is true while a fetch (foreground, or background refresh)
+	// is in flight for this URL.
+	refreshing bool
+	// pending is the completion channel for the in-flight fetch. Only valid
+	// while refreshing is true; it is created fresh for each fetch and
+	// closed exactly once when that fetch finishes. Callers that see
+	// refreshing==true read this channel (under the lock) and wait on it.
+	pending chan struct{}
+
+	// fetchedAt is the wall-clock time of the most recent fetch attempt
+	// (success or failure), used for the TTL freshness check.
+	fetchedAt time.Time
 }
 
-// Cache fetches remote ICS calendars over HTTP(S), keeping a short-lived
-// in-memory copy per URL so repeated renders (e.g. every month-view page
-// load, or CalDAV client polling) don't re-fetch the same subscription
-// from origin every time.
+// Cache fetches remote ICS calendars over HTTP(S), keeping a shared
+// in-memory copy per URL. Semantics:
+//
+//   - Fresh entry (fetchedAt within TTL): return immediately, no I/O.
+//   - Stale entry with a cached copy: return the stale copy immediately
+//     AND spawn at most one background refresher (other callers in the
+//     same window piggyback on the in-flight refresh).
+//   - Stale entry with no cached copy (prior fetch failed): return the
+//     cached error immediately AND spawn a background retry.
+//   - No entry at all (very first call for this URL): block until a
+//     foreground fetch finishes (concurrent first-callers wait on a shared
+//     channel and all get the same result) and return its data.
 type Cache struct {
 	ttl    time.Duration
 	client *http.Client
 
 	mu   sync.Mutex
-	entries map[string]entry
+	urls map[string]*entry // keyed by normalizeURL(url)
 }
 
 // NewCache creates a Cache with the given TTL (use DefaultTTL if unsure).
 func NewCache(ttl time.Duration) *Cache {
 	return &Cache{
 		ttl:    ttl,
-		client:  &http.Client{Timeout: fetchTimeout},
-		entries: make(map[string]entry),
+		client: &http.Client{},
+		urls:   make(map[string]*entry),
 	}
 }
 
-// Get returns the parsed calendar fetched from url, using a cached copy
-// if it's still within the TTL. If a fresh fetch fails but a previously
-// fetched copy exists, the stale copy is returned instead of the error,
-// so a transient network issue doesn't blank out the calendar entirely.
+// Get returns the most recently successfully-fetched calendar for url, or
+// the most-recent fetch error if no successful copy exists yet (a
+// background refresher may already be retrying).
 func (c *Cache) Get(url string) (*ical.Calendar, error) {
+	key := normalizeURL(url)
+
 	c.mu.Lock()
-	e, ok := c.entries[url]
-	fresh := ok && time.Since(e.fetchedAt) < c.ttl
-	c.mu.Unlock()
-	if fresh {
-		return e.cal, e.err
+	e := c.urls[key]
+	if e == nil {
+		e = &entry{url: url}
+		c.urls[key] = e
 	}
 
-	cal, err := c.fetch(url)
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	if err != nil && ok && e.cal != nil {
-		return e.cal, nil
+	switch {
+	case e.cal == nil && e.lastErr == nil && !e.refreshing:
+		// Very first request for this URL: do a foreground fetch.
+		e.refreshing = true
+		e.pending = make(chan struct{})
+		ch := e.pending
+		c.mu.Unlock()
+		go c.doFetch(e, ch)
+		<-ch
+		return c.snapshot(e)
+
+	case e.cal == nil && e.lastErr == nil:
+		// A foreground fetch is already in flight — wait for it.
+		ch := e.pending
+		c.mu.Unlock()
+		<-ch
+		return c.snapshot(e)
+
+	default:
+		// We have some data (a cached copy or a cached error).
+		if time.Since(e.fetchedAt) < c.ttl {
+			// Fresh — just return.
+			c.mu.Unlock()
+			return c.snapshot(e)
 		}
-	c.entries[url] = entry{fetchedAt: time.Now(), cal: cal, err: err}
-	return cal, err
+		// Stale — return the cached value immediately; spawn at most one
+		// background refresher (or piggyback on one already in flight).
+		if !e.refreshing {
+			e.refreshing = true
+			ch := make(chan struct{})
+			e.pending = ch
+			c.mu.Unlock()
+			go c.doFetch(e, ch)
+		} else {
+			c.mu.Unlock()
+		}
+		return c.snapshot(e)
+	}
+}
+
+// doFetch performs the network I/O for the entry, updates cal/lastErr and
+// the freshness timestamp under the lock, clears the in-flight state, and
+// closes the per-fetch completion channel exactly once.
+func (c *Cache) doFetch(e *entry, ch chan struct{}) {
+	cal, err := c.fetch(e.url)
+	c.mu.Lock()
+	e.fetchedAt = time.Now()
+	if err == nil {
+		e.cal = cal
+		e.lastErr = nil
+	} else {
+		e.lastErr = err
+	}
+	e.refreshing = false
+	e.pending = nil
+	c.mu.Unlock()
+	close(ch)
+}
+
+// snapshot reads e.cal/e.lastErr under c.mu and returns the same value
+// shape Get does. Callers must not hold c.mu.
+func (c *Cache) snapshot(e *entry) (*ical.Calendar, error) {
+	c.mu.Lock()
+	cal, err := e.cal, e.lastErr
+	c.mu.Unlock()
+	if cal != nil {
+		return cal, nil
+	}
+	return nil, err
 }
 
 // fetch downloads and parses url, translating a "webcal://" scheme (used
@@ -128,3 +219,40 @@ func normalizeURL(u string) string {
 	}
 	return u
 }
+
+// EventID returns a stable, short identifier for a single ical.Event,
+// suitable for use as a filesystem object name or URL path segment. It is
+// the first 32 hex chars (128 bits) of
+// sha256("<DTSTART-value>|<duration>|<SUMMARY>") with a ".ics" suffix.
+//
+// Two events with the same DTSTART, same duration, and same SUMMARY hash
+// to the same ID — this matches the addressing scheme used both by the
+// web detail view and the CalDAV backend for ICS-subscription events.
+// Returns "" if DTSTART is missing (not addressable).
+func EventID(ev ical.Event) string {
+	start := ev.Props.Get(ical.PropDateTimeStart)
+	if start == nil {
+		return ""
+	}
+	dur := ""
+	if end := ev.Props.Get(ical.PropDateTimeEnd); end != nil {
+		if s, err := start.DateTime(time.UTC); err == nil {
+			if e, err := end.DateTime(time.UTC); err == nil {
+				dur = e.Sub(s).Round(time.Second).String()
+			}
+		}
+	}
+	summary := ""
+	if p := ev.Props.Get(ical.PropSummary); p != nil {
+		summary = p.Value
+	}
+
+	var keyBuf strings.Builder
+	keyBuf.WriteString(start.Value)
+	keyBuf.WriteRune('|')
+	keyBuf.WriteString(dur)
+	keyBuf.WriteRune('|')
+	keyBuf.WriteString(summary)
+	sum := sha256.Sum256([]byte(keyBuf.String()))
+	return hex.EncodeToString(sum[:16]) + ".ics"
+}

internal/icssub/icssub_test.go

@@ -0,0 +1,199 @@
+package icssub
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	ical "github.com/emersion/go-ical"
+)
+
+const sampleICS = "BEGIN:VCALENDAR\r\n" +
+	"VERSION:2.0\r\n" +
+	"PRODID:-//nidus//test//EN\r\n" +
+	"BEGIN:VEVENT\r\n" +
+	"UID:ev1@nidus.test\r\n" +
+	"DTSTAMP:20260101T000000Z\r\n" +
+	"DTSTART:20260805T090000Z\r\n" +
+	"DTEND:20260805T100000Z\r\n" +
+	"SUMMARY:Original title\r\n" +
+	"END:VEVENT\r\n" +
+	"END:VCALENDAR\r\n"
+
+func mustParseEvent(raw string) ical.Event {
+	cal, err := ical.NewDecoder(strings.NewReader(raw)).Decode()
+	if err != nil {
+		panic("mustParseEvent: " + err.Error())
+	}
+	evs := cal.Events()
+	if len(evs) == 0 {
+		panic("mustParseEvent: no events")
+	}
+	return evs[0]
+}
+
+// TestCacheFirstFetchPopulatesEntry verifies that the very first Get for a
+// URL does a foreground fetch and returns the parsed calendar.
+func TestCacheFirstFetchPopulatesEntry(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(sampleICS))
+	}))
+	defer srv.Close()
+
+	c := NewCache(time.Hour)
+	cal, err := c.Get(srv.URL)
+	if err != nil {
+		t.Fatalf("first Get: %v", err)
+	}
+	if len(cal.Events()) == 0 {
+		t.Fatalf("expected >=1 event, got 0")
+	}
+}
+
+// TestCacheStaleReturnsWithBackgroundRefresh verifies that once a cached
+// entry is stale, Get keeps returning the *stale* copy immediately while a
+// background refresh is spawned in a separate goroutine (rather than
+// blocking the caller on the network).
+func TestCacheStaleReturnsWithBackgroundRefresh(t *testing.T) {
+	var hits atomic.Int32
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		hits.Add(1)
+		time.Sleep(50 * time.Millisecond) // make the fetch slow enough to
+		w.WriteHeader(http.StatusOK)      // observe as background work
+		_, _ = w.Write([]byte(sampleICS))
+	}))
+	defer srv.Close()
+
+	c := NewCache(1 * time.Millisecond) // very short TTL
+	if _, err := c.Get(srv.URL); err != nil {
+		t.Fatalf("first Get: %v", err)
+	}
+	firstHits := hits.Load()
+
+	// Force staleness.
+	time.Sleep(3 * time.Millisecond)
+
+	// Subsequent Get must return the stale copy immediately without waiting
+	// for the slow server to respond — if it blocked, this call would take
+	// >= 50ms, which we bound with a deadline below via the hit counter.
+	st := time.Now()
+	cal, err := c.Get(srv.URL)
+	if err != nil {
+		t.Fatalf("second Get: %v", err)
+	}
+	if len(cal.Events()) == 0 {
+		t.Fatalf("expected event in stale response")
+	}
+	if time.Since(st) > 40*time.Millisecond {
+		t.Fatalf("second Get appears to have blocked on the network for %v", time.Since(st))
+	}
+
+	// Wait for the background refresh to complete.
+	deadline := time.Now().Add(2 * time.Second)
+	for hits.Load() == firstHits && time.Now().Before(deadline) {
+		time.Sleep(5 * time.Millisecond)
+	}
+	if hits.Load() == firstHits {
+		t.Fatalf("background refresh did not fire (hits stayed at %d)", firstHits)
+	}
+}
+
+// TestCacheConcurrentFirstFetchCoalesce ensures N concurrent first calls
+// for the same URL coalesce to a small number of actual origin fetches.
+func TestCacheConcurrentFirstFetchCoalesce(t *testing.T) {
+	var hits atomic.Int32
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		hits.Add(1)
+		time.Sleep(40 * time.Millisecond) // widen the coalescing window
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(sampleICS))
+	}))
+	defer srv.Close()
+
+	c := NewCache(time.Hour)
+
+	const n = 8
+	errs := make([]error, n)
+	var wg sync.WaitGroup
+	start := make(chan struct{})
+	for i := 0; i < n; i++ {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+			<-start
+			_, err := c.Get(srv.URL)
+			errs[i] = err
+		}(i)
+	}
+	close(start)
+	wg.Wait()
+	for _, err := range errs {
+		if err != nil {
+			t.Fatalf("goroutine error: %v", err)
+		}
+	}
+	// Without coalescing we'd see n=8 hits; with it we expect a small
+	// constant (the first caller fetches; the rest either return the
+	// in-progress result or kick off a coalesced background refresh).
+	if hits.Load() > 3 {
+		t.Fatalf("expected coalescing to reduce fetches (got %d)", hits.Load())
+	}
+}
+
+// TestEventIDStable verifies that the same event hashes to the same ID
+// across calls, and is the right shape (32 hex chars + ".ics").
+func TestEventIDStable(t *testing.T) {
+	ev := mustParseEvent(sampleICS)
+	id1 := EventID(ev)
+	id2 := EventID(ev)
+	if id1 != id2 {
+		t.Fatalf("EventID not stable: %q vs %q", id1, id2)
+	}
+	if !strings.HasSuffix(id1, ".ics") {
+		t.Fatalf("EventID should end in .ics, got %q", id1)
+	}
+	if len(id1) != 32+4 {
+		t.Fatalf("expected 32 hex chars + .ics, got %q (len %d)", id1, len(id1))
+	}
+}
+
+// TestEventIDDiffersForDifferentEvents verifies that two events with
+// different titles or different start times hash to different IDs, while
+// two events with only a different UID hash to the same ID.
+func TestEventIDDiffersForDifferentEvents(t *testing.T) {
+	base := EventID(mustParseEvent(sampleICS))
+
+	// Different title.
+	rawA := strings.Replace(sampleICS, "SUMMARY:Original title", "SUMMARY:Other title", 1)
+	if EventID(mustParseEvent(rawA)) == base {
+		t.Fatal("same start, different title must hash differently")
+	}
+
+	// Different start time.
+	rawB := strings.Replace(sampleICS, "DTSTART:20260805T090000Z", "DTSTART:20260806T090000Z", 1)
+	if EventID(mustParseEvent(rawB)) == base {
+		t.Fatal("different start times must hash differently")
+	}
+
+	// Same start, same title, different UID → same hash.
+	rawC := strings.Replace(sampleICS, "UID:ev1@nidus.test", "UID:ev2@nidus.test", 1)
+	if EventID(mustParseEvent(rawC)) != base {
+		t.Fatal("UID should not affect the hash — same start/dur/title must be equal")
+	}
+}
+
+// TestEventIDWorksWithoutUID verifies EventID still produces a value (from
+// DTSTART+DTEND+SUMMARY) when the event has no UID property.
+func TestEventIDWorksWithoutUID(t *testing.T) {
+	raw := strings.Replace(sampleICS, "UID:ev1@nidus.test\r\n", "", 1)
+	ev := mustParseEvent(raw)
+	id := EventID(ev)
+	if id == "" {
+		t.Fatal("EventID should be non-empty even without UID")
+	}
+}

internal/store/migrate.go

@@ -0,0 +1,200 @@
+package store
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// Migrate restructures the data directory from the old format to the new unified format.
+// It is idempotent and can be run multiple times safely.
+//
+// Old structure:
+//
+//	data/files/<username>/
+//	data/<username>/cal-<name>/
+//	data/<username>/card-<name>/
+//
+// New structure:
+//
+//	data/<username>/files/
+//	data/<username>/calendars/<name>/
+//	data/<username>/addressbooks/<name>/
+func (s *Store) Migrate() error {
+	users, err := s.listUserDirectories()
+	if err != nil {
+		return fmt.Errorf("listing user directories: %w", err)
+	}
+
+	for _, user := range users {
+		if err := s.migrateUser(user); err != nil {
+			return fmt.Errorf("migrating user %q: %w", user, err)
+		}
+	}
+
+	return nil
+}
+
+// listUserDirectories returns all user directories in the data directory.
+// It looks for directories that are NOT the old "files" directory,
+// and also checks inside the old "files" directory for users who need migrating.
+func (s *Store) listUserDirectories() ([]string, error) {
+	entries, err := os.ReadDir(s.rootDir)
+	if err != nil {
+		return nil, err
+	}
+
+	usersMap := make(map[string]bool)
+
+	for _, e := range entries {
+		if !e.IsDir() {
+			continue
+		}
+		name := e.Name()
+		// Skip the old files directory (will handle users inside it separately)
+		if name == "files" {
+			continue
+		}
+		usersMap[name] = true
+	}
+
+	// Also check the old files directory for users
+	filesDir := filepath.Join(s.rootDir, "files")
+	if filesEntries, err := os.ReadDir(filesDir); err == nil {
+		for _, e := range filesEntries {
+			if e.IsDir() {
+				usersMap[e.Name()] = true
+			}
+		}
+	}
+
+	var users []string
+	for user := range usersMap {
+		users = append(users, user)
+	}
+	return users, nil
+}
+
+// migrateUser migrates a single user's data from old to new structure.
+func (s *Store) migrateUser(user string) error {
+	userDir := filepath.Join(s.rootDir, user)
+
+	// Create user directory if it doesn't exist (needed for WebDAV migration)
+	if err := os.MkdirAll(userDir, 0o755); err != nil {
+		return fmt.Errorf("creating user directory %q: %w", userDir, err)
+	}
+
+	// Migrate WebDAV files: files/<username> -> <username>/files
+	if err := s.migrateWebDAV(user); err != nil {
+		return err
+	}
+
+	// Migrate CalDAV calendars: cal-<name> -> calendars/<name>
+	if err := s.migrateCalendars(user, userDir); err != nil {
+		return err
+	}
+
+	// Migrate CardDAV address books: card-<name> -> addressbooks/<name>
+	if err := s.migrateAddressBooks(user, userDir); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// migrateWebDAV moves the old files/<username> directory to <username>/files.
+func (s *Store) migrateWebDAV(user string) error {
+	oldPath := filepath.Join(s.rootDir, "files", user)
+	newPath := filepath.Join(s.rootDir, user, "files")
+
+	// Check if old directory exists and new doesn't
+	if _, err := os.Stat(oldPath); os.IsNotExist(err) {
+		return nil
+	}
+	if _, err := os.Stat(newPath); err == nil {
+		return nil // Already migrated
+	}
+
+	// Create parent directory if needed
+	if err := os.MkdirAll(filepath.Dir(newPath), 0o755); err != nil {
+		return fmt.Errorf("creating directory %q: %w", filepath.Dir(newPath), err)
+	}
+
+	// Move the directory
+	if err := os.Rename(oldPath, newPath); err != nil {
+		return fmt.Errorf("moving %q to %q: %w", oldPath, newPath, err)
+	}
+
+	return nil
+}
+
+// migrateCalendars moves old cal-<name> directories to calendars/<name>.
+func (s *Store) migrateCalendars(user string, userDir string) error {
+	entries, err := os.ReadDir(userDir)
+	if err != nil {
+		return fmt.Errorf("reading user directory %q: %w", userDir, err)
+	}
+
+	var calendars []string
+	for _, e := range entries {
+		if e.IsDir() && strings.HasPrefix(e.Name(), "cal-") {
+			calendars = append(calendars, e.Name())
+		}
+	}
+
+	if len(calendars) == 0 {
+		return nil
+	}
+
+	calendarsDir := filepath.Join(userDir, "calendars")
+	if err := os.MkdirAll(calendarsDir, 0o755); err != nil {
+		return fmt.Errorf("creating calendars directory %q: %w", calendarsDir, err)
+	}
+
+	for _, calName := range calendars {
+		oldPath := filepath.Join(userDir, calName)
+		newPath := filepath.Join(calendarsDir, strings.TrimPrefix(calName, "cal-"))
+
+		if err := os.Rename(oldPath, newPath); err != nil {
+			return fmt.Errorf("moving calendar %q: %w", calName, err)
+		}
+	}
+
+	return nil
+}
+
+// migrateAddressBooks moves old card-<name> directories to addressbooks/<name>.
+func (s *Store) migrateAddressBooks(user string, userDir string) error {
+	entries, err := os.ReadDir(userDir)
+	if err != nil {
+		return fmt.Errorf("reading user directory %q: %w", userDir, err)
+	}
+
+	var addressBooks []string
+	for _, e := range entries {
+		if e.IsDir() && strings.HasPrefix(e.Name(), "card-") {
+			addressBooks = append(addressBooks, e.Name())
+		}
+	}
+
+	if len(addressBooks) == 0 {
+		return nil
+	}
+
+	addressBooksDir := filepath.Join(userDir, "addressbooks")
+	if err := os.MkdirAll(addressBooksDir, 0o755); err != nil {
+		return fmt.Errorf("creating addressbooks directory %q: %w", addressBooksDir, err)
+	}
+
+	for _, bookName := range addressBooks {
+		oldPath := filepath.Join(userDir, bookName)
+		newPath := filepath.Join(addressBooksDir, strings.TrimPrefix(bookName, "card-"))
+
+		if err := os.Rename(oldPath, newPath); err != nil {
+			return fmt.Errorf("moving address book %q: %w", bookName, err)
+		}
+	}
+
+	return nil
+}

internal/store/migrate_test.go

@@ -0,0 +1,116 @@
+package store
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestMigrate(t *testing.T) {
+	tmpDir := t.TempDir()
+
+	// Create old structure
+	// WebDAV: files/<username>/
+	if err := os.MkdirAll(filepath.Join(tmpDir, "files", "alice"), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(tmpDir, "files", "alice", "test.txt"), []byte("test"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	// CalDAV: <username>/cal-<name>/
+	if err := os.MkdirAll(filepath.Join(tmpDir, "bob", "cal-work"), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(tmpDir, "bob", "cal-work", "evt.ics"), []byte("calendar"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	// CardDAV: <username>/card-<name>/
+	if err := os.MkdirAll(filepath.Join(tmpDir, "bob", "card-contacts"), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(tmpDir, "bob", "card-contacts", "vcard.vcf"), []byte("card"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	// Create store and migrate
+	st, err := NewStore(tmpDir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := st.Migrate(); err != nil {
+		t.Fatal(err)
+	}
+
+	// Verify WebDAV: <username>/files/
+	if _, err := os.Stat(filepath.Join(tmpDir, "alice", "files", "test.txt")); err != nil {
+		t.Errorf("alice files not migrated: %v", err)
+	}
+
+	// Verify CalDAV: <username>/calendars/<name>
+	if _, err := os.Stat(filepath.Join(tmpDir, "bob", "calendars", "work", "evt.ics")); err != nil {
+		t.Errorf("bob calendars not migrated: %v", err)
+	}
+
+	// Verify CardDAV: <username>/addressbooks/<name>
+	if _, err := os.Stat(filepath.Join(tmpDir, "bob", "addressbooks", "contacts", "vcard.vcf")); err != nil {
+		t.Errorf("bob addressbooks not migrated: %v", err)
+	}
+
+	// Verify old structure is gone
+	if _, err := os.Stat(filepath.Join(tmpDir, "files", "alice")); err == nil {
+		t.Error("old files directory not removed")
+	}
+	if _, err := os.Stat(filepath.Join(tmpDir, "bob", "cal-work")); err == nil {
+		t.Error("old cal- directory not removed")
+	}
+	if _, err := os.Stat(filepath.Join(tmpDir, "bob", "card-contacts")); err == nil {
+		t.Error("old card- directory not removed")
+	}
+}
+
+func TestMigrateIdempotent(t *testing.T) {
+	tmpDir := t.TempDir()
+
+	// Create new structure
+	if err := os.MkdirAll(filepath.Join(tmpDir, "alice", "files"), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(tmpDir, "alice", "files", "test.txt"), []byte("test"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	st, err := NewStore(tmpDir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Run migration twice
+	if err := st.Migrate(); err != nil {
+		t.Fatal(err)
+	}
+	if err := st.Migrate(); err != nil {
+		t.Fatal(err)
+	}
+
+	// Verify data still there
+	if _, err := os.Stat(filepath.Join(tmpDir, "alice", "files", "test.txt")); err != nil {
+		t.Errorf("data not preserved: %v", err)
+	}
+}
+
+func TestMigrateMissingDirectories(t *testing.T) {
+	tmpDir := t.TempDir()
+
+	st, err := NewStore(tmpDir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Should not error on empty directory
+	if err := st.Migrate(); err != nil {
+		t.Errorf("unexpected error: %v", err)
+	}
+}

internal/store/store.go

@@ -48,9 +48,26 @@ func (s *Store) lockFor(user string) *sync.RWMutex {
 	return l
 }
 
-// collectionPath returns the filesystem path for a collection.
+// collectionPath returns the filesystem path for a collection in the new unified format.
+// Calendar collections: <username>/calendars/<name>
+// Address book collections: <username>/addressbooks/<name>
+// WebDAV collections: <username>/files (all files in one directory)
 func (s *Store) collectionPath(user, collection string) string {
-	return filepath.Join(s.rootDir, sanitize(user), sanitize(collection))
+	userDir := filepath.Join(s.rootDir, sanitize(user))
+
+	if strings.HasPrefix(collection, "cal-") {
+		return filepath.Join(userDir, "calendars", strings.TrimPrefix(collection, "cal-"))
+	}
+
+	if strings.HasPrefix(collection, "card-") {
+		return filepath.Join(userDir, "addressbooks", strings.TrimPrefix(collection, "card-"))
+	}
+
+	if collection == "files" {
+		return filepath.Join(userDir, "files")
+	}
+
+	return filepath.Join(userDir, sanitize(collection))
 }
 
 // objectPath returns the filesystem path for an object within a collection.
@@ -68,6 +85,7 @@ func (s *Store) EnsureCollection(user, collection string) error {
 }
 
 // ListCollections returns all collection names for a user.
+// Returns both old-style (cal-*, card-*) and new-style (calendars/*, addressbooks/*) collections.
 func (s *Store) ListCollections(user string) ([]string, error) {
 	l := s.lockFor(user)
 	l.RLock()
@@ -85,7 +103,8 @@ func (s *Store) ListCollections(user string) ([]string, error) {
 	var names []string
 	for _, e := range entries {
 		if e.IsDir() {
-			names = append(names, e.Name())
+			name := e.Name()
+			names = append(names, name)
 		}
 	}
 	return names, nil

internal/store/store_test.go

@@ -6,7 +6,7 @@ import (
 	"sync"
 	"testing"
 
-	"github.com/yourusername/caldav-server/internal/store"
+	"git.arnef.de/arnef/nidus/internal/store"
 )
 
 func TestStoreRoundTrip(t *testing.T) {

internal/web/account.go

@@ -6,8 +6,8 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/web/templates"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 )
 
 // handleAccount serves GET /account: the current user's own profile and

internal/web/calendar.go

@@ -15,11 +15,13 @@ import (
 	"strings"
 	"time"
 
+	"git.arnef.de/arnef/nidus/internal/birthdays"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/icalfix"
+	"git.arnef.de/arnef/nidus/internal/icssub"
+	"git.arnef.de/arnef/nidus/internal/store"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 	ical "github.com/emersion/go-ical"
-	"github.com/yourusername/caldav-server/internal/birthdays"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/icalfix"
-	"github.com/yourusername/caldav-server/internal/web/templates"
 )
 
 // eventIDRe validates an event's object ID as it appears in a URL path
@@ -527,7 +529,6 @@ func mondayOf(t time.Time) time.Time {
 	return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location()).AddDate(0, 0, -offset)
 }
 
-
 // eventDayRange returns the inclusive [start, end] calendar-day span an
 // event occupies, in loc, for placing it on the month grid.
 func eventDayRange(form templates.EventFormData, loc *time.Location) (start, end time.Time, err error) {
@@ -637,6 +638,108 @@ func newEventFormDefaults(calRef, dateParam string) templates.EventFormData {
 	}
 }
 
+// handleEventView renders the read-only detail view for a single event. It
+// is the landing page when a user clicks an event in the month/week grid;
+// writable calendars link from here to the edit page.
+func (s *Server) handleEventView(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		w.Header().Set("Allow", "GET")
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+	username := userFromContext(r.Context())
+	ref := r.PathValue("ref")
+	id := r.PathValue("id")
+
+	// For ICS subscriptions, ref is "!<name>" and id is the stable
+	// icssub.EventID (already ".ics"-suffixed). For regular calendars,
+	// ref is a bare name or "owner~name" and id is a "<hex>.ics" filename
+	// from the eventIDRe character set. Both shapes share the same
+	// "hex/alnum .ics" shape, so we only need the regex check.
+	if !eventIDRe.MatchString(id) {
+		http.NotFound(w, r)
+		return
+	}
+	color, form, err := s.eventForDisplay(username, ref, id)
+	if errors.Is(err, store.ErrNotFound) || errors.Is(err, errCalendarNotFound) {
+		http.NotFound(w, r)
+		return
+	}
+	if err != nil {
+		s.handleCalRefError(w, r, err)
+		return
+	}
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	_ = templates.EventDetail(username, templates.EventDetailData{Form: form, Color: color}).Render(context.Background(), w)
+}
+
+// eventForDisplay resolves a calendar reference for read access, loads and
+// decodes the event with the given id, populates the form's display fields
+// (CalRef, CalendarLabel, Writable), and returns the calendar's color for
+// the detail view's header dot. It handles both ordinary (stored) events
+// and ICS-subscription events (ref "!<name>").
+func (s *Server) eventForDisplay(username, ref, id string) (color string, form templates.EventFormData, err error) {
+	if strings.HasPrefix(ref, icsRefPrefix) {
+		return s.icsEventForDisplay(username, ref, id)
+	}
+	owner, name, err := s.resolveCalRef(username, ref, false)
+	if err != nil {
+		return "", form, err
+	}
+	data, err := s.store.GetObject(owner, "cal-"+name, id)
+	if err != nil {
+		return "", form, err
+	}
+	form, err = eventFormFromICS(id, data)
+	if err != nil {
+		s.logger.Error("decoding event", "error", err)
+		return "", form, err
+	}
+	form.CalRef = ref
+	label := name
+	if owner != username {
+		label = name + " (" + s.dbase.DisplayName(owner) + ")"
+	}
+	form.CalendarLabel = label
+	form.Writable = owner == username
+	if !form.Writable {
+		if share, err := s.dbase.CalendarShareFor(owner, name, username); err == nil {
+			form.Writable = share.Permission == db.PermWrite
+		}
+	}
+	color, _ = s.dbase.GetCalendarColor(owner, name)
+	return color, form, nil
+}
+
+// icsEventForDisplay resolves one of username's ICS subscriptions named
+// ref[len(!):] and looks up the event whose icssub.EventID hashes to id.
+// Returns the subscription's display color and a form with Writable=false.
+func (s *Server) icsEventForDisplay(username, ref, id string) (color string, form templates.EventFormData, err error) {
+	name := strings.TrimPrefix(ref, icsRefPrefix)
+	sub, err := s.dbase.GetICSSubscription(username, name)
+	if err != nil {
+		return "", form, errCalendarNotFound
+	}
+	cal, err := s.icsCache.Get(sub.URL)
+	if err != nil {
+		return "", form, err
+	}
+	for _, ev := range cal.Events() {
+		if icssub.EventID(ev) != id {
+			continue
+		}
+		form, err = eventFormFromComponent(id, ev)
+		if err != nil {
+			return "", form, err
+		}
+		form.CalRef = ref
+		form.CalendarLabel = name
+		form.Writable = false
+		return sub.Color, form, nil
+	}
+	return "", form, errCalendarNotFound
+}
+
 func (s *Server) handleEventEdit(w http.ResponseWriter, r *http.Request) {
 	username := userFromContext(r.Context())
 	ref := r.PathValue("ref")
@@ -1200,11 +1303,11 @@ func (s *Server) addBirthdayEvents(username string, entry calendarEntry, gridSta
 }
 
 // addICSEvents fetches entry's remote ICS/webcal calendar (via s.icsCache,
-// which caches it for a while so every month-view render doesn't re-fetch
-// from origin) and places each VEVENT's occurrence onto the month grid,
-// the same way a stored calendar object would be. There's no per-event
-// edit page for these (the source is external and read-only), so each
-// event's LinkURL is left pointing nowhere useful ("#").
+// which uses stale-while-revalidate so a month-view render never blocks on
+// network I/O) and places each VEVENT's occurrence onto the month grid,
+// the same way a stored calendar object would be. Each event's ID is the
+// stable icssub.EventID hash, which routes through the read-only detail
+// page (eventForDisplay → icsEventForDisplay).
 func (s *Server) addICSEvents(entry calendarEntry, gridStart, gridEnd time.Time, loc *time.Location, dayIndex map[string]int, days []templates.MonthDay) error {
 	cal, err := s.icsCache.Get(entry.ICSURL)
 	if err != nil {
@@ -1212,8 +1315,11 @@ func (s *Server) addICSEvents(entry calendarEntry, gridStart, gridEnd time.Time,
 	}
 
 	const totalDays = 42
-	for i, ev := range cal.Events() {
-		id := fmt.Sprintf("ics-%d", i)
+	for _, ev := range cal.Events() {
+		id := icssub.EventID(ev)
+		if id == "" {
+			continue
+		}
 		form, err := eventFormFromComponent(id, ev)
 		if err != nil {
 			continue
@@ -1247,7 +1353,6 @@ func (s *Server) addICSEvents(entry calendarEntry, gridStart, gridEnd time.Time,
 				Summary:  form.Summary,
 				TimeText: timeText,
 				AllDay:   form.AllDay,
-				LinkURL:  "#",
 			})
 		}
 	}

internal/web/contacts.go

@@ -15,9 +15,9 @@ import (
 	"strconv"
 	"strings"
 
+	"git.arnef.de/arnef/nidus/internal/store"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 	vcard "github.com/emersion/go-vcard"
-	"github.com/yourusername/caldav-server/internal/store"
-	"github.com/yourusername/caldav-server/internal/web/templates"
 )
 
 // contactIDRe validates a contact's object ID as it appears in a URL path
@@ -239,7 +239,8 @@ func (s *Server) handleContactEdit(w http.ResponseWriter, r *http.Request) {
 // contactFormInput holds the parsed, validated-ish values submitted by the
 // contact form, before they're translated into vCard fields.
 type contactFormInput struct {
-	FullName     string
+	Forename     string
+	Surname      string
 	Organization string
 	Note         string
 	Birthday     string
@@ -284,7 +285,8 @@ func parseContactForm(r *http.Request) (contactFormInput, error) {
 	get := func(key string) []string { return form[key] }
 
 	in := contactFormInput{
-		FullName:     strings.TrimSpace(formValue(get("full_name"), 0)),
+		Forename:     strings.TrimSpace(formValue(get("forename"), 0)),
+		Surname:      strings.TrimSpace(formValue(get("surname"), 0)),
 		Organization: strings.TrimSpace(formValue(get("organization"), 0)),
 		Note:         strings.TrimSpace(formValue(get("note"), 0)),
 		Birthday:     strings.TrimSpace(formValue(get("birthday"), 0)),
@@ -309,25 +311,13 @@ func parseContactForm(r *http.Request) (contactFormInput, error) {
 		in.Emails = append(in.Emails, templates.LabeledValue{Type: formValue(emailTypes, i), Value: v})
 	}
 
-	addrTypes := get("address_type")
-	streets := get("address_street")
-	cities := get("address_city")
-	postalCodes := get("address_postal_code")
-	regions := get("address_region")
-	countries := get("address_country")
-	for i := range streets {
-		street := strings.TrimSpace(formValue(streets, i))
-		city := strings.TrimSpace(formValue(cities, i))
-		postalCode := strings.TrimSpace(formValue(postalCodes, i))
-		region := strings.TrimSpace(formValue(regions, i))
-		country := strings.TrimSpace(formValue(countries, i))
-		if street == "" && city == "" && postalCode == "" && region == "" && country == "" {
+	addrTypes, addrValues := get("address_type"), get("address_value")
+	for i, v := range addrValues {
+		v = strings.TrimSpace(v)
+		if v == "" {
 			continue
 		}
-		in.Addresses = append(in.Addresses, templates.AddressValue{
-			Type: formValue(addrTypes, i), Street: street, City: city,
-			Region: region, PostalCode: postalCode, Country: country,
-		})
+		in.Addresses = append(in.Addresses, templates.AddressValue{Type: formValue(addrTypes, i), Value: v})
 	}
 
 	if r.MultipartForm != nil {
@@ -358,11 +348,12 @@ func (s *Server) saveContactFromForm(w http.ResponseWriter, r *http.Request, use
 		return
 	}
 
-	if in.FullName == "" {
+	if in.Forename == "" && in.Surname == "" {
 		form := templates.ContactFormData{
 			Book:         book,
 			ID:           id,
-			FullName:     in.FullName,
+			Forename:     in.Forename,
+			Surname:      in.Surname,
 			Organization: in.Organization,
 			Note:         in.Note,
 			Birthday:     in.Birthday,
@@ -371,7 +362,7 @@ func (s *Server) saveContactFromForm(w http.ResponseWriter, r *http.Request, use
 			Addresses:    ensureAtLeastOne(in.Addresses),
 		}
 		w.Header().Set("Content-Type", "text/html; charset=utf-8")
-		_ = templates.ContactForm(username, form, "Full name is required").Render(context.Background(), w)
+		_ = templates.ContactForm(username, form, "Name is required").Render(context.Background(), w)
 		return
 	}
 
@@ -422,16 +413,10 @@ func buildCard(uid string, in contactFormInput, existingPhoto string) vcard.Card
 	if uid != "" {
 		card.SetValue(vcard.FieldUID, uid)
 	}
-	card.SetValue(vcard.FieldFormattedName, in.FullName)
-
-	name := &vcard.Name{}
-	parts := strings.Fields(in.FullName)
-	if len(parts) > 0 {
-		name.GivenName = parts[0]
-	}
-	if len(parts) > 1 {
-		name.FamilyName = strings.Join(parts[1:], " ")
+	if fn := strings.TrimSpace(in.Forename + " " + in.Surname); fn != "" {
+		card.SetValue(vcard.FieldFormattedName, fn)
 	}
+	name := &vcard.Name{GivenName: in.Forename, FamilyName: in.Surname}
 	card.SetName(name)
 
 	if in.Organization != "" {
@@ -459,14 +444,7 @@ func buildCard(uid string, in contactFormInput, existingPhoto string) vcard.Card
 		card.Add(vcard.FieldEmail, f)
 	}
 	for _, a := range in.Addresses {
-		addr := &vcard.Address{
-			Field:         &vcard.Field{},
-			StreetAddress: a.Street,
-			Locality:      a.City,
-			Region:        a.Region,
-			PostalCode:    a.PostalCode,
-			Country:       a.Country,
-		}
+		addr := &vcard.Address{Field: &vcard.Field{}, StreetAddress: a.Value}
 		if a.Type != "" {
 			addr.Params = vcard.Params{vcard.ParamType: {a.Type}}
 		}
@@ -533,10 +511,8 @@ func addressValues(card vcard.Card) []templates.AddressValue {
 		if a.Params != nil {
 			typ = a.Params.Get(vcard.ParamType)
 		}
-		out = append(out, templates.AddressValue{
-			Type: typ, Street: a.StreetAddress, City: a.Locality,
-			Region: a.Region, PostalCode: a.PostalCode, Country: a.Country,
-		})
+		value := strings.Join([]string{a.StreetAddress, a.Locality, a.Region, a.PostalCode, a.Country}, ", ")
+		out = append(out, templates.AddressValue{Type: typ, Value: value})
 	}
 	return out
 }
@@ -547,10 +523,22 @@ func contactFormFromCard(book, id string, data []byte) (templates.ContactFormDat
 	if err != nil {
 		return templates.ContactFormData{}, err
 	}
+	var forename, surname string
+	if n := card.Name(); n != nil && (n.GivenName != "" || n.FamilyName != "") {
+		forename, surname = n.GivenName, n.FamilyName
+	} else if fn := strings.TrimSpace(card.PreferredValue(vcard.FieldFormattedName)); fn != "" {
+		parts := strings.Fields(fn)
+		if len(parts) > 1 {
+			forename, surname = parts[0], strings.Join(parts[1:], " ")
+		} else {
+			forename = parts[0]
+		}
+	}
 	return templates.ContactFormData{
 		Book:         book,
 		ID:           id,
-		FullName:     card.PreferredValue(vcard.FieldFormattedName),
+		Forename:     forename,
+		Surname:      surname,
 		Organization: card.PreferredValue(vcard.FieldOrganization),
 		Note:         card.PreferredValue(vcard.FieldNote),
 		Birthday:     card.PreferredValue(vcard.FieldBirthday),

internal/web/dashboard.go

@@ -5,8 +5,8 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/web/templates"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 )
 
 func (s *Server) handleDashboard(w http.ResponseWriter, r *http.Request) {

internal/web/event_detail_test.go

@@ -0,0 +1,209 @@
+package web
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"git.arnef.de/arnef/nidus/internal/db"
+)
+
+// seedEvent stores an all-day event (one-day span) in owner's calendar cal
+// under object id, with the given summary/location/description. Used to set
+// up events that handleEventView should render.
+func seedEvent(t *testing.T, s *Server, owner, cal, id, summary, location, description string) {
+	t.Helper()
+	data := "BEGIN:VCALENDAR\r\n" +
+		"VERSION:2.0\r\n" +
+		"PRODID:-//nidus//test//EN\r\n" +
+		"BEGIN:VEVENT\r\n" +
+		"UID:" + strings.TrimSuffix(id, ".ics") + "\r\n" +
+		"DTSTAMP:20260101T000000Z\r\n" +
+		"SUMMARY:" + summary + "\r\n" +
+		"LOCATION:" + location + "\r\n" +
+		"DESCRIPTION:" + description + "\r\n" +
+		"DTSTART;VALUE=DATE:20260805\r\n" +
+		"DTEND;VALUE=DATE:20260806\r\n" +
+		"END:VEVENT\r\n" +
+		"END:VCALENDAR\r\n"
+	if err := s.store.PutObject(owner, "cal-"+cal, id, []byte(data)); err != nil {
+		t.Fatalf("PutObject: %v", err)
+	}
+}
+
+// getEventDetail issues GET /calendar/{ref}/{id} as the session identified by
+// cookie and returns the recorded response.
+func getEventDetail(t *testing.T, handler http.Handler, cookie *http.Cookie, ref, id string) *httptest.ResponseRecorder {
+	t.Helper()
+	path := "/calendar/" + url.PathEscape(ref) + "/" + url.PathEscape(id)
+	req := httptest.NewRequest(http.MethodGet, path, nil)
+	req.AddCookie(cookie)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	return rr
+}
+
+func TestEventDetailShowsOwnEvent(t *testing.T) {
+	s := newTestServer(t)
+	handler := s.Handler(emptyStaticFS{})
+	cookie := loginAs(t, handler, "alice", "password")
+
+	id := "aabbccddeeff.ics"
+	seedEvent(t, s, "alice", "work", id, "Team standup", "Meetroom A", "Daily sync with the team")
+
+	rr := getEventDetail(t, handler, cookie, "work", id)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d: %s", rr.Code, rr.Body.String())
+	}
+	body := rr.Body.String()
+	for _, want := range []string{
+		"Team standup",             // summary / title
+		"Meetroom A",               // location
+		"Daily sync with the team", // description
+		"work",                     // calendar label
+		">Edit",                    // writable → Edit link present
+		"Export .ics",
+	} {
+		if !strings.Contains(body, want) {
+			t.Errorf("expected body to contain %q, got:\n%s", want, body)
+		}
+	}
+}
+
+func TestEventDetailReadOnlySharedHasNoEdit(t *testing.T) {
+	s := newTestServer(t)
+	handler := s.Handler(emptyStaticFS{})
+	aliceCookie := loginAs(t, handler, "alice", "password")
+	bobCookie := loginAs(t, handler, "bob", "password")
+
+	id := "123456.ics"
+	seedEvent(t, s, "bob", "personal", id, "Bob lunch", "Cafe", "Lunch plans")
+	if err := s.dbase.ShareCalendar("bob", "personal", "alice", db.PermRead); err != nil {
+		t.Fatalf("ShareCalendar: %v", err)
+	}
+
+	// alice (read share) can view but not edit.
+	rr := getEventDetail(t, handler, aliceCookie, "bob~personal", id)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("alice view: expected 200, got %d: %s", rr.Code, rr.Body.String())
+	}
+	body := rr.Body.String()
+	if !strings.Contains(body, "Bob lunch") {
+		t.Errorf("alice: expected body to contain summary, got:\n%s", body)
+	}
+	if !strings.Contains(body, "shared with you as read-only") {
+		t.Errorf("alice: expected read-only notice, got:\n%s", body)
+	}
+	if strings.Contains(body, ">Edit") {
+		t.Errorf("alice: Edit link should not be present on a read-only share, got:\n%s", body)
+	}
+
+	// bob (owner) can still see the Edit link.
+	rrBob := getEventDetail(t, handler, bobCookie, "personal", id)
+	if rrBob.Code != http.StatusOK {
+		t.Fatalf("bob view own: expected 200, got %d", rrBob.Code)
+	}
+	if !strings.Contains(rrBob.Body.String(), ">Edit") {
+		t.Errorf("bob: expected Edit link, got:\n%s", rrBob.Body.String())
+	}
+}
+
+func TestEventDetailWriteShareHasEditLink(t *testing.T) {
+	s := newTestServer(t)
+	handler := s.Handler(emptyStaticFS{})
+	cookie := loginAs(t, handler, "alice", "password")
+
+	seedEvent(t, s, "bob", "personal", "a1b2c3.ics", "Bob meeting", "Office", "Sync")
+	if err := s.dbase.ShareCalendar("bob", "personal", "alice", db.PermWrite); err != nil {
+		t.Fatalf("ShareCalendar: %v", err)
+	}
+	rr := getEventDetail(t, handler, cookie, "bob~personal", "a1b2c3.ics")
+	if rr.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d: %s", rr.Code, rr.Body.String())
+	}
+	body := rr.Body.String()
+	if !strings.Contains(body, ">Edit") {
+		t.Errorf("write share should expose Edit link, got:\n%s", body)
+	}
+	if strings.Contains(body, "shared with you as read-only") {
+		t.Errorf("write share should not show read-only notice, got:\n%s", body)
+	}
+}
+
+func TestEventDetailNotFound(t *testing.T) {
+	s := newTestServer(t)
+	handler := s.Handler(emptyStaticFS{})
+	cookie := loginAs(t, handler, "alice", "password")
+
+	// Valid calendar, missing object.
+	if rr := getEventDetail(t, handler, cookie, "work", "doesnotexist.ics"); rr.Code != http.StatusNotFound {
+		t.Fatalf("missing event: expected 404, got %d", rr.Code)
+	}
+	// Unknown calendar ref.
+	if rr := getEventDetail(t, handler, cookie, "does_not_exist", "0000.ics"); rr.Code != http.StatusNotFound {
+		t.Fatalf("unknown calendar: expected 404, got %d", rr.Code)
+	}
+	// Invalid id shape (rejected by eventIDRe before store access).
+	if rr := getEventDetail(t, handler, cookie, "work", "bad/../etc/passwd.ics"); rr.Code != http.StatusNotFound {
+		t.Fatalf("invalid id: expected 404, got %d", rr.Code)
+	}
+}
+
+func TestEventDetailRequiresLogin(t *testing.T) {
+	s := newTestServer(t)
+	handler := s.Handler(emptyStaticFS{})
+	req := httptest.NewRequest(http.MethodGet, "/calendar/work/anything.ics", nil)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	if rr.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect to login, got %d", rr.Code)
+	}
+}
+
+func TestEventDetailRejectsNonGet(t *testing.T) {
+	s := newTestServer(t)
+	handler := s.Handler(emptyStaticFS{})
+	cookie := loginAs(t, handler, "alice", "password")
+	req := httptest.NewRequest(http.MethodPost, "/calendar/work/anything.ics", nil)
+	req.AddCookie(cookie)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	if rr.Code != http.StatusMethodNotAllowed {
+		t.Fatalf("expected 405 for POST, got %d", rr.Code)
+	}
+}
+
+// TestEditRouteStillResolves guards against the new detail route
+// (/calendar/{ref}/{id}) shadowing the more specific edit/delete/export
+// routes under the same {ref}+{id} prefix in Go's ServeMux.
+func TestEditRouteStillResolves(t *testing.T) {
+	s := newTestServer(t)
+	handler := s.Handler(emptyStaticFS{})
+	cookie := loginAs(t, handler, "alice", "password")
+
+	id := "cafebabe00.ics"
+	seedEvent(t, s, "alice", "work", id, "Edit me", "Room", "Note")
+
+	// GET the edit form — must still hit handleEventEdit, not the detail view.
+	req := httptest.NewRequest(http.MethodGet, "/calendar/work/cafebabe00.ics/edit", nil)
+	req.AddCookie(cookie)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("edit GET: expected 200, got %d: %s", rr.Code, rr.Body.String())
+	}
+	if !strings.Contains(rr.Body.String(), "Edit event") || !strings.Contains(rr.Body.String(), "<form") {
+		t.Fatalf("expected the edit form to render, got:\n%s", rr.Body.String())
+	}
+
+	// The delete route still works (redirect to /web/calendar on success).
+	req = httptest.NewRequest(http.MethodPost, "/calendar/work/cafebabe00.ics/delete", nil)
+	req.AddCookie(cookie)
+	rr = httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	if rr.Code != http.StatusSeeOther {
+		t.Fatalf("delete: expected 303 redirect, got %d: %s", rr.Code, rr.Body.String())
+	}
+}

internal/web/files.go

@@ -12,7 +12,7 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/yourusername/caldav-server/internal/web/templates"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 )
 
 // maxUploadMemory bounds how much of a multipart upload is buffered in
@@ -24,7 +24,7 @@ const maxUploadMemory = 32 << 20 // 32 MiB
 // (internal/webdav) serves at /files/, so the web UI is just another view
 // onto the same files.
 func (s *Server) filesRoot(username string) string {
-	return filepath.Join(s.cfg.Storage.DataDir, "files", username)
+	return filepath.Join(s.cfg.Storage.DataDir, username, "files")
 }
 
 // sanitizeRelPath cleans a slash-separated relative path (as received from
@@ -142,7 +142,7 @@ func (s *Server) handleFilesMkdir(w http.ResponseWriter, r *http.Request, root,
 	}
 	name := strings.TrimSpace(r.PostForm.Get("name"))
 	if !resourceNameRe.MatchString(name) {
-		http.Error(w, "name must be 1-64 letters, digits, '-' or '_'", http.StatusBadRequest)
+		http.Error(w, "name must be 1-64 letters, digits, dots, '-' or '_'", http.StatusBadRequest)
 		return
 	}
 
@@ -211,6 +211,16 @@ func (s *Server) handleFilesGet(w http.ResponseWriter, r *http.Request, username
 		return
 	}
 
+	// Determine sort order (name asc/desc) from query param, default to asc
+	sortBy := r.URL.Query().Get("sort_by")
+	sortDir := r.URL.Query().Get("sort_dir")
+	if sortBy == "" {
+		sortBy = "name"
+	}
+	if sortDir == "" {
+		sortDir = "asc"
+	}
+
 	// os.ReadDir already returns entries sorted by filename, so filtering
 	// into two passes keeps each group (directories, then files)
 	// alphabetically sorted while grouping directories first.
@@ -234,6 +244,40 @@ func (s *Server) handleFilesGet(w http.ResponseWriter, r *http.Request, username
 			files = append(files, entry)
 		}
 	}
+
+	// Sort entries based on sortBy and sortDir
+	less := func(i, j templates.FileEntry) bool {
+		switch sortBy {
+		case "name":
+			if sortDir == "desc" {
+				return i.Name > j.Name
+			}
+			return i.Name < j.Name
+		default:
+			if sortDir == "desc" {
+				return i.ModTime > j.ModTime
+			}
+			return i.ModTime < j.ModTime
+		}
+	}
+
+	// Sort dirs
+	for i := 0; i < len(dirs)-1; i++ {
+		for j := i + 1; j < len(dirs); j++ {
+			if less(dirs[j], dirs[i]) {
+				dirs[i], dirs[j] = dirs[j], dirs[i]
+			}
+		}
+	}
+	// Sort files
+	for i := 0; i < len(files)-1; i++ {
+		for j := i + 1; j < len(files); j++ {
+			if less(files[j], files[i]) {
+				files[i], files[j] = files[j], files[i]
+			}
+		}
+	}
+
 	entries := append(dirs, files...)
 
 	var breadcrumbs []templates.Breadcrumb
@@ -248,7 +292,7 @@ func (s *Server) handleFilesGet(w http.ResponseWriter, r *http.Request, username
 	}
 
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	_ = templates.FilesPage(username, breadcrumbs, entries, relPath).Render(context.Background(), w)
+	_ = templates.FilesPage(username, breadcrumbs, entries, relPath, sortBy, sortDir).Render(context.Background(), w)
 }
 
 func (s *Server) handleFilesUpload(w http.ResponseWriter, r *http.Request, root, fullPath string) {

internal/web/ics.go

@@ -5,8 +5,8 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/web/templates"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 )
 
 // icsURLValid does a light sanity check on a subscription URL: it must be

internal/web/ics_detail_test.go

@@ -0,0 +1,176 @@
+package web
+
+import (
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/icssub"
+	"git.arnef.de/arnef/nidus/internal/store"
+	ical "github.com/emersion/go-ical"
+)
+
+// icsDetailSample is a minimal valid ICS feed with one VEVENT on Aug 5, 2026.
+const icsDetailSample = "BEGIN:VCALENDAR\r\n" +
+	"VERSION:2.0\r\n" +
+	"PRODID:-//nidus//test//EN\r\n" +
+	"BEGIN:VEVENT\r\n" +
+	"UID:detail1@nidus.test\r\n" +
+	"DTSTAMP:20260101T000000Z\r\n" +
+	"DTSTART:20260805T090000Z\r\n" +
+	"DTEND:20260805T100000Z\r\n" +
+	"SUMMARY:ICS detail event\r\n" +
+	"END:VEVENT\r\n" +
+	"END:VCALENDAR\r\n"
+
+// newServerWithICSCache builds a Server wired to an upstream ICS server
+// (for deterministic tests) and returns it, sharing one icssub.Cache the
+// same way cmd/server/main.go does in production.
+func newServerWithICSCache(t *testing.T, upstreamURL string) *Server {
+	t.Helper()
+	dir := t.TempDir()
+	st, err := store.NewStore(filepath.Join(dir, "data"))
+	if err != nil {
+		t.Fatalf("NewStore: %v", err)
+	}
+	d, err := db.Open(filepath.Join(dir, "test.db"))
+	if err != nil {
+		t.Fatalf("db.Open: %v", err)
+	}
+	t.Cleanup(func() { d.Close() })
+
+	cfg := &config.Config{}
+	if err := d.CreateUser("alice", "password", "", ""); err != nil {
+		t.Fatalf("CreateUser: %v", err)
+	}
+	if err := d.CreateICSSubscription("alice", "holidays", upstreamURL, "#123abc"); err != nil {
+		t.Fatalf("CreateICSSubscription: %v", err)
+	}
+	shared := icssub.NewCache(time.Hour)
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	return NewServer(cfg, st, d, logger, shared)
+}
+
+// TestICSDetailRouteRendersReadonlyEvent verifies the full ICS detail path:
+// the user clicks an ICS event from the month/week grid, the browser lands
+// on GET /calendar/!holidays/<icssub.EventID>/, and the handler returns 200
+// with the event's fields rendered and NO Edit link (ICS subs are read-only).
+func TestICSDetailRouteRendersReadonlyEvent(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(icsDetailSample))
+	}))
+	defer srv.Close()
+
+	s := newServerWithICSCache(t, srv.URL)
+	handler := s.Handler(emptyStaticFS{})
+	cookie := loginAs(t, handler, "alice", "password")
+
+	id := icssub.EventID(mustParseICS(t, icsDetailSample))
+	if id == "" {
+		t.Fatal("EventID must be non-empty")
+	}
+
+	req := httptest.NewRequest(http.MethodGet, "/calendar/"+url.PathEscape("!holidays")+"/"+id, nil)
+	req.AddCookie(cookie)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d: %s", rr.Code, rr.Body.String())
+	}
+	body := rr.Body.String()
+	for _, want := range []string{
+		"ICS detail event", // summary
+		"holidays",         // calendar label
+	} {
+		if !strings.Contains(body, want) {
+			t.Errorf("expected body to contain %q, got:\n%s", want, body)
+		}
+	}
+	if strings.Contains(body, ">Edit") {
+		t.Errorf("Edit link should not be present on a read-only ICS detail page, got:\n%s", body)
+	}
+}
+
+// TestICSDetailRouteBadIDReturns404 verifies a request with a malformed
+// event ID (missing .ics suffix) gets a 404 rather than rendering.
+func TestICSDetailRouteBadIDReturns404(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_, _ = w.Write([]byte(icsDetailSample))
+	}))
+	defer srv.Close()
+
+	s := newServerWithICSCache(t, srv.URL)
+	handler := s.Handler(emptyStaticFS{})
+	cookie := loginAs(t, handler, "alice", "password")
+
+	req := httptest.NewRequest(http.MethodGet, "/calendar/!holidays/not-a-valid-id", nil)
+	req.AddCookie(cookie)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	if rr.Code != http.StatusNotFound {
+		t.Fatalf("expected 404 for malformed event id, got %d", rr.Code)
+	}
+}
+
+// TestMonthGridLinksICSEventToDetailPage exercises the full user path: the
+// month/week grid renders an ICS-subscription event as a link to a detail
+// page (not "#" and not a direct edit URL).
+func TestMonthGridLinksICSEventToDetailPage(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(icsDetailSample))
+	}))
+	defer srv.Close()
+
+	s := newServerWithICSCache(t, srv.URL)
+	handler := s.Handler(emptyStaticFS{})
+	cookie := loginAs(t, handler, "alice", "password")
+
+	req := httptest.NewRequest(http.MethodGet, "/calendar?year=2026&month=8", nil)
+	req.AddCookie(cookie)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d: %s", rr.Code, rr.Body.String())
+	}
+	body := rr.Body.String()
+	if !strings.Contains(body, "ICS detail event") {
+		t.Fatalf("month grid should list ICS events, got:\n%s", body)
+	}
+	id := icssub.EventID(mustParseICS(t, icsDetailSample))
+	// The grid renders the detail link with a "/web/calendar/!<ref>/<id>"
+	// shape (see eventLinkURL in calendar.templ). The "!" in the ref is
+	// not %-escaped by templ.URL — we observed un-escaped output in the
+	// rendered HTML and pin the exact shape below.
+	wantHref := "href=\"/web/calendar/!holidays/" + id + "\""
+	if !strings.Contains(body, wantHref) {
+		t.Fatalf("month grid should link ICS event to %q, but did not", wantHref)
+	}
+	if strings.Contains(body, `href="#"`) {
+		t.Fatalf("ICS events should not link to '#'")
+	}
+}
+
+// mustParseICS parses raw and returns its first VEVENT (panic on error).
+func mustParseICS(t *testing.T, raw string) ical.Event {
+	t.Helper()
+	cal, err := ical.NewDecoder(strings.NewReader(raw)).Decode()
+	if err != nil {
+		t.Fatalf("ical decode: %v", err)
+	}
+	evs := cal.Events()
+	if len(evs) == 0 {
+		t.Fatal("no events in ICS")
+	}
+	return evs[0]
+}

internal/web/render.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"net/http"
 
-	"github.com/yourusername/caldav-server/internal/web/templates"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 )
 
 func renderLogin(w http.ResponseWriter, errMsg string) {

internal/web/resources.go

@@ -6,13 +6,14 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/web/templates"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 )
 
 // resourceNameRe restricts calendar/address book names to characters that
 // are safe as both a URL path segment and a filesystem directory name.
-var resourceNameRe = regexp.MustCompile(`^[a-zA-Z0-9_-]{1,64}$`)
+// Includes dots for hidden files/folders (Unix convention).
+var resourceNameRe = regexp.MustCompile(`^[a-zA-Z0-9._-]{1,64}$`)
 
 // hexColorRe validates the 6-digit hex color format produced by an HTML
 // <input type="color">, e.g. "#3b82f6".

internal/web/server.go

@@ -10,10 +10,10 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/icssub"
-	"github.com/yourusername/caldav-server/internal/store"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/icssub"
+	"git.arnef.de/arnef/nidus/internal/store"
 )
 
 // Server holds the dependencies needed by the web UI handlers.
@@ -25,9 +25,16 @@ type Server struct {
 	icsCache *icssub.Cache
 }
 
-// NewServer constructs a web UI Server.
-func NewServer(cfg *config.Config, st *store.Store, dbase *db.DB, logger *slog.Logger) *Server {
-	return &Server{cfg: cfg, store: st, dbase: dbase, logger: logger, icsCache: icssub.NewCache(icssub.DefaultTTL)}
+// NewServer constructs a web UI Server. icsCache may be nil, in which
+// case a private default-TTL cache is created — prefer sharing a single
+// *icssub.Cache with the CALDAV/CardDAV backends (e.g. from
+// cmd/server/main.go) so the web calendar page and the DAV protocol
+// serve identical events for the same ICS subscription.
+func NewServer(cfg *config.Config, st *store.Store, dbase *db.DB, logger *slog.Logger, icsCache *icssub.Cache) *Server {
+	if icsCache == nil {
+		icsCache = icssub.NewCache(icssub.DefaultTTL)
+	}
+	return &Server{cfg: cfg, store: st, dbase: dbase, logger: logger, icsCache: icsCache}
 }
 
 // Handler returns the http.Handler serving the web UI, mounted at "/web/"
@@ -65,6 +72,7 @@ func (s *Server) Handler(staticFS http.FileSystem) http.Handler {
 	mux.HandleFunc("/calendar", s.requireLogin(s.handleCalendarMonth))
 	mux.HandleFunc("/calendar/week", s.requireLogin(s.handleCalendarWeek))
 	mux.HandleFunc("/calendar/new", s.requireLogin(s.handleEventNew))
+	mux.HandleFunc("/calendar/{ref}/{id}", s.requireLogin(s.handleEventView))
 	mux.HandleFunc("/calendar/{ref}/import", s.requireLogin(s.handleCalendarImport))
 	mux.HandleFunc("/calendar/{ref}/export", s.requireLogin(s.handleCalendarExportAll))
 	mux.HandleFunc("/calendar/{ref}/{id}/edit", s.requireLogin(s.handleEventEdit))

internal/web/server_test.go

@@ -11,9 +11,9 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/store"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/store"
 )
 
 func newTestServer(t *testing.T) *Server {
@@ -47,7 +47,7 @@ func newTestServer(t *testing.T) *Server {
 		t.Fatalf("CreateCalendar bob/personal: %v", err)
 	}
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
-	return NewServer(cfg, st, dbase, logger)
+	return NewServer(cfg, st, dbase, logger, nil)
 }
 
 // loginAs performs a login request against handler and returns the
@@ -316,4 +316,3 @@ func TestAccountChangePassword(t *testing.T) {
 		t.Fatal("expected password to have changed")
 	}
 }
-

internal/web/session.go

@@ -46,7 +46,7 @@ func (s *Server) setSessionCookie(w http.ResponseWriter, token string) {
 		Value:    token,
 		Path:     "/",
 		HttpOnly: true,
-		Secure:   s.cfg.TLS.Enabled,
+		Secure:   true,
 		SameSite: http.SameSiteLaxMode,
 		Expires:  time.Now().Add(7 * 24 * time.Hour),
 	})
@@ -58,7 +58,7 @@ func (s *Server) clearSessionCookie(w http.ResponseWriter) {
 		Value:    "",
 		Path:     "/",
 		HttpOnly: true,
-		Secure:   s.cfg.TLS.Enabled,
+		Secure:   true,
 		SameSite: http.SameSiteLaxMode,
 		MaxAge:   -1,
 	})

internal/web/shares.go

@@ -5,7 +5,7 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/yourusername/caldav-server/internal/web/templates"
+	"git.arnef.de/arnef/nidus/internal/web/templates"
 )
 
 // handleCalendarShare handles POST (create/update share) and DELETE

internal/web/templates/calendar.templ

@@ -3,6 +3,7 @@ package templates
 import "fmt"
 import "strconv"
 import "strings"
+import "time"
 
 // CalendarSummary is one calendar (own or shared) shown in the combined
 // month view's legend.
@@ -24,9 +25,9 @@ type EventSummary struct {
 	Summary  string
 	TimeText string // e.g. "14:00" or "" for all-day events
 	AllDay   bool
-	// LinkURL overrides the default "/web/calendar/{CalRef}/{ID}/edit"
-	// link target, used by virtual/read-only calendars (e.g. birthdays)
-	// that don't have an editable event object of their own.
+	// LinkURL overrides the default "/web/calendar/{CalRef}/{ID}" (detail
+	// view) link target, used by virtual/read-only calendars (e.g.
+	// birthdays) that don't have an editable event object of their own.
 	LinkURL string
 }
 
@@ -100,6 +101,14 @@ type EventFormData struct {
 	EndTime       string // "HH:MM", empty when AllDay
 }
 
+// EventDetailData is everything the read-only event detail view needs: the
+// decoded event itself (Form, including its ID/CalRef/Writable display
+// metadata) plus the calendar's color for the header dot.
+type EventDetailData struct {
+	Form  EventFormData
+	Color string // calendar color, "" if unset
+}
+
 templ MonthView(username string, data MonthViewData) {
 	@Layout("Calendar", username) {
 		<div class="flex items-center justify-between mb-6 gap-4 flex-wrap">
@@ -301,7 +310,7 @@ func eventLinkURL(ev EventSummary) string {
 	if ev.LinkURL != "" {
 		return ev.LinkURL
 	}
-	return "/web/calendar/" + ev.CalRef + "/" + ev.ID + "/edit"
+	return "/web/calendar/" + ev.CalRef + "/" + ev.ID
 }
 
 // eventTextColor returns a color derived from hex, darkened if needed so
@@ -355,6 +364,119 @@ func clampByte(v float64) int {
 
 
 
+// EventDetail is the read-only detail view for a single event, opened when
+// the user clicks an event in the month or week grid. It shows the
+// event's fields and, when the calendar is writable, offers an Edit link.
+templ EventDetail(username string, data EventDetailData) {
+	@Layout("Calendar", username) {
+		<div class="flex items-center justify-between gap-3 flex-wrap mb-6">
+			<a href="/web/calendar" class="text-sm text-indigo-600 hover:underline">&larr; Calendar</a>
+			<div class="flex items-center gap-3">
+				if data.Form.Writable {
+					<a href={ templ.URL("/web/calendar/" + data.Form.CalRef + "/" + data.Form.ID + "/edit") }
+						class="bg-indigo-600 text-white rounded-md px-3 py-1.5 text-sm font-medium hover:bg-indigo-700">
+						Edit
+					</a>
+				}
+				<a href={ templ.URL("/web/calendar/" + data.Form.CalRef + "/" + data.Form.ID + "/export") }
+					class="bg-white border border-gray-300 rounded-md px-3 py-1.5 text-sm font-medium text-gray-700 hover:bg-gray-50">
+					Export .ics
+				</a>
+			</div>
+		</div>
+
+		<div class="bg-white rounded-lg border border-gray-200 p-6 max-w-2xl">
+			<div class="flex items-start gap-3 border-b border-gray-100 pb-5 mb-5">
+				<span class="w-3 h-3 rounded-full mt-2 shrink-0 ring-1 ring-inset ring-black/10" style={ "background-color: " + colorOrDefault(data.Color) }></span>
+				<div class="min-w-0">
+					<h1 class="text-2xl font-semibold break-words leading-tight">{ data.Form.Summary }</h1>
+					<p class="text-sm text-gray-500 mt-1">{ data.Form.CalendarLabel }</p>
+				</div>
+			</div>
+
+			if !data.Form.Writable {
+				<p class="mb-5 text-sm text-amber-700 bg-amber-50 border border-amber-200 rounded px-3 py-2">
+					This calendar was shared with you as read-only — you can view this event but not change it.
+				</p>
+			}
+
+			<dl class="space-y-4">
+				<div>
+					<dt class="text-xs font-medium uppercase tracking-wide text-gray-400 mb-1">When</dt>
+					<dd class="text-base text-gray-900">{ eventRangeText(data.Form) }</dd>
+				</div>
+				if data.Form.Location != "" {
+					<div>
+						<dt class="text-xs font-medium uppercase tracking-wide text-gray-400 mb-1">Location</dt>
+						<dd class="text-base text-gray-900 break-words">{ data.Form.Location }</dd>
+					</div>
+				}
+				if data.Form.Description != "" {
+					<div>
+						<dt class="text-xs font-medium uppercase tracking-wide text-gray-400 mb-1">Description</dt>
+						<dd class="text-base text-gray-900 whitespace-pre-wrap break-words">{ data.Form.Description }</dd>
+					</div>
+				}
+			</dl>
+		</div>
+	}
+}
+
+// eventRangeText renders a human-readable "when" string for an event:
+// a single timed event reads "Aug 5, 2026, 14:00 – 15:00"; a multi-day
+// range reads "Aug 5 – 7, 2026"; a single all-day date reads
+// "August 5, 2026".
+func eventRangeText(f EventFormData) string {
+	if f.AllDay {
+		if f.StartDate != f.EndDate {
+			s, err := dateOnly(f.StartDate)
+			if err != nil {
+				return f.StartDate
+			}
+			e, err := dateOnly(f.EndDate)
+			if err != nil {
+				return f.EndDate
+			}
+			if s.Year() == e.Year() && s.Month() == e.Month() {
+				return fmt.Sprintf("%s – %s, %d", s.Format("Jan 2"), e.Format("2"), s.Year())
+			}
+			return fmt.Sprintf("%s – %s", s.Format("Jan 2, 2006"), e.Format("Jan 2, 2006"))
+		}
+		d, err := dateOnly(f.StartDate)
+		if err != nil {
+			return f.StartDate
+		}
+		return d.Format("January 2, 2006")
+	}
+
+	s, err := dateTime(f.StartDate, f.StartTime)
+	if err != nil {
+		return f.StartDate
+	}
+	e, err := dateTime(f.EndDate, f.EndTime)
+	if err != nil {
+		return s.Format("January 2, 2006, 15:04")
+	}
+	if s.Day() == e.Day() {
+		return fmt.Sprintf("%s, %s – %s", s.Format("January 2, 2006"), s.Format("15:04"), e.Format("15:04"))
+	}
+	if s.Year() == e.Year() && s.Month() == e.Month() {
+		return fmt.Sprintf("%s – %s, %d", s.Format("Jan 2, 15:04"), e.Format("15:04"), s.Year())
+	}
+	return fmt.Sprintf("%s – %s", s.Format("Jan 2, 2006, 15:04"), e.Format("Jan 2, 2006, 15:04"))
+}
+
+func dateOnly(ds string) (time.Time, error) {
+	return time.ParseInLocation("2006-01-02", ds, time.Local)
+}
+
+func dateTime(ds, ts string) (time.Time, error) {
+	if ts == "" {
+		return time.ParseInLocation("2006-01-02", ds, time.Local)
+	}
+	return time.ParseInLocation("2006-01-02T15:04", ds+"T"+ts, time.Local)
+}
+
 templ EventForm(username string, data EventFormData, errMsg string) {
 	@Layout("Calendar", username) {
 		<a href="/web/calendar" class="text-sm text-indigo-600 hover:underline">&larr; Calendar</a>

internal/web/templates/calendar_test.go

@@ -33,6 +33,54 @@ func TestEventTextColorDarkensLightColors(t *testing.T) {
 	}
 }
 
+// TestEventRangeText pins the human-readable "When" strings shown on the
+// event detail view so any change to date formatting is intentional.
+func TestEventRangeText(t *testing.T) {
+	cases := []struct {
+		name string
+		form EventFormData
+		want string
+	}{
+		{
+			name: "single allday date",
+			form: EventFormData{AllDay: true, StartDate: "2026-08-05", EndDate: "2026-08-05"},
+			want: "August 5, 2026",
+		},
+		{
+			name: "all-day multi-day same month",
+			form: EventFormData{AllDay: true, StartDate: "2026-08-05", EndDate: "2026-08-07"},
+			want: "Aug 5 – 7, 2026",
+		},
+		{
+			name: "all-day multi-day different months",
+			form: EventFormData{AllDay: true, StartDate: "2026-08-30", EndDate: "2026-09-02"},
+			want: "Aug 30, 2026 – Sep 2, 2026",
+		},
+		{
+			name: "timed same day",
+			form: EventFormData{AllDay: false, StartDate: "2026-08-05", StartTime: "14:00", EndDate: "2026-08-05", EndTime: "15:00"},
+			want: "August 5, 2026, 14:00 – 15:00",
+		},
+		{
+			name: "timed different days same month",
+			form: EventFormData{AllDay: false, StartDate: "2026-08-05", StartTime: "23:30", EndDate: "2026-08-06", EndTime: "01:00"},
+			want: "Aug 5, 23:30 – 01:00, 2026",
+		},
+		{
+			name: "timed different months",
+			form: EventFormData{AllDay: false, StartDate: "2026-08-31", StartTime: "10:00", EndDate: "2026-09-01", EndTime: "11:00"},
+			want: "Aug 31, 2026, 10:00 – Sep 1, 2026, 11:00",
+		},
+	}
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			if got := eventRangeText(c.form); got != c.want {
+				t.Errorf("eventRangeText(%+v) = %q, want %q", c.form, got, c.want)
+			}
+		})
+	}
+}
+
 func TestEventTextColorFallsBackForInvalidInput(t *testing.T) {
 	if got := eventTextColor(""); got != colorOrDefault("") {
 		t.Errorf("eventTextColor(\"\") = %s, want the same default colorOrDefault returns", got)

internal/web/templates/contacts.templ

@@ -26,14 +26,11 @@ type LabeledValue struct {
 	Value string
 }
 
-// AddressValue is one ADR entry with its TYPE parameter.
+// AddressValue is one ADR entry with its TYPE parameter; the full address
+// is captured as a single free-form string.
 type AddressValue struct {
 	Type  string
-	Street     string
-	City       string
-	Region     string
-	PostalCode string
-	Country    string
+	Value string
 }
 
 // ContactFormData pre-fills the create/edit contact form. Phones, Emails,
@@ -42,7 +39,8 @@ type AddressValue struct {
 type ContactFormData struct {
 	Book         string
 	ID           string // empty when creating a new contact
-	FullName     string
+	Forename     string
+	Surname      string
 	Organization string
 	Birthday     string // "YYYY-MM-DD", empty if not set
 	Note         string
@@ -158,49 +156,50 @@ templ ContactsList(username, book string, contacts []ContactSummary) {
 	}
 }
 
-// typeSelect renders the TYPE dropdown shared by phone/email/address rows.
+// typeSelect renders the TYPE dropdown shared by email/address rows.
 templ typeSelect(name, selected string) {
 	<select name={ name } class="rounded-md border-gray-300 border px-2 py-1.5 text-sm">
-		<option value="" selected?={ selected == "" }>Sonstige</option>
-		<option value="home" selected?={ selected == "home" }>Privat</option>
-		<option value="work" selected?={ selected == "work" }>Geschäftlich</option>
+		<option value="" selected?={ selected == "" }>Other</option>
+		<option value="home" selected?={ selected == "home" }>Home</option>
+		<option value="work" selected?={ selected == "work" }>Work</option>
+	</select>
+}
+
+// phoneTypeSelect renders the phone TYPE dropdown. An unspecified number is
+// shown as "Mobile" (the vCard "cell" type), matching how mobile clients
+// label a contact's main number.
+templ phoneTypeSelect(name, selected string) {
+	<select name={ name } class="rounded-md border-gray-300 border px-2 py-1.5 text-sm">
+		<option value="cell" selected?={ selected == "cell" || selected == "" }>Mobile</option>
+		<option value="home" selected?={ selected == "home" }>Home</option>
+		<option value="work" selected?={ selected == "work" }>Work</option>
 	</select>
 }
 
 templ phoneRow(p LabeledValue) {
 	<div class="form-row flex gap-2 items-center">
-		@typeSelect("phone_type", p.Type)
-		<input name="phone_value" type="tel" value={ p.Value } placeholder="Telefonnummer"
+		@phoneTypeSelect("phone_type", p.Type)
+		<input name="phone_value" type="tel" value={ p.Value } placeholder="Phone number"
 			class="flex-1 rounded-md border-gray-300 border px-2 py-1.5 text-sm"/>
-		<button type="button" class="remove-row-btn text-red-600 hover:underline text-xs shrink-0">Entfernen</button>
+		<button type="button" class="remove-row-btn text-red-600 hover:underline text-xs shrink-0">Remove</button>
 	</div>
 }
 
 templ emailRow(p LabeledValue) {
 	<div class="form-row flex gap-2 items-center">
 		@typeSelect("email_type", p.Type)
-		<input name="email_value" type="email" value={ p.Value } placeholder="E-Mail-Adresse"
+		<input name="email_value" type="email" value={ p.Value } placeholder="Email address"
 			class="flex-1 rounded-md border-gray-300 border px-2 py-1.5 text-sm"/>
-		<button type="button" class="remove-row-btn text-red-600 hover:underline text-xs shrink-0">Entfernen</button>
+		<button type="button" class="remove-row-btn text-red-600 hover:underline text-xs shrink-0">Remove</button>
 	</div>
 }
 
 templ addressRow(a AddressValue) {
-	<div class="form-row grid grid-cols-2 gap-2 items-start bg-gray-50 rounded-md p-3">
-		<div class="col-span-2">
+	<div class="form-row flex gap-2 items-center">
 		@typeSelect("address_type", a.Type)
-		</div>
-		<input name="address_street" type="text" value={ a.Street } placeholder="Straße und Hausnummer"
-			class="col-span-2 rounded-md border-gray-300 border px-2 py-1.5 text-sm"/>
-		<input name="address_city" type="text" value={ a.City } placeholder="Stadt"
-			class="rounded-md border-gray-300 border px-2 py-1.5 text-sm"/>
-		<input name="address_postal_code" type="text" value={ a.PostalCode } placeholder="PLZ"
-			class="rounded-md border-gray-300 border px-2 py-1.5 text-sm"/>
-		<input name="address_region" type="text" value={ a.Region } placeholder="Bundesland/Region"
-			class="rounded-md border-gray-300 border px-2 py-1.5 text-sm"/>
-		<input name="address_country" type="text" value={ a.Country } placeholder="Land"
-			class="rounded-md border-gray-300 border px-2 py-1.5 text-sm"/>
-		<button type="button" class="remove-row-btn text-red-600 hover:underline text-xs col-span-2 text-left">Entfernen</button>
+		<input name="address_value" type="text" value={ a.Value } placeholder="Street, city, postal code, country"
+			class="flex-1 rounded-md border-gray-300 border px-2 py-1.5 text-sm"/>
+		<button type="button" class="remove-row-btn text-red-600 hover:underline text-xs shrink-0">Remove</button>
 	</div>
 }
 
@@ -230,67 +229,74 @@ templ ContactForm(username string, data ContactFormData, errMsg string) {
 				<img id="photo-preview" src="" alt="" class="w-20 h-20 rounded-full object-cover hidden"/>
 				<div class="space-y-1">
 					<label class="cursor-pointer inline-block bg-white border border-gray-300 rounded-md px-3 py-1.5 text-sm font-medium text-gray-700 hover:bg-gray-50">
-						Foto wählen
+						Choose photo
 						<input id="photo-input" name="photo" type="file" accept="image/*" class="hidden"/>
 					</label>
 					if data.PhotoDataURL != "" {
 						<label class="flex items-center gap-1 text-xs text-gray-500">
 							<input id="remove-photo" name="remove_photo" type="checkbox" value="1"/>
-							Foto entfernen
+							Remove photo
 						</label>
 					}
 				</div>
 			</div>
 
+			<div class="grid grid-cols-1 sm:grid-cols-2 gap-3">
 				<div>
-				<label class="block text-sm font-medium text-gray-700">Full name</label>
-				<input name="full_name" type="text" required value={ data.FullName }
+					<label class="block text-sm font-medium text-gray-700">First name</label>
+					<input name="forename" type="text" value={ data.Forename }
 						class="mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm"/>
 				</div>
+				<div>
+					<label class="block text-sm font-medium text-gray-700">Last name</label>
+					<input name="surname" type="text" value={ data.Surname }
+						class="mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm"/>
+				</div>
+			</div>
 			<div>
 				<label class="block text-sm font-medium text-gray-700">Organization</label>
 				<input name="organization" type="text" value={ data.Organization }
 					class="mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm"/>
 			</div>
 			<div>
-				<label class="block text-sm font-medium text-gray-700">Geburtstag</label>
+				<label class="block text-sm font-medium text-gray-700">Birthday</label>
 				<input name="birthday" type="date" value={ data.Birthday }
 					class="mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm"/>
 			</div>
 
 			<div>
-				<label class="block text-sm font-medium text-gray-700 mb-2">Telefonnummern</label>
+				<label class="block text-sm font-medium text-gray-700 mb-2">Phones</label>
 				<div id="phones-container" class="space-y-2">
 					for _, p := range data.Phones {
 						@phoneRow(p)
 					}
 				</div>
 				<button type="button" data-add-target="phones-container" class="add-row-btn mt-2 text-sm text-indigo-600 hover:underline">
-					+ Telefonnummer hinzufügen
+					+ Add phone number
 				</button>
 			</div>
 
 			<div>
-				<label class="block text-sm font-medium text-gray-700 mb-2">E-Mail-Adressen</label>
+				<label class="block text-sm font-medium text-gray-700 mb-2">Emails</label>
 				<div id="emails-container" class="space-y-2">
 					for _, e := range data.Emails {
 						@emailRow(e)
 					}
 				</div>
 				<button type="button" data-add-target="emails-container" class="add-row-btn mt-2 text-sm text-indigo-600 hover:underline">
-					+ E-Mail-Adresse hinzufügen
+					+ Add email address
 				</button>
 			</div>
 
 			<div>
-				<label class="block text-sm font-medium text-gray-700 mb-2">Adressen</label>
+				<label class="block text-sm font-medium text-gray-700 mb-2">Addresses</label>
 				<div id="addresses-container" class="space-y-2">
 					for _, a := range data.Addresses {
 						@addressRow(a)
 					}
 				</div>
 				<button type="button" data-add-target="addresses-container" class="add-row-btn mt-2 text-sm text-indigo-600 hover:underline">
-					+ Adresse hinzufügen
+					+ Add address
 				</button>
 			</div>
 

internal/web/templates/contacts_templ.go

@@ -34,14 +34,11 @@ type LabeledValue struct {
 	Value string
 }
 
-// AddressValue is one ADR entry with its TYPE parameter.
+// AddressValue is one ADR entry with its TYPE parameter; the full address
+// is captured as a single free-form string.
 type AddressValue struct {
 	Type  string
-	Street     string
-	City       string
-	Region     string
-	PostalCode string
-	Country    string
+	Value string
 }
 
 // ContactFormData pre-fills the create/edit contact form. Phones, Emails,
@@ -50,7 +47,8 @@ type AddressValue struct {
 type ContactFormData struct {
 	Book         string
 	ID           string // empty when creating a new contact
-	FullName     string
+	Forename     string
+	Surname      string
 	Organization string
 	Birthday     string // "YYYY-MM-DD", empty if not set
 	Note         string
@@ -115,7 +113,7 @@ func ContactsHome(username string, books []AddressBookSummary) templ.Component {
 					var templ_7745c5c3_Var3 templ.SafeURL
 					templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + b.Name))
 					if templ_7745c5c3_Err != nil {
-						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 67, Col: 52}
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 65, Col: 52}
 					}
 					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
 					if templ_7745c5c3_Err != nil {
@@ -128,7 +126,7 @@ func ContactsHome(username string, books []AddressBookSummary) templ.Component {
 					var templ_7745c5c3_Var4 string
 					templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.JoinStringErrs(b.Name)
 					if templ_7745c5c3_Err != nil {
-						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 67, Col: 115}
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 65, Col: 115}
 					}
 					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var4))
 					if templ_7745c5c3_Err != nil {
@@ -141,7 +139,7 @@ func ContactsHome(username string, books []AddressBookSummary) templ.Component {
 					var templ_7745c5c3_Var5 string
 					templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.JoinStringErrs(fmt.Sprintf("%d contact(s)", b.Count))
 					if templ_7745c5c3_Err != nil {
-						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 68, Col: 73}
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 66, Col: 73}
 					}
 					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var5))
 					if templ_7745c5c3_Err != nil {
@@ -204,7 +202,7 @@ func avatar(photoDataURL, sizeClass string) templ.Component {
 			var templ_7745c5c3_Var8 string
 			templ_7745c5c3_Var8, templ_7745c5c3_Err = templ.ResolveAttributeValue(photoDataURL)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 81, Col: 25}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 79, Col: 25}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var8)
 			if templ_7745c5c3_Err != nil {
@@ -295,7 +293,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 			var templ_7745c5c3_Var14 string
 			templ_7745c5c3_Var14, templ_7745c5c3_Err = templ.JoinStringErrs(book)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 94, Col: 45}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 92, Col: 45}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var14))
 			if templ_7745c5c3_Err != nil {
@@ -308,7 +306,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 			var templ_7745c5c3_Var15 templ.SafeURL
 			templ_7745c5c3_Var15, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + book + "/new"))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 97, Col: 57}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 95, Col: 57}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var15))
 			if templ_7745c5c3_Err != nil {
@@ -321,7 +319,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 			var templ_7745c5c3_Var16 templ.SafeURL
 			templ_7745c5c3_Var16, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + book + "/export"))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 101, Col: 60}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 99, Col: 60}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var16))
 			if templ_7745c5c3_Err != nil {
@@ -334,7 +332,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 			var templ_7745c5c3_Var17 templ.SafeURL
 			templ_7745c5c3_Var17, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + book + "/import"))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 107, Col: 60}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 105, Col: 60}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var17))
 			if templ_7745c5c3_Err != nil {
@@ -360,7 +358,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 				var templ_7745c5c3_Var18 templ.SafeURL
 				templ_7745c5c3_Var18, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + book + "/" + c.ID + "/edit"))
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 137, Col: 75}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 135, Col: 75}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var18))
 				if templ_7745c5c3_Err != nil {
@@ -373,7 +371,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 				var templ_7745c5c3_Var19 string
 				templ_7745c5c3_Var19, templ_7745c5c3_Err = templ.JoinStringErrs(c.FullName)
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 137, Col: 130}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 135, Col: 130}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var19))
 				if templ_7745c5c3_Err != nil {
@@ -386,7 +384,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 				var templ_7745c5c3_Var20 string
 				templ_7745c5c3_Var20, templ_7745c5c3_Err = templ.JoinStringErrs(c.Organization)
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 139, Col: 92}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 137, Col: 92}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var20))
 				if templ_7745c5c3_Err != nil {
@@ -399,7 +397,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 				var templ_7745c5c3_Var21 string
 				templ_7745c5c3_Var21, templ_7745c5c3_Err = templ.JoinStringErrs(c.Phone)
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 140, Col: 91}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 138, Col: 91}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var21))
 				if templ_7745c5c3_Err != nil {
@@ -412,7 +410,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 				var templ_7745c5c3_Var22 string
 				templ_7745c5c3_Var22, templ_7745c5c3_Err = templ.JoinStringErrs(c.Email)
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 141, Col: 85}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 139, Col: 85}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var22))
 				if templ_7745c5c3_Err != nil {
@@ -425,7 +423,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 				var templ_7745c5c3_Var23 templ.SafeURL
 				templ_7745c5c3_Var23, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + book + "/" + c.ID + "/export"))
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 143, Col: 77}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 141, Col: 77}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var23))
 				if templ_7745c5c3_Err != nil {
@@ -438,7 +436,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 				var templ_7745c5c3_Var24 templ.SafeURL
 				templ_7745c5c3_Var24, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + book + "/" + c.ID + "/delete"))
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 144, Col: 96}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 142, Col: 96}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var24))
 				if templ_7745c5c3_Err != nil {
@@ -469,7 +467,7 @@ func ContactsList(username, book string, contacts []ContactSummary) templ.Compon
 	})
 }
 
-// typeSelect renders the TYPE dropdown shared by phone/email/address rows.
+// typeSelect renders the TYPE dropdown shared by email/address rows.
 func typeSelect(name, selected string) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
@@ -498,7 +496,7 @@ func typeSelect(name, selected string) templ.Component {
 		var templ_7745c5c3_Var26 string
 		templ_7745c5c3_Var26, templ_7745c5c3_Err = templ.ResolveAttributeValue(name)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 163, Col: 20}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 161, Col: 20}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var26)
 		if templ_7745c5c3_Err != nil {
@@ -514,7 +512,7 @@ func typeSelect(name, selected string) templ.Component {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, ">Sonstige</option> <option value=\"home\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, ">Other</option> <option value=\"home\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -524,7 +522,7 @@ func typeSelect(name, selected string) templ.Component {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, ">Privat</option> <option value=\"work\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, ">Home</option> <option value=\"work\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -534,7 +532,82 @@ func typeSelect(name, selected string) templ.Component {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, ">Geschäftlich</option></select>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, ">Work</option></select>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		return nil
+	})
+}
+
+// phoneTypeSelect renders the phone TYPE dropdown. An unspecified number is
+// shown as "Mobile" (the vCard "cell" type), matching how mobile clients
+// label a contact's main number.
+func phoneTypeSelect(name, selected string) templ.Component {
+	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
+		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
+		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
+			return templ_7745c5c3_CtxErr
+		}
+		templ_7745c5c3_Buffer, templ_7745c5c3_IsBuffer := templruntime.GetBuffer(templ_7745c5c3_W)
+		if !templ_7745c5c3_IsBuffer {
+			defer func() {
+				templ_7745c5c3_BufErr := templruntime.ReleaseBuffer(templ_7745c5c3_Buffer)
+				if templ_7745c5c3_Err == nil {
+					templ_7745c5c3_Err = templ_7745c5c3_BufErr
+				}
+			}()
+		}
+		ctx = templ.InitializeContext(ctx)
+		templ_7745c5c3_Var27 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var27 == nil {
+			templ_7745c5c3_Var27 = templ.NopComponent
+		}
+		ctx = templ.ClearChildren(ctx)
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "<select name=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var28 string
+		templ_7745c5c3_Var28, templ_7745c5c3_Err = templ.ResolveAttributeValue(name)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 172, Col: 20}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var28)
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "\" class=\"rounded-md border-gray-300 border px-2 py-1.5 text-sm\"><option value=\"cell\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		if selected == "cell" || selected == "" {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, " selected")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, ">Mobile</option> <option value=\"home\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		if selected == "home" {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, " selected")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, ">Home</option> <option value=\"work\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		if selected == "work" {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 44, " selected")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 45, ">Work</option></select>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -558,33 +631,33 @@ func phoneRow(p LabeledValue) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var27 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var27 == nil {
-			templ_7745c5c3_Var27 = templ.NopComponent
+		templ_7745c5c3_Var29 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var29 == nil {
+			templ_7745c5c3_Var29 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "<div class=\"form-row flex gap-2 items-center\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 46, "<div class=\"form-row flex gap-2 items-center\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = typeSelect("phone_type", p.Type).Render(ctx, templ_7745c5c3_Buffer)
+		templ_7745c5c3_Err = phoneTypeSelect("phone_type", p.Type).Render(ctx, templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "<input name=\"phone_value\" type=\"tel\" value=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 47, "<input name=\"phone_value\" type=\"tel\" value=\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var28 string
-		templ_7745c5c3_Var28, templ_7745c5c3_Err = templ.ResolveAttributeValue(p.Value)
+		var templ_7745c5c3_Var30 string
+		templ_7745c5c3_Var30, templ_7745c5c3_Err = templ.ResolveAttributeValue(p.Value)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 173, Col: 54}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 182, Col: 54}
 		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var28)
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var30)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, "\" placeholder=\"Telefonnummer\" class=\"flex-1 rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <button type=\"button\" class=\"remove-row-btn text-red-600 hover:underline text-xs shrink-0\">Entfernen</button></div>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 48, "\" placeholder=\"Phone number\" class=\"flex-1 rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <button type=\"button\" class=\"remove-row-btn text-red-600 hover:underline text-xs shrink-0\">Remove</button></div>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -608,12 +681,12 @@ func emailRow(p LabeledValue) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var29 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var29 == nil {
-			templ_7745c5c3_Var29 = templ.NopComponent
+		templ_7745c5c3_Var31 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var31 == nil {
+			templ_7745c5c3_Var31 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, "<div class=\"form-row flex gap-2 items-center\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 49, "<div class=\"form-row flex gap-2 items-center\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -621,20 +694,20 @@ func emailRow(p LabeledValue) templ.Component {
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, "<input name=\"email_value\" type=\"email\" value=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 50, "<input name=\"email_value\" type=\"email\" value=\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var30 string
-		templ_7745c5c3_Var30, templ_7745c5c3_Err = templ.ResolveAttributeValue(p.Value)
+		var templ_7745c5c3_Var32 string
+		templ_7745c5c3_Var32, templ_7745c5c3_Err = templ.ResolveAttributeValue(p.Value)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 182, Col: 56}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 191, Col: 56}
 		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var30)
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var32)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, "\" placeholder=\"E-Mail-Adresse\" class=\"flex-1 rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <button type=\"button\" class=\"remove-row-btn text-red-600 hover:underline text-xs shrink-0\">Entfernen</button></div>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 51, "\" placeholder=\"Email address\" class=\"flex-1 rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <button type=\"button\" class=\"remove-row-btn text-red-600 hover:underline text-xs shrink-0\">Remove</button></div>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -658,12 +731,12 @@ func addressRow(a AddressValue) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var31 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var31 == nil {
-			templ_7745c5c3_Var31 = templ.NopComponent
+		templ_7745c5c3_Var33 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var33 == nil {
+			templ_7745c5c3_Var33 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 44, "<div class=\"form-row grid grid-cols-2 gap-2 items-start bg-gray-50 rounded-md p-3\"><div class=\"col-span-2\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 52, "<div class=\"form-row flex gap-2 items-center\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -671,72 +744,20 @@ func addressRow(a AddressValue) templ.Component {
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 45, "</div><input name=\"address_street\" type=\"text\" value=\"")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var32 string
-		templ_7745c5c3_Var32, templ_7745c5c3_Err = templ.ResolveAttributeValue(a.Street)
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 193, Col: 59}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var32)
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 46, "\" placeholder=\"Straße und Hausnummer\" class=\"col-span-2 rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <input name=\"address_city\" type=\"text\" value=\"")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var33 string
-		templ_7745c5c3_Var33, templ_7745c5c3_Err = templ.ResolveAttributeValue(a.City)
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 195, Col: 55}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var33)
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 47, "\" placeholder=\"Stadt\" class=\"rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <input name=\"address_postal_code\" type=\"text\" value=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 53, "<input name=\"address_value\" type=\"text\" value=\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var34 string
-		templ_7745c5c3_Var34, templ_7745c5c3_Err = templ.ResolveAttributeValue(a.PostalCode)
+		templ_7745c5c3_Var34, templ_7745c5c3_Err = templ.ResolveAttributeValue(a.Value)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 197, Col: 68}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 200, Col: 57}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var34)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 48, "\" placeholder=\"PLZ\" class=\"rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <input name=\"address_region\" type=\"text\" value=\"")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var35 string
-		templ_7745c5c3_Var35, templ_7745c5c3_Err = templ.ResolveAttributeValue(a.Region)
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 199, Col: 59}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var35)
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 49, "\" placeholder=\"Bundesland/Region\" class=\"rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <input name=\"address_country\" type=\"text\" value=\"")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var36 string
-		templ_7745c5c3_Var36, templ_7745c5c3_Err = templ.ResolveAttributeValue(a.Country)
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 201, Col: 61}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var36)
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 50, "\" placeholder=\"Land\" class=\"rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <button type=\"button\" class=\"remove-row-btn text-red-600 hover:underline text-xs col-span-2 text-left\">Entfernen</button></div>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 54, "\" placeholder=\"Street, city, postal code, country\" class=\"flex-1 rounded-md border-gray-300 border px-2 py-1.5 text-sm\"> <button type=\"button\" class=\"remove-row-btn text-red-600 hover:underline text-xs shrink-0\">Remove</button></div>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -760,12 +781,12 @@ func ContactForm(username string, data ContactFormData, errMsg string) templ.Com
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var37 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var37 == nil {
-			templ_7745c5c3_Var37 = templ.NopComponent
+		templ_7745c5c3_Var35 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var35 == nil {
+			templ_7745c5c3_Var35 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Var38 := templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
+		templ_7745c5c3_Var36 := templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 			templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 			templ_7745c5c3_Buffer, templ_7745c5c3_IsBuffer := templruntime.GetBuffer(templ_7745c5c3_W)
 			if !templ_7745c5c3_IsBuffer {
@@ -777,84 +798,84 @@ func ContactForm(username string, data ContactFormData, errMsg string) templ.Com
 				}()
 			}
 			ctx = templ.InitializeContext(ctx)
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 51, "<a href=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 55, "<a href=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var39 templ.SafeURL
-			templ_7745c5c3_Var39, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + data.Book))
+			var templ_7745c5c3_Var37 templ.SafeURL
+			templ_7745c5c3_Var37, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + data.Book))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 209, Col: 51}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 208, Col: 51}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var37))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 56, "\" class=\"text-sm text-indigo-600 hover:underline\">&larr; ")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var38 string
+			templ_7745c5c3_Var38, templ_7745c5c3_Err = templ.JoinStringErrs(data.Book)
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 208, Col: 120}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var38))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 57, "</a><h1 class=\"text-2xl font-semibold mt-2 mb-6\">")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			if data.ID == "" {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 58, "New contact")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+			} else {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 59, "Edit contact")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 60, "</h1>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			if errMsg != "" {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 61, "<p class=\"mb-4 text-sm text-red-600 bg-red-50 border border-red-200 rounded px-3 py-2\">")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				var templ_7745c5c3_Var39 string
+				templ_7745c5c3_Var39, templ_7745c5c3_Err = templ.JoinStringErrs(errMsg)
+				if templ_7745c5c3_Err != nil {
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 217, Col: 98}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var39))
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 52, "\" class=\"text-sm text-indigo-600 hover:underline\">&larr; ")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 62, "</p>")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
-			var templ_7745c5c3_Var40 string
-			templ_7745c5c3_Var40, templ_7745c5c3_Err = templ.JoinStringErrs(data.Book)
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 63, " <form method=\"POST\" action=\"")
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 209, Col: 120}
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var40 templ.SafeURL
+			templ_7745c5c3_Var40, templ_7745c5c3_Err = templ.JoinURLErrs(contactFormAction(data))
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 221, Col: 35}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var40))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 53, "</a><h1 class=\"text-2xl font-semibold mt-2 mb-6\">")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			if data.ID == "" {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 54, "New contact")
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-			} else {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 55, "Edit contact")
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 56, "</h1>")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			if errMsg != "" {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 57, "<p class=\"mb-4 text-sm text-red-600 bg-red-50 border border-red-200 rounded px-3 py-2\">")
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-				var templ_7745c5c3_Var41 string
-				templ_7745c5c3_Var41, templ_7745c5c3_Err = templ.JoinStringErrs(errMsg)
-				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 218, Col: 98}
-				}
-				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var41))
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 58, "</p>")
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 59, " <form method=\"POST\" action=\"")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var42 templ.SafeURL
-			templ_7745c5c3_Var42, templ_7745c5c3_Err = templ.JoinURLErrs(contactFormAction(data))
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 222, Col: 35}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var42))
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 60, "\" enctype=\"multipart/form-data\" class=\"bg-white rounded-lg border border-gray-200 p-6 space-y-6 max-w-xl\"><div class=\"flex items-center gap-4\"><span id=\"current-avatar\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 64, "\" enctype=\"multipart/form-data\" class=\"bg-white rounded-lg border border-gray-200 p-6 space-y-6 max-w-xl\"><div class=\"flex items-center gap-4\"><span id=\"current-avatar\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -862,56 +883,69 @@ func ContactForm(username string, data ContactFormData, errMsg string) templ.Com
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 61, "</span> <img id=\"photo-preview\" src=\"\" alt=\"\" class=\"w-20 h-20 rounded-full object-cover hidden\"><div class=\"space-y-1\"><label class=\"cursor-pointer inline-block bg-white border border-gray-300 rounded-md px-3 py-1.5 text-sm font-medium text-gray-700 hover:bg-gray-50\">Foto wählen <input id=\"photo-input\" name=\"photo\" type=\"file\" accept=\"image/*\" class=\"hidden\"></label> ")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 65, "</span> <img id=\"photo-preview\" src=\"\" alt=\"\" class=\"w-20 h-20 rounded-full object-cover hidden\"><div class=\"space-y-1\"><label class=\"cursor-pointer inline-block bg-white border border-gray-300 rounded-md px-3 py-1.5 text-sm font-medium text-gray-700 hover:bg-gray-50\">Choose photo <input id=\"photo-input\" name=\"photo\" type=\"file\" accept=\"image/*\" class=\"hidden\"></label> ")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			if data.PhotoDataURL != "" {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 62, "<label class=\"flex items-center gap-1 text-xs text-gray-500\"><input id=\"remove-photo\" name=\"remove_photo\" type=\"checkbox\" value=\"1\"> Foto entfernen</label>")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 66, "<label class=\"flex items-center gap-1 text-xs text-gray-500\"><input id=\"remove-photo\" name=\"remove_photo\" type=\"checkbox\" value=\"1\"> Remove photo</label>")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 63, "</div></div><div><label class=\"block text-sm font-medium text-gray-700\">Full name</label> <input name=\"full_name\" type=\"text\" required value=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 67, "</div></div><div class=\"grid grid-cols-1 sm:grid-cols-2 gap-3\"><div><label class=\"block text-sm font-medium text-gray-700\">First name</label> <input name=\"forename\" type=\"text\" value=\"")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var41 string
+			templ_7745c5c3_Var41, templ_7745c5c3_Err = templ.ResolveAttributeValue(data.Forename)
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 247, Col: 61}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var41)
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 68, "\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\"></div><div><label class=\"block text-sm font-medium text-gray-700\">Last name</label> <input name=\"surname\" type=\"text\" value=\"")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var42 string
+			templ_7745c5c3_Var42, templ_7745c5c3_Err = templ.ResolveAttributeValue(data.Surname)
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 252, Col: 59}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var42)
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 69, "\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\"></div></div><div><label class=\"block text-sm font-medium text-gray-700\">Organization</label> <input name=\"organization\" type=\"text\" value=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var43 string
-			templ_7745c5c3_Var43, templ_7745c5c3_Err = templ.ResolveAttributeValue(data.FullName)
+			templ_7745c5c3_Var43, templ_7745c5c3_Err = templ.ResolveAttributeValue(data.Organization)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 247, Col: 70}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 258, Col: 68}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var43)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 64, "\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\"></div><div><label class=\"block text-sm font-medium text-gray-700\">Organization</label> <input name=\"organization\" type=\"text\" value=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 70, "\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\"></div><div><label class=\"block text-sm font-medium text-gray-700\">Birthday</label> <input name=\"birthday\" type=\"date\" value=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var44 string
-			templ_7745c5c3_Var44, templ_7745c5c3_Err = templ.ResolveAttributeValue(data.Organization)
+			templ_7745c5c3_Var44, templ_7745c5c3_Err = templ.ResolveAttributeValue(data.Birthday)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 252, Col: 68}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 263, Col: 60}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var44)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 65, "\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\"></div><div><label class=\"block text-sm font-medium text-gray-700\">Geburtstag</label> <input name=\"birthday\" type=\"date\" value=\"")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var45 string
-			templ_7745c5c3_Var45, templ_7745c5c3_Err = templ.ResolveAttributeValue(data.Birthday)
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 257, Col: 60}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var45)
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 66, "\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\"></div><div><label class=\"block text-sm font-medium text-gray-700 mb-2\">Telefonnummern</label><div id=\"phones-container\" class=\"space-y-2\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 71, "\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\"></div><div><label class=\"block text-sm font-medium text-gray-700 mb-2\">Phones</label><div id=\"phones-container\" class=\"space-y-2\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -921,7 +955,7 @@ func ContactForm(username string, data ContactFormData, errMsg string) templ.Com
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 67, "</div><button type=\"button\" data-add-target=\"phones-container\" class=\"add-row-btn mt-2 text-sm text-indigo-600 hover:underline\">+ Telefonnummer hinzufügen</button></div><div><label class=\"block text-sm font-medium text-gray-700 mb-2\">E-Mail-Adressen</label><div id=\"emails-container\" class=\"space-y-2\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 72, "</div><button type=\"button\" data-add-target=\"phones-container\" class=\"add-row-btn mt-2 text-sm text-indigo-600 hover:underline\">+ Add phone number</button></div><div><label class=\"block text-sm font-medium text-gray-700 mb-2\">Emails</label><div id=\"emails-container\" class=\"space-y-2\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -931,7 +965,7 @@ func ContactForm(username string, data ContactFormData, errMsg string) templ.Com
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 68, "</div><button type=\"button\" data-add-target=\"emails-container\" class=\"add-row-btn mt-2 text-sm text-indigo-600 hover:underline\">+ E-Mail-Adresse hinzufügen</button></div><div><label class=\"block text-sm font-medium text-gray-700 mb-2\">Adressen</label><div id=\"addresses-container\" class=\"space-y-2\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 73, "</div><button type=\"button\" data-add-target=\"emails-container\" class=\"add-row-btn mt-2 text-sm text-indigo-600 hover:underline\">+ Add email address</button></div><div><label class=\"block text-sm font-medium text-gray-700 mb-2\">Addresses</label><div id=\"addresses-container\" class=\"space-y-2\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -941,39 +975,39 @@ func ContactForm(username string, data ContactFormData, errMsg string) templ.Com
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 69, "</div><button type=\"button\" data-add-target=\"addresses-container\" class=\"add-row-btn mt-2 text-sm text-indigo-600 hover:underline\">+ Adresse hinzufügen</button></div><div><label class=\"block text-sm font-medium text-gray-700\">Note</label> <textarea name=\"note\" rows=\"3\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 74, "</div><button type=\"button\" data-add-target=\"addresses-container\" class=\"add-row-btn mt-2 text-sm text-indigo-600 hover:underline\">+ Add address</button></div><div><label class=\"block text-sm font-medium text-gray-700\">Note</label> <textarea name=\"note\" rows=\"3\" class=\"mt-1 block w-full rounded-md border-gray-300 border px-3 py-2 shadow-sm\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var46 string
-			templ_7745c5c3_Var46, templ_7745c5c3_Err = templ.JoinStringErrs(data.Note)
+			var templ_7745c5c3_Var45 string
+			templ_7745c5c3_Var45, templ_7745c5c3_Err = templ.JoinStringErrs(data.Note)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 300, Col: 96}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 306, Col: 96}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var45))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 75, "</textarea></div><div class=\"flex gap-2\"><button type=\"submit\" class=\"bg-indigo-600 text-white rounded-md px-4 py-2 text-sm font-medium hover:bg-indigo-700\">Save</button> <a href=\"")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var46 templ.SafeURL
+			templ_7745c5c3_Var46, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + data.Book))
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 312, Col: 53}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var46))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 70, "</textarea></div><div class=\"flex gap-2\"><button type=\"submit\" class=\"bg-indigo-600 text-white rounded-md px-4 py-2 text-sm font-medium hover:bg-indigo-700\">Save</button> <a href=\"")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var47 templ.SafeURL
-			templ_7745c5c3_Var47, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/contacts/" + data.Book))
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/contacts.templ`, Line: 306, Col: 53}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var47))
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 71, "\" class=\"rounded-md border border-gray-300 px-4 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50\">Cancel</a></div></form><script type=\"module\" src=\"/web/static/contacts.js\"></script>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 76, "\" class=\"rounded-md border border-gray-300 px-4 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50\">Cancel</a></div></form><script type=\"module\" src=\"/web/static/contacts.js\"></script>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			return nil
 		})
-		templ_7745c5c3_Err = Layout("Contacts", username).Render(templ.WithChildren(ctx, templ_7745c5c3_Var38), templ_7745c5c3_Buffer)
+		templ_7745c5c3_Err = Layout("Contacts", username).Render(templ.WithChildren(ctx, templ_7745c5c3_Var36), templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}

internal/web/templates/files.templ

@@ -16,7 +16,7 @@ type FileEntry struct {
 	RelPath  string // relative path (no leading slash) used to build the link
 }
 
-templ FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry, currentPath string) {
+templ FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry, currentPath string, sortBy string, sortDir string) {
 	@Layout("Files", username) {
 		<div class="flex items-center justify-between mb-6 gap-4 flex-wrap">
 			<h1 class="text-2xl font-semibold">Files</h1>
@@ -33,6 +33,10 @@ templ FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry,
 					Upload folder
 					<input id="upload-folder-input" type="file" webkitdirectory multiple class="hidden"/>
 				</label>
+				<select id="sort-select" class="rounded-md border-gray-300 border px-2 py-1.5 text-sm text-gray-700">
+					<option value="name_asc" selected?={ sortBy == "name" && sortDir == "asc" }>Name (asc)</option>
+					<option value="name_desc" selected?={ sortBy == "name" && sortDir == "desc" }>Name (desc)</option>
+				</select>
 			</div>
 		</div>
 
@@ -48,6 +52,8 @@ templ FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry,
 			id="file-drop-zone"
 			data-current-path={ currentPath }
 			data-upload-url={ "/web/files/" + currentPath }
+			data-sort-by={ sortBy }
+			data-sort-dir={ sortDir }
 			class="bg-white rounded-lg border-2 border-dashed border-gray-200 p-2 transition-colors"
 		>
 			<!-- Table layout for wider screens (sm and up). -->
@@ -60,9 +66,29 @@ templ FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry,
 				</colgroup>
 				<thead>
 					<tr class="text-left text-gray-400 border-b border-gray-100">
-						<th class="py-2 px-3 font-medium">Name</th>
+						<th class="py-2 px-3 font-medium">
+							if sortBy == "name" {
+								if sortDir == "asc" {
+									<a href={ templ.URL("/web/files/" + currentPath + "?sort_by=name&sort_dir=desc") } class="hover:text-indigo-600">Name <span class="ml-1 text-xs">↓</span></a>
+								} else {
+									<a href={ templ.URL("/web/files/" + currentPath + "?sort_by=name&sort_dir=asc") } class="hover:text-indigo-600">Name <span class="ml-1 text-xs">↑</span></a>
+								}
+							} else {
+								<a href={ templ.URL("/web/files/" + currentPath + "?sort_by=name&sort_dir=asc") } class="hover:text-indigo-600">Name</a>
+							}
+						</th>
 						<th class="py-2 px-3 font-medium">Size</th>
-						<th class="py-2 px-3 font-medium">Modified</th>
+						<th class="py-2 px-3 font-medium">
+							if sortBy == "modtime" {
+								if sortDir == "asc" {
+									<a href={ templ.URL("/web/files/" + currentPath + "?sort_by=modtime&sort_dir=desc") } class="hover:text-indigo-600">Modified <span class="ml-1 text-xs">↓</span></a>
+								} else {
+									<a href={ templ.URL("/web/files/" + currentPath + "?sort_by=modtime&sort_dir=asc") } class="hover:text-indigo-600">Modified <span class="ml-1 text-xs">↑</span></a>
+								}
+							} else {
+								<a href={ templ.URL("/web/files/" + currentPath + "?sort_by=modtime&sort_dir=asc") } class="hover:text-indigo-600">Modified</a>
+							}
+						</th>
 						<th class="py-2 px-3 font-medium"></th>
 					</tr>
 				</thead>
@@ -163,4 +189,3 @@ templ fileDeleteButton(e FileEntry) {
 		Delete
 	</button>
 }
-

internal/web/templates/files_templ.go

@@ -24,7 +24,7 @@ type FileEntry struct {
 	RelPath string // relative path (no leading slash) used to build the link
 }
 
-func FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry, currentPath string) templ.Component {
+func FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry, currentPath string, sortBy string, sortDir string) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -57,176 +57,276 @@ func FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry, c
 				}()
 			}
 			ctx = templ.InitializeContext(ctx)
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<div class=\"flex items-center justify-between mb-6 gap-4 flex-wrap\"><h1 class=\"text-2xl font-semibold\">Files</h1><div class=\"flex gap-2 flex-wrap\"><button id=\"new-folder-button\" type=\"button\" class=\"bg-white border border-gray-300 rounded-md px-3 py-1.5 text-sm font-medium text-gray-700 hover:bg-gray-50\">New folder</button> <label class=\"cursor-pointer bg-indigo-600 text-white rounded-md px-3 py-1.5 text-sm font-medium hover:bg-indigo-700\">Upload files <input id=\"upload-files-input\" type=\"file\" multiple class=\"hidden\"></label> <label class=\"cursor-pointer bg-indigo-600 text-white rounded-md px-3 py-1.5 text-sm font-medium hover:bg-indigo-700\">Upload folder <input id=\"upload-folder-input\" type=\"file\" webkitdirectory multiple class=\"hidden\"></label></div></div><nav class=\"text-sm text-gray-500 mb-4 flex flex-wrap items-center gap-1\"><a href=\"/web/files/\" class=\"hover:underline text-indigo-600\">home</a> ")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<div class=\"flex items-center justify-between mb-6 gap-4 flex-wrap\"><h1 class=\"text-2xl font-semibold\">Files</h1><div class=\"flex gap-2 flex-wrap\"><button id=\"new-folder-button\" type=\"button\" class=\"bg-white border border-gray-300 rounded-md px-3 py-1.5 text-sm font-medium text-gray-700 hover:bg-gray-50\">New folder</button> <label class=\"cursor-pointer bg-indigo-600 text-white rounded-md px-3 py-1.5 text-sm font-medium hover:bg-indigo-700\">Upload files <input id=\"upload-files-input\" type=\"file\" multiple class=\"hidden\"></label> <label class=\"cursor-pointer bg-indigo-600 text-white rounded-md px-3 py-1.5 text-sm font-medium hover:bg-indigo-700\">Upload folder <input id=\"upload-folder-input\" type=\"file\" webkitdirectory multiple class=\"hidden\"></label> <select id=\"sort-select\" class=\"rounded-md border-gray-300 border px-2 py-1.5 text-sm text-gray-700\"><option value=\"name_asc\"")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			if sortBy == "name" && sortDir == "asc" {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, " selected")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 3, ">Name (asc)</option> <option value=\"name_desc\"")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			if sortBy == "name" && sortDir == "desc" {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 4, " selected")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 5, ">Name (desc)</option></select></div></div><nav class=\"text-sm text-gray-500 mb-4 flex flex-wrap items-center gap-1\"><a href=\"/web/files/\" class=\"hover:underline text-indigo-600\">home</a> ")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			for _, bc := range breadcrumbs {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, "<span>/</span> <a href=\"")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 6, "<span>/</span> <a href=\"")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
 				var templ_7745c5c3_Var3 templ.SafeURL
 				templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + bc.Path + "/"))
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 43, Col: 54}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 47, Col: 54}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 3, "\" class=\"hover:underline text-indigo-600\">")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 7, "\" class=\"hover:underline text-indigo-600\">")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
 				var templ_7745c5c3_Var4 string
 				templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.JoinStringErrs(bc.Name)
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 43, Col: 106}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 47, Col: 106}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var4))
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 4, "</a>")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 8, "</a>")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 5, "</nav><div id=\"file-drop-zone\" data-current-path=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 9, "</nav><div id=\"file-drop-zone\" data-current-path=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var5 string
 			templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.ResolveAttributeValue(currentPath)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 49, Col: 34}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 53, Col: 34}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var5)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 6, "\" data-upload-url=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 10, "\" data-upload-url=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var6 string
 			templ_7745c5c3_Var6, templ_7745c5c3_Err = templ.ResolveAttributeValue("/web/files/" + currentPath)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 50, Col: 48}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 54, Col: 48}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var6)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 7, "\" class=\"bg-white rounded-lg border-2 border-dashed border-gray-200 p-2 transition-colors\"><!-- Table layout for wider screens (sm and up). --><table class=\"hidden sm:table w-full text-sm table-fixed\"><colgroup><col class=\"w-auto\"> <col class=\"w-20\"> <col class=\"w-36\"> <col class=\"w-16\"></colgroup> <thead><tr class=\"text-left text-gray-400 border-b border-gray-100\"><th class=\"py-2 px-3 font-medium\">Name</th><th class=\"py-2 px-3 font-medium\">Size</th><th class=\"py-2 px-3 font-medium\">Modified</th><th class=\"py-2 px-3 font-medium\"></th></tr></thead> <tbody>")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			for _, e := range entries {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 8, "<tr class=\"border-b border-gray-50 hover:bg-gray-50\"><td class=\"py-2 px-3 break-all\">")
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-				templ_7745c5c3_Err = fileEntryLink(e).Render(ctx, templ_7745c5c3_Buffer)
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 9, "</td><td class=\"py-2 px-3 text-gray-500 whitespace-nowrap\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 11, "\" data-sort-by=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var7 string
-				templ_7745c5c3_Var7, templ_7745c5c3_Err = templ.JoinStringErrs(e.Size)
+			templ_7745c5c3_Var7, templ_7745c5c3_Err = templ.ResolveAttributeValue(sortBy)
 			if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 75, Col: 69}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 55, Col: 24}
 			}
-				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var7))
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var7)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 10, "</td><td class=\"py-2 px-3 text-gray-500 whitespace-nowrap\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 12, "\" data-sort-dir=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var8 string
-				templ_7745c5c3_Var8, templ_7745c5c3_Err = templ.JoinStringErrs(e.ModTime)
+			templ_7745c5c3_Var8, templ_7745c5c3_Err = templ.ResolveAttributeValue(sortDir)
 			if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 76, Col: 72}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 56, Col: 26}
 			}
-				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var8))
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var8)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 11, "</td><td class=\"py-2 px-3 text-right whitespace-nowrap\"><div class=\"flex items-center justify-end gap-3\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 13, "\" class=\"bg-white rounded-lg border-2 border-dashed border-gray-200 p-2 transition-colors\"><!-- Table layout for wider screens (sm and up). --><table class=\"hidden sm:table w-full text-sm table-fixed\"><colgroup><col class=\"w-auto\"> <col class=\"w-20\"> <col class=\"w-36\"> <col class=\"w-16\"></colgroup> <thead><tr class=\"text-left text-gray-400 border-b border-gray-100\"><th class=\"py-2 px-3 font-medium\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-				templ_7745c5c3_Err = fileActions(e).Render(ctx, templ_7745c5c3_Buffer)
+			if sortBy == "name" {
+				if sortDir == "asc" {
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 14, "<a href=\"")
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 12, "</div></td></tr>")
+					var templ_7745c5c3_Var9 templ.SafeURL
+					templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + currentPath + "?sort_by=name&sort_dir=desc"))
 					if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-			}
-			if len(entries) == 0 {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 13, "<tr><td colspan=\"4\" class=\"py-6 px-3 text-center text-gray-400\">This folder is empty — drag &amp; drop files or folders here, or use the upload buttons above.</td></tr>")
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 14, "</tbody></table><!-- Stacked card layout for narrow screens: same information as\n\t\t\t     the table above (name, size, modified, delete), just\n\t\t\t     wrapped onto its own lines instead of squeezed into\n\t\t\t     columns, so nothing needs to be hidden or scrolled to. --><ul class=\"sm:hidden divide-y divide-gray-100\">")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			for _, e := range entries {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 15, "<li class=\"py-2.5 px-1\"><div class=\"break-all\">")
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-				templ_7745c5c3_Err = fileEntryLink(e).Render(ctx, templ_7745c5c3_Buffer)
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 16, "</div><div class=\"mt-1 flex flex-wrap items-center gap-x-3 gap-y-1 text-xs text-gray-500 pl-6\">")
-				if templ_7745c5c3_Err != nil {
-					return templ_7745c5c3_Err
-				}
-				if e.Size != "" {
-					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 17, "<span>")
-					if templ_7745c5c3_Err != nil {
-						return templ_7745c5c3_Err
-					}
-					var templ_7745c5c3_Var9 string
-					templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.JoinStringErrs(e.Size)
-					if templ_7745c5c3_Err != nil {
-						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 106, Col: 22}
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 72, Col: 89}
 					}
 					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var9))
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 18, "</span> ")
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 15, "\" class=\"hover:text-indigo-600\">Name <span class=\"ml-1 text-xs\">↓</span></a>")
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-				}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 19, "<span>")
+				} else {
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 16, "<a href=\"")
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-				var templ_7745c5c3_Var10 string
-				templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.JoinStringErrs(e.ModTime)
+					var templ_7745c5c3_Var10 templ.SafeURL
+					templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + currentPath + "?sort_by=name&sort_dir=asc"))
 					if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 108, Col: 24}
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 74, Col: 88}
 					}
 					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var10))
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 20, "</span> <span class=\"ml-auto flex items-center gap-3\">")
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 17, "\" class=\"hover:text-indigo-600\">Name <span class=\"ml-1 text-xs\">↑</span></a>")
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+				}
+			} else {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 18, "<a href=\"")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				var templ_7745c5c3_Var11 templ.SafeURL
+				templ_7745c5c3_Var11, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + currentPath + "?sort_by=name&sort_dir=asc"))
+				if templ_7745c5c3_Err != nil {
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 77, Col: 87}
+				}
+				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var11))
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 19, "\" class=\"hover:text-indigo-600\">Name</a>")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 20, "</th><th class=\"py-2 px-3 font-medium\">Size</th><th class=\"py-2 px-3 font-medium\">")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			if sortBy == "modtime" {
+				if sortDir == "asc" {
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 21, "<a href=\"")
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+					var templ_7745c5c3_Var12 templ.SafeURL
+					templ_7745c5c3_Var12, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + currentPath + "?sort_by=modtime&sort_dir=desc"))
+					if templ_7745c5c3_Err != nil {
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 84, Col: 92}
+					}
+					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var12))
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 22, "\" class=\"hover:text-indigo-600\">Modified <span class=\"ml-1 text-xs\">↓</span></a>")
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+				} else {
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 23, "<a href=\"")
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+					var templ_7745c5c3_Var13 templ.SafeURL
+					templ_7745c5c3_Var13, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + currentPath + "?sort_by=modtime&sort_dir=asc"))
+					if templ_7745c5c3_Err != nil {
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 86, Col: 91}
+					}
+					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var13))
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 24, "\" class=\"hover:text-indigo-600\">Modified <span class=\"ml-1 text-xs\">↑</span></a>")
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+				}
+			} else {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 25, "<a href=\"")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				var templ_7745c5c3_Var14 templ.SafeURL
+				templ_7745c5c3_Var14, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + currentPath + "?sort_by=modtime&sort_dir=asc"))
+				if templ_7745c5c3_Err != nil {
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 89, Col: 90}
+				}
+				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var14))
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 26, "\" class=\"hover:text-indigo-600\">Modified</a>")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 27, "</th><th class=\"py-2 px-3 font-medium\"></th></tr></thead> <tbody>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			for _, e := range entries {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "<tr class=\"border-b border-gray-50 hover:bg-gray-50\"><td class=\"py-2 px-3 break-all\">")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = fileEntryLink(e).Render(ctx, templ_7745c5c3_Buffer)
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 29, "</td><td class=\"py-2 px-3 text-gray-500 whitespace-nowrap\">")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				var templ_7745c5c3_Var15 string
+				templ_7745c5c3_Var15, templ_7745c5c3_Err = templ.JoinStringErrs(e.Size)
+				if templ_7745c5c3_Err != nil {
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 101, Col: 69}
+				}
+				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var15))
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 30, "</td><td class=\"py-2 px-3 text-gray-500 whitespace-nowrap\">")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				var templ_7745c5c3_Var16 string
+				templ_7745c5c3_Var16, templ_7745c5c3_Err = templ.JoinStringErrs(e.ModTime)
+				if templ_7745c5c3_Err != nil {
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 102, Col: 72}
+				}
+				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var16))
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 31, "</td><td class=\"py-2 px-3 text-right whitespace-nowrap\"><div class=\"flex items-center justify-end gap-3\">")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
@@ -234,18 +334,86 @@ func FilesPage(username string, breadcrumbs []Breadcrumb, entries []FileEntry, c
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 21, "</span></div></li>")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 32, "</div></td></tr>")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
 			}
 			if len(entries) == 0 {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 22, "<li class=\"py-6 px-3 text-center text-gray-400 text-sm\">This folder is empty — drag &amp; drop files or folders here, or use the upload buttons above.</li>")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, "<tr><td colspan=\"4\" class=\"py-6 px-3 text-center text-gray-400\">This folder is empty — drag &amp; drop files or folders here, or use the upload buttons above.</td></tr>")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 23, "</ul></div><p id=\"upload-status\" class=\"mt-3 text-sm text-gray-500\"></p><script type=\"module\" src=\"/web/static/files.js\"></script>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, "</tbody></table><!-- Stacked card layout for narrow screens: same information as\n\t\t\t     the table above (name, size, modified, delete), just\n\t\t\t     wrapped onto its own lines instead of squeezed into\n\t\t\t     columns, so nothing needs to be hidden or scrolled to. --><ul class=\"sm:hidden divide-y divide-gray-100\">")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			for _, e := range entries {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, "<li class=\"py-2.5 px-1\"><div class=\"break-all\">")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = fileEntryLink(e).Render(ctx, templ_7745c5c3_Buffer)
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 36, "</div><div class=\"mt-1 flex flex-wrap items-center gap-x-3 gap-y-1 text-xs text-gray-500 pl-6\">")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				if e.Size != "" {
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, "<span>")
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+					var templ_7745c5c3_Var17 string
+					templ_7745c5c3_Var17, templ_7745c5c3_Err = templ.JoinStringErrs(e.Size)
+					if templ_7745c5c3_Err != nil {
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 132, Col: 22}
+					}
+					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var17))
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "</span> ")
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "<span>")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				var templ_7745c5c3_Var18 string
+				templ_7745c5c3_Var18, templ_7745c5c3_Err = templ.JoinStringErrs(e.ModTime)
+				if templ_7745c5c3_Err != nil {
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 134, Col: 24}
+				}
+				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var18))
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, "</span> <span class=\"ml-auto flex items-center gap-3\">")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = fileActions(e).Render(ctx, templ_7745c5c3_Buffer)
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, "</span></div></li>")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+			}
+			if len(entries) == 0 {
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, "<li class=\"py-6 px-3 text-center text-gray-400 text-sm\">This folder is empty — drag &amp; drop files or folders here, or use the upload buttons above.</li>")
+				if templ_7745c5c3_Err != nil {
+					return templ_7745c5c3_Err
+				}
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, "</ul></div><p id=\"upload-status\" class=\"mt-3 text-sm text-gray-500\"></p><script type=\"module\" src=\"/web/static/files.js\"></script>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -275,70 +443,70 @@ func fileEntryLink(e FileEntry) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var11 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var11 == nil {
-			templ_7745c5c3_Var11 = templ.NopComponent
+		templ_7745c5c3_Var19 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var19 == nil {
+			templ_7745c5c3_Var19 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
 		if e.IsDir {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 24, "<a href=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 44, "<a href=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var12 templ.SafeURL
-			templ_7745c5c3_Var12, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + e.RelPath + "/"))
+			var templ_7745c5c3_Var20 templ.SafeURL
+			templ_7745c5c3_Var20, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + e.RelPath + "/"))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 129, Col: 54}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 155, Col: 54}
 			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var12))
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var20))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 25, "\" class=\"flex items-center gap-2 text-indigo-600 hover:underline\"><span aria-hidden=\"true\">📁</span>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 45, "\" class=\"flex items-center gap-2 text-indigo-600 hover:underline\"><span aria-hidden=\"true\">📁</span>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var13 string
-			templ_7745c5c3_Var13, templ_7745c5c3_Err = templ.JoinStringErrs(e.Name)
+			var templ_7745c5c3_Var21 string
+			templ_7745c5c3_Var21, templ_7745c5c3_Err = templ.JoinStringErrs(e.Name)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 130, Col: 47}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 156, Col: 47}
 			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var13))
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var21))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 26, "</a>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 46, "</a>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		} else {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 27, "<a href=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 47, "<a href=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var14 templ.SafeURL
-			templ_7745c5c3_Var14, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + e.RelPath))
+			var templ_7745c5c3_Var22 templ.SafeURL
+			templ_7745c5c3_Var22, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + e.RelPath))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 133, Col: 48}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 159, Col: 48}
 			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var14))
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var22))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "\" target=\"_blank\" rel=\"noopener\" class=\"flex items-center gap-2 text-gray-700 hover:underline\"><span aria-hidden=\"true\">📄</span>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 48, "\" target=\"_blank\" rel=\"noopener\" class=\"flex items-center gap-2 text-gray-700 hover:underline\"><span aria-hidden=\"true\">📄</span>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var15 string
-			templ_7745c5c3_Var15, templ_7745c5c3_Err = templ.JoinStringErrs(e.Name)
+			var templ_7745c5c3_Var23 string
+			templ_7745c5c3_Var23, templ_7745c5c3_Err = templ.JoinStringErrs(e.Name)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 134, Col: 47}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 160, Col: 47}
 			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var15))
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var23))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 29, "</a>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 49, "</a>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -368,26 +536,26 @@ func fileActions(e FileEntry) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var16 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var16 == nil {
-			templ_7745c5c3_Var16 = templ.NopComponent
+		templ_7745c5c3_Var24 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var24 == nil {
+			templ_7745c5c3_Var24 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
 		if !e.IsDir {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 30, "<a href=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 50, "<a href=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var17 templ.SafeURL
-			templ_7745c5c3_Var17, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + e.RelPath + "?download=1"))
+			var templ_7745c5c3_Var25 templ.SafeURL
+			templ_7745c5c3_Var25, templ_7745c5c3_Err = templ.JoinURLErrs(templ.URL("/web/files/" + e.RelPath + "?download=1"))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 147, Col: 62}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 173, Col: 62}
 			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var17))
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var25))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 31, "\" class=\"text-gray-500 hover:text-indigo-600 hover:underline text-xs font-medium\">Download</a>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 51, "\" class=\"text-gray-500 hover:text-indigo-600 hover:underline text-xs font-medium\">Download</a>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -416,38 +584,38 @@ func fileDeleteButton(e FileEntry) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var18 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var18 == nil {
-			templ_7745c5c3_Var18 = templ.NopComponent
+		templ_7745c5c3_Var26 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var26 == nil {
+			templ_7745c5c3_Var26 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 32, "<button type=\"button\" class=\"delete-entry-button text-red-500 hover:text-red-700 text-xs font-medium\" data-path=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 52, "<button type=\"button\" class=\"delete-entry-button text-red-500 hover:text-red-700 text-xs font-medium\" data-path=\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var19 string
-		templ_7745c5c3_Var19, templ_7745c5c3_Err = templ.ResolveAttributeValue(e.RelPath)
+		var templ_7745c5c3_Var27 string
+		templ_7745c5c3_Var27, templ_7745c5c3_Err = templ.ResolveAttributeValue(e.RelPath)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 160, Col: 23}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 186, Col: 23}
 		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var19)
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var27)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, "\" data-name=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 53, "\" data-name=\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var20 string
-		templ_7745c5c3_Var20, templ_7745c5c3_Err = templ.ResolveAttributeValue(e.Name)
+		var templ_7745c5c3_Var28 string
+		templ_7745c5c3_Var28, templ_7745c5c3_Err = templ.ResolveAttributeValue(e.Name)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 161, Col: 20}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/files.templ`, Line: 187, Col: 20}
 		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var20)
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var28)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, "\">Delete</button>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 54, "\">Delete</button>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}

internal/webdav/handler.go

@@ -7,14 +7,14 @@ import (
 	"path/filepath"
 	"sync"
 
-	"github.com/yourusername/caldav-server/internal/auth"
-	"github.com/yourusername/caldav-server/internal/config"
+	"git.arnef.de/arnef/nidus/internal/auth"
+	"git.arnef.de/arnef/nidus/internal/config"
 	xwebdav "golang.org/x/net/webdav"
 )
 
 // NewHandler returns an http.Handler that provides standard WebDAV file access,
 // mounted at the fixed URL /files/ for every user and rooted at
-// dataDir/files/<username>/ on disk. The URL is the same for all users —
+// dataDir/<username>/files on disk. The URL is the same for all users —
 // which user's directory is served is resolved from the Basic Auth identity
 // in the request context, not from the URL.
 //
@@ -38,7 +38,7 @@ func NewHandler(cfg *config.Config, dataDir string, logger *slog.Logger) http.Ha
 		h, ok := handlers[p.Username]
 		if !ok {
 			username := p.Username
-			userDir := filepath.Join(dataDir, "files", username)
+			userDir := filepath.Join(dataDir, username, "files")
 			if err := os.MkdirAll(userDir, 0o755); err != nil {
 				mu.Unlock()
 				logger.Error("creating user WebDAV dir", "user", username, "error", err)

internal/webdav/handler_test.go

@@ -9,8 +9,8 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/yourusername/caldav-server/internal/auth"
-	filewebdav "github.com/yourusername/caldav-server/internal/webdav"
+	"git.arnef.de/arnef/nidus/internal/auth"
+	filewebdav "git.arnef.de/arnef/nidus/internal/webdav"
 )
 
 func testLogger() *slog.Logger {
@@ -54,10 +54,10 @@ func TestPerUserIsolationAndPrefix(t *testing.T) {
 		t.Fatalf("expected bob to get 404 for alice's file, got %d", bobRec.Code)
 	}
 
-	// Confirm the file physically landed under dataDir/files/alice/, not
+	// Confirm the file physically landed under dataDir/alice/files/, not
 	// nested under an extra files/files/... path.
-	if _, err := os.Stat(dir + "/files/alice/note.txt"); err != nil {
-		t.Fatalf("expected file at dataDir/files/alice/note.txt: %v", err)
+	if _, err := os.Stat(dir + "/alice/files/note.txt"); err != nil {
+		t.Fatalf("expected file at dataDir/alice/files/note.txt: %v", err)
 	}
 }
 

tools/migrate/main.go

@@ -0,0 +1,62 @@
+// Command migrate is a tool to restructure the data directory from the
+// old format to the new unified format.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log/slog"
+	"os"
+
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/store"
+)
+
+func main() {
+	os.Exit(run(os.Args[1:]))
+}
+
+func run(args []string) int {
+	fs := flag.NewFlagSet("migrate", flag.ContinueOnError)
+	verbose := fs.Bool("verbose", false, "enable verbose output")
+	if err := fs.Parse(args); err != nil {
+		return 2
+	}
+
+	cfg, err := config.Load()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error loading config: %v\n", err)
+		return 1
+	}
+
+	logger := buildLogger(*verbose)
+
+	st, err := store.NewStore(cfg.Storage.DataDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error opening store %q: %v\n", cfg.Storage.DataDir, err)
+		return 1
+	}
+
+	logger.Info("starting migration", "data_dir", cfg.Storage.DataDir)
+
+	if err := st.Migrate(); err != nil {
+		logger.Error("migration failed", "error", err)
+		fmt.Fprintf(os.Stderr, "migration failed: %v\n", err)
+		return 1
+	}
+
+	logger.Info("migration completed successfully")
+	fmt.Println("Migration completed successfully")
+	return 0
+}
+
+func buildLogger(verbose bool) *slog.Logger {
+	level := slog.LevelInfo
+	if verbose {
+		level = slog.LevelDebug
+	}
+	handler := slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{
+		Level: level,
+	})
+	return slog.New(handler)
+}

tools/nidusctl/main.go

@@ -8,14 +8,13 @@
 package main
 
 import (
-	"flag"
 	"fmt"
 	"os"
 	"path/filepath"
 
-	"github.com/yourusername/caldav-server/internal/config"
-	"github.com/yourusername/caldav-server/internal/db"
-	"github.com/yourusername/caldav-server/internal/store"
+	"git.arnef.de/arnef/nidus/internal/config"
+	"git.arnef.de/arnef/nidus/internal/db"
+	"git.arnef.de/arnef/nidus/internal/store"
 )
 
 func main() {
@@ -23,18 +22,12 @@ func main() {
 }
 
 func run(args []string) int {
-	fs := flag.NewFlagSet("nidusctl", flag.ContinueOnError)
-	cfgPath := fs.String("config", "config.yaml", "path to configuration file")
-	if err := fs.Parse(args); err != nil {
-		return 2
-	}
-	rest := fs.Args()
-	if len(rest) < 1 {
+	if len(args) < 1 {
 		usage()
 		return 2
 	}
 
-	cfg, err := config.Load(*cfgPath)
+	cfg, err := config.Load()
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "error loading config: %v\n", err)
 		return 1
@@ -54,18 +47,20 @@ func run(args []string) int {
 		return 1
 	}
 
-	switch rest[0] {
+	switch args[0] {
 	case "user":
-		return runUser(dbase, rest[1:])
+		return runUser(dbase, args[1:])
 	case "calendar", "cal":
-		return runCalendar(dbase, st, rest[1:])
+		return runCalendar(dbase, st, args[1:])
 	case "addressbook", "card":
-		return runAddressBook(dbase, st, rest[1:])
+		return runAddressBook(dbase, st, args[1:])
+	case "migrate":
+		return runMigrate(st, args[1:])
 	case "help", "-h", "--help":
 		usage()
 		return 0
 	default:
-		fmt.Fprintf(os.Stderr, "unknown command %q\n\n", rest[0])
+		fmt.Fprintf(os.Stderr, "unknown command: %s\n", args[0])
 		usage()
 		return 2
 	}
@@ -75,25 +70,32 @@ func usage() {
 	fmt.Fprint(os.Stderr, `nidusctl - manage nidus DAV server users, resources, and sharing grants
 
 Usage:
-  nidusctl [-config config.yaml] user create   <username> [--display-name NAME] [--email EMAIL] [--password PW]
-  nidusctl [-config config.yaml] user delete   <username>
-  nidusctl [-config config.yaml] user list
-  nidusctl [-config config.yaml] user passwd   <username> [--password PW]
+  nidusctl user create   <username> [--display-name NAME] [--email EMAIL] [--password PW]
+  nidusctl user delete   <username>
+  nidusctl user list
+  nidusctl user passwd   <username> [--password PW]
 
-  nidusctl [-config config.yaml] calendar create   <owner> <calendar> [--color '#RRGGBB']
-  nidusctl [-config config.yaml] calendar color    <owner> <calendar> <hex-color>
-  nidusctl [-config config.yaml] calendar delete   <owner> <calendar>
-  nidusctl [-config config.yaml] calendar list     <owner>
-  nidusctl [-config config.yaml] calendar share    <owner> <calendar> <user> <read|write>
-  nidusctl [-config config.yaml] calendar unshare  <owner> <calendar> <user>
-  nidusctl [-config config.yaml] calendar shares   <owner> <calendar>
+  nidusctl calendar create   <owner> <calendar> [--color '#RRGGBB']
+  nidusctl calendar color    <owner> <calendar> <hex-color>
+  nidusctl calendar delete   <owner> <calendar>
+  nidusctl calendar list     <owner>
+  nidusctl calendar share    <owner> <calendar> <user> <read|write>
+  nidusctl calendar unshare  <owner> <calendar> <user>
+  nidusctl calendar shares   <owner> <calendar>
 
-  nidusctl [-config config.yaml] addressbook create  <owner> <book>
-  nidusctl [-config config.yaml] addressbook delete  <owner> <book>
-  nidusctl [-config config.yaml] addressbook list    <owner>
-  nidusctl [-config config.yaml] addressbook share   <owner> <book> <user> <read|write>
-  nidusctl [-config config.yaml] addressbook unshare <owner> <book> <user>
-  nidusctl [-config config.yaml] addressbook shares  <owner> <book>
+  nidusctl addressbook create  <owner> <book>
+  nidusctl addressbook delete  <owner> <book>
+  nidusctl addressbook list    <owner>
+  nidusctl addressbook share   <owner> <book> <user> <read|write>
+  nidusctl addressbook unshare <owner> <book> <user>
+  nidusctl addressbook shares  <owner> <book>
+
+  nidusctl migrate [--verbose]
+
+  nidusctl help
+
+Configuration is done via environment variables:
+  NIDUS_DATA_DIR   - data directory (default: ./data)
 
 Examples:
   nidusctl user create alice --display-name "Alice Smith" --email alice@example.com
@@ -101,16 +103,10 @@ Examples:
   nidusctl calendar share alice work bob write
   nidusctl calendar shares alice work
   nidusctl calendar unshare alice work bob
+  nidusctl migrate
 `)
 }
 
-// newFlagSet creates a flag.FlagSet configured for subcommand parsing
-// (flags may appear before or after positional args, since callers parse
-// flags first with fs.Parse then read fs.Args() for the rest).
-func newFlagSet(name string) *flag.FlagSet {
-	return flag.NewFlagSet(name, flag.ContinueOnError)
-}
-
 func runCalendar(dbase *db.DB, st *store.Store, args []string) int {
 	if len(args) < 1 {
 		usage()
@@ -118,17 +114,17 @@ func runCalendar(dbase *db.DB, st *store.Store, args []string) int {
 	}
 	switch args[0] {
 	case "create":
-		fs := newFlagSet("calendar create")
-		color := fs.String("color", "", "hex color like #3b82f6 (optional)")
-		if err := fs.Parse(args[1:]); err != nil {
-			return 2
+		color := ""
+		if len(args) > 2 && args[1] == "--color" {
+			color = args[2]
+			args = args[:1]
 		}
-		if fs.NArg() != 2 {
+		if len(args) != 3 {
 			fmt.Fprintln(os.Stderr, "usage: nidusctl calendar create <owner> <calendar> [--color '#RRGGBB']")
 			return 2
 		}
-		owner, calName := fs.Arg(0), fs.Arg(1)
-		if err := dbase.CreateCalendarWithColor(owner, calName, *color); err != nil {
+		owner, calName := args[1], args[2]
+		if err := dbase.CreateCalendarWithColor(owner, calName, color); err != nil {
 			fmt.Fprintf(os.Stderr, "error: %v\n", err)
 			return 1
 		}
@@ -359,6 +355,16 @@ func runAddressBook(dbase *db.DB, st *store.Store, args []string) int {
 	}
 }
 
+func runMigrate(st *store.Store, args []string) int {
+	// Ignore args for now (could add --verbose flag in future if needed)
+	if err := st.Migrate(); err != nil {
+		fmt.Fprintf(os.Stderr, "migration failed: %v\n", err)
+		return 1
+	}
+	fmt.Println("Migration completed successfully")
+	return 0
+}
+
 // warnIfUnknownUser reports (without failing) if username is not a
 // registered user — the share is still recorded, since a user could be
 // created afterwards.

tools/nidusctl/main_test.go

@@ -9,28 +9,9 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/yourusername/caldav-server/internal/db"
+	"git.arnef.de/arnef/nidus/internal/db"
 )
 
-// writeTestConfig creates a minimal config.yaml in dir and returns its path.
-func writeTestConfig(t *testing.T, dir string) string {
-	t.Helper()
-	cfgPath := filepath.Join(dir, "config.yaml")
-	dataDir := filepath.Join(dir, "data")
-	content := "storage:\n  data_dir: " + dataDir + "\n" +
-		"users:\n" +
-		"  alice:\n" +
-		"    password: \"$2a$10$9.WEs0uz5TaNJLQbSTLrX.Te.BIe8XTTykVRzZbSHQMEkyFb8Sq/O\"\n" +
-		"  bob:\n" +
-		"    password: \"$2a$10$9.WEs0uz5TaNJLQbSTLrX.Te.BIe8XTTykVRzZbSHQMEkyFb8Sq/O\"\n"
-	if err := os.WriteFile(cfgPath, []byte(content), 0o644); err != nil {
-		t.Fatalf("writing test config: %v", err)
-	}
-	return cfgPath
-}
-
-// runCLI runs the CLI's run() function, capturing stdout/stderr, and
-// returns (exit code, combined stdout+stderr).
 func runCLI(t *testing.T, args ...string) (int, string) {
 	t.Helper()
 
@@ -56,9 +37,9 @@ func runCLI(t *testing.T, args ...string) (int, string) {
 
 func TestCalendarShareUnshareLifecycle(t *testing.T) {
 	dir := t.TempDir()
-	cfgPath := writeTestConfig(t, dir)
+	t.Setenv("NIDUS_DATA_DIR", filepath.Join(dir, "data"))
 
-	code, out := runCLI(t, "-config", cfgPath, "calendar", "share", "alice", "work", "bob", "write")
+	code, out := runCLI(t, "calendar", "share", "alice", "work", "bob", "write")
 	if code != 0 {
 		t.Fatalf("share exit code = %d, output: %s", code, out)
 	}
@@ -66,7 +47,7 @@ func TestCalendarShareUnshareLifecycle(t *testing.T) {
 		t.Errorf("output = %q, want to contain 'shared'", out)
 	}
 
-	code, out = runCLI(t, "-config", cfgPath, "calendar", "shares", "alice", "work")
+	code, out = runCLI(t, "calendar", "shares", "alice", "work")
 	if code != 0 {
 		t.Fatalf("shares exit code = %d, output: %s", code, out)
 	}
@@ -74,12 +55,12 @@ func TestCalendarShareUnshareLifecycle(t *testing.T) {
 		t.Errorf("output = %q, want to contain bob/write", out)
 	}
 
-	code, out = runCLI(t, "-config", cfgPath, "calendar", "unshare", "alice", "work", "bob")
+	code, out = runCLI(t, "calendar", "unshare", "alice", "work", "bob")
 	if code != 0 {
 		t.Fatalf("unshare exit code = %d, output: %s", code, out)
 	}
 
-	code, out = runCLI(t, "-config", cfgPath, "calendar", "shares", "alice", "work")
+	code, out = runCLI(t, "calendar", "shares", "alice", "work")
 	if code != 0 {
 		t.Fatalf("shares (after unshare) exit code = %d, output: %s", code, out)
 	}
@@ -90,9 +71,9 @@ func TestCalendarShareUnshareLifecycle(t *testing.T) {
 
 func TestCalendarShareInvalidPermission(t *testing.T) {
 	dir := t.TempDir()
-	cfgPath := writeTestConfig(t, dir)
+	t.Setenv("NIDUS_DATA_DIR", filepath.Join(dir, "data"))
 
-	code, out := runCLI(t, "-config", cfgPath, "calendar", "share", "alice", "work", "bob", "admin")
+	code, out := runCLI(t, "calendar", "share", "alice", "work", "bob", "admin")
 	if code != 2 {
 		t.Errorf("exit code = %d, want 2; output: %s", code, out)
 	}
@@ -103,9 +84,9 @@ func TestCalendarShareInvalidPermission(t *testing.T) {
 
 func TestCalendarUnshareNotFound(t *testing.T) {
 	dir := t.TempDir()
-	cfgPath := writeTestConfig(t, dir)
+	t.Setenv("NIDUS_DATA_DIR", filepath.Join(dir, "data"))
 
-	code, out := runCLI(t, "-config", cfgPath, "calendar", "unshare", "alice", "ghost", "bob")
+	code, out := runCLI(t, "calendar", "unshare", "alice", "ghost", "bob")
 	if code != 1 {
 		t.Errorf("exit code = %d, want 1; output: %s", code, out)
 	}
@@ -116,14 +97,14 @@ func TestCalendarUnshareNotFound(t *testing.T) {
 
 func TestAddressBookShareUnshareLifecycle(t *testing.T) {
 	dir := t.TempDir()
-	cfgPath := writeTestConfig(t, dir)
+	t.Setenv("NIDUS_DATA_DIR", filepath.Join(dir, "data"))
 
-	code, out := runCLI(t, "-config", cfgPath, "addressbook", "share", "alice", "contacts", "bob", "read")
+	code, out := runCLI(t, "addressbook", "share", "alice", "contacts", "bob", "read")
 	if code != 0 {
 		t.Fatalf("share exit code = %d, output: %s", code, out)
 	}
 
-	code, out = runCLI(t, "-config", cfgPath, "addressbook", "shares", "alice", "contacts")
+	code, out = runCLI(t, "addressbook", "shares", "alice", "contacts")
 	if code != 0 {
 		t.Fatalf("shares exit code = %d, output: %s", code, out)
 	}
@@ -131,7 +112,7 @@ func TestAddressBookShareUnshareLifecycle(t *testing.T) {
 		t.Errorf("output = %q, want to contain bob/read", out)
 	}
 
-	code, out = runCLI(t, "-config", cfgPath, "addressbook", "unshare", "alice", "contacts", "bob")
+	code, out = runCLI(t, "addressbook", "unshare", "alice", "contacts", "bob")
 	if code != 0 {
 		t.Fatalf("unshare exit code = %d, output: %s", code, out)
 	}
@@ -139,9 +120,9 @@ func TestAddressBookShareUnshareLifecycle(t *testing.T) {
 
 func TestUnknownUserWarningDoesNotBlockShare(t *testing.T) {
 	dir := t.TempDir()
-	cfgPath := writeTestConfig(t, dir)
+	t.Setenv("NIDUS_DATA_DIR", filepath.Join(dir, "data"))
 
-	code, out := runCLI(t, "-config", cfgPath, "calendar", "share", "alice", "work", "carol", "read")
+	code, out := runCLI(t, "calendar", "share", "alice", "work", "carol", "read")
 	if code != 0 {
 		t.Fatalf("exit code = %d, output: %s", code, out)
 	}
@@ -154,10 +135,9 @@ func TestUnknownUserWarningDoesNotBlockShare(t *testing.T) {
 }
 
 func TestNoArgsShowsUsage(t *testing.T) {
-	dir := t.TempDir()
 	// No config needed since usage() is printed before config.Load for
 	// missing subcommands.
-	code, out := runCLI(t, "-config", filepath.Join(dir, "missing.yaml"))
+	code, out := runCLI(t)
 	if code != 2 {
 		t.Errorf("exit code = %d, want 2", code)
 	}
@@ -168,9 +148,9 @@ func TestNoArgsShowsUsage(t *testing.T) {
 
 func TestUnknownCommand(t *testing.T) {
 	dir := t.TempDir()
-	cfgPath := writeTestConfig(t, dir)
+	t.Setenv("NIDUS_DATA_DIR", filepath.Join(dir, "data"))
 
-	code, out := runCLI(t, "-config", cfgPath, "bogus")
+	code, out := runCLI(t, "bogus")
 	if code != 2 {
 		t.Errorf("exit code = %d, want 2", code)
 	}

tools/nidusctl/users.go

@@ -6,7 +6,7 @@ import (
 	"os"
 	"strings"
 
-	"github.com/yourusername/caldav-server/internal/db"
+	"git.arnef.de/arnef/nidus/internal/db"
 	"golang.org/x/term"
 )
 
@@ -31,31 +31,47 @@ func runUser(dbase *db.DB, args []string) int {
 }
 
 func userCreate(dbase *db.DB, args []string) int {
-	fs := newFlagSet("nidusctl user create")
-	displayName := fs.String("display-name", "", "display name shown in DAV clients")
-	email := fs.String("email", "", "email address")
-	password := fs.String("password", "", "password (omit to be prompted, recommended)")
-	if err := fs.Parse(args); err != nil {
-		return 2
+	var displayName, email, password string
+	var rest []string
+
+	for i := 0; i < len(args); i++ {
+		switch args[i] {
+		case "--display-name":
+			if i+1 < len(args) {
+				displayName = args[i+1]
+				i++
 			}
-	rest := fs.Args()
+		case "--email":
+			if i+1 < len(args) {
+				email = args[i+1]
+				i++
+			}
+		case "--password":
+			if i+1 < len(args) {
+				password = args[i+1]
+				i++
+			}
+		default:
+			rest = append(rest, args[i])
+		}
+	}
+
 	if len(rest) != 1 {
 		fmt.Fprintln(os.Stderr, "usage: nidusctl user create <username> [--display-name NAME] [--email EMAIL] [--password PASSWORD]")
 		return 2
 	}
 	username := rest[0]
 
-	pw := *password
-	if pw == "" {
+	if password == "" {
 		var err error
-		pw, err = promptPassword(username)
+		password, err = promptPassword(username)
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "error reading password: %v\n", err)
 			return 1
 		}
 	}
 
-	if err := dbase.CreateUser(username, pw, *displayName, *email); err != nil {
+	if err := dbase.CreateUser(username, password, displayName, email); err != nil {
 		fmt.Fprintf(os.Stderr, "error: %v\n", err)
 		return 1
 	}
@@ -98,29 +114,37 @@ func userList(dbase *db.DB, args []string) int {
 }
 
 func userPasswd(dbase *db.DB, args []string) int {
-	fs := newFlagSet("nidusctl user passwd")
-	password := fs.String("password", "", "new password (omit to be prompted, recommended)")
-	if err := fs.Parse(args); err != nil {
-		return 2
+	var password string
+	var rest []string
+
+	for i := 0; i < len(args); i++ {
+		switch args[i] {
+		case "--password":
+			if i+1 < len(args) {
+				password = args[i+1]
+				i++
 			}
-	rest := fs.Args()
+		default:
+			rest = append(rest, args[i])
+		}
+	}
+
 	if len(rest) != 1 {
 		fmt.Fprintln(os.Stderr, "usage: nidusctl user passwd <username> [--password PASSWORD]")
 		return 2
 	}
 	username := rest[0]
 
-	pw := *password
-	if pw == "" {
+	if password == "" {
 		var err error
-		pw, err = promptPassword(username)
+		password, err = promptPassword(username)
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "error reading password: %v\n", err)
 			return 1
 		}
 	}
 
-	if err := dbase.SetPassword(username, pw); err != nil {
+	if err := dbase.SetPassword(username, password); err != nil {
 		fmt.Fprintf(os.Stderr, "error: %v\n", err)
 		return 1
 	}

web/static/files.js

@@ -9,6 +9,7 @@
     const filesInput = document.getElementById("upload-files-input");
     const folderInput = document.getElementById("upload-folder-input");
     const newFolderButton = document.getElementById("new-folder-button");
+    const sortSelect = document.getElementById("sort-select");
     const status = document.getElementById("upload-status");
     if (!dropZone) {
         return;
@@ -25,11 +26,6 @@
         }
         const formData = new FormData();
         for (const file of files) {
-            // A folder-selected/dropped file's relative path (e.g.
-            // "photos/2024/img.jpg") is sent as a parallel "paths" field
-            // (same order as "files") since the server strips any
-            // directory component from the file's own filename per the
-            // multipart spec — see internal/web/files.go.
             const relPath = file.webkitRelativePath || file.name;
             formData.append("files", file, file.name);
             formData.append("paths", relPath);
@@ -56,7 +52,7 @@
         void upload(Array.from(folderInput.files || []));
         folderInput.value = "";
     });
-    const folderNameRe = /^[a-zA-Z0-9_-]{1,64}$/;
+    const folderNameRe = /^[a-zA-Z0-9._-]{1,64}$/;
     newFolderButton?.addEventListener("click", async () => {
         const name = window.prompt("New folder name:");
         if (!name) {
@@ -106,10 +102,22 @@
             }
         });
     });
-    // Recursively walk a dropped DataTransferItem (file or directory) into
-    // a flat list of File objects, using the browser's non-standard but
-    // widely-supported webkitGetAsEntry/FileSystemEntry APIs to support
-    // dragging & dropping whole folders.
+    if (sortSelect) {
+        sortSelect.addEventListener("change", () => {
+            const value = sortSelect.value;
+            let sortBy = "name";
+            let sortDir = "asc";
+            if (value === "name_asc") {
+                sortBy = "name";
+                sortDir = "asc";
+            }
+            else if (value === "name_desc") {
+                sortBy = "name";
+                sortDir = "desc";
+            }
+            window.location.href = `${uploadUrl}?sort_by=${sortBy}&sort_dir=${sortDir}`;
+        });
+    }
     function readEntry(entry) {
         return new Promise((resolve) => {
             if (entry.isFile) {
@@ -163,8 +171,6 @@
             }
         }
         if (entries.length === 0) {
-            // Fallback for browsers without webkitGetAsEntry support: flat
-            // files only, no folder traversal.
             void upload(Array.from(e.dataTransfer?.files || []));
             return;
         }

web/ts/files.ts

@@ -8,6 +8,7 @@
 	const filesInput = document.getElementById("upload-files-input") as HTMLInputElement | null;
 	const folderInput = document.getElementById("upload-folder-input") as HTMLInputElement | null;
 	const newFolderButton = document.getElementById("new-folder-button") as HTMLButtonElement | null;
+	const sortSelect = document.getElementById("sort-select") as HTMLSelectElement | null;
 	const status = document.getElementById("upload-status") as HTMLParagraphElement | null;
 	if (!dropZone) {
 		return;
@@ -27,11 +28,6 @@
 		}
 		const formData = new FormData();
 		for (const file of files) {
-			// A folder-selected/dropped file's relative path (e.g.
-			// "photos/2024/img.jpg") is sent as a parallel "paths" field
-			// (same order as "files") since the server strips any
-			// directory component from the file's own filename per the
-			// multipart spec — see internal/web/files.go.
 			const relPath = (file as File & { webkitRelativePath?: string }).webkitRelativePath || file.name;
 			formData.append("files", file, file.name);
 			formData.append("paths", relPath);
@@ -61,7 +57,7 @@
 		folderInput.value = "";
 	});
 
-	const folderNameRe = /^[a-zA-Z0-9_-]{1,64}$/;
+	const folderNameRe = /^[a-zA-Z0-9._-]{1,64}$/;
 
 	newFolderButton?.addEventListener("click", async () => {
 		const name = window.prompt("New folder name:");
@@ -112,10 +108,22 @@
 		});
 	});
 
-	// Recursively walk a dropped DataTransferItem (file or directory) into
-	// a flat list of File objects, using the browser's non-standard but
-	// widely-supported webkitGetAsEntry/FileSystemEntry APIs to support
-	// dragging & dropping whole folders.
+	if (sortSelect) {
+		sortSelect.addEventListener("change", () => {
+			const value = sortSelect.value;
+			let sortBy = "name";
+			let sortDir = "asc";
+			if (value === "name_asc") {
+				sortBy = "name";
+				sortDir = "asc";
+			} else if (value === "name_desc") {
+				sortBy = "name";
+				sortDir = "desc";
+			}
+			window.location.href = `${uploadUrl}?sort_by=${sortBy}&sort_dir=${sortDir}`;
+		});
+	}
+
 	function readEntry(entry: FileSystemEntry): Promise<File[]> {
 		return new Promise((resolve) => {
 			if (entry.isFile) {
@@ -170,8 +178,6 @@
 			}
 		}
 		if (entries.length === 0) {
-			// Fallback for browsers without webkitGetAsEntry support: flat
-			// files only, no folder traversal.
 			void upload(Array.from(e.dataTransfer?.files || []));
 			return;
 		}