services.homepage-dashboard runs the nixpkgs package with DynamicUser,
replacing the :latest container, its system user and the activation
script that rsynced the YAML into place. The YAML stays as is and is
linked into /etc/homepage-dashboard.
Assisted-by: Claude Code (claude-opus-5-5)
`just test` has enforced the suite result since #350: the recipe raises unless
`evalTests` is `true`, so a zero exit already means pass. Update the places that
still described the old raw-`nix eval` behaviour: AGENTS.md, README.md,
SECURITY.md, outputs/README.md, and the nix-config-debug / nix-config-new-host /
nix-config-update skills.
The exit-0 caveat is kept only where the raw `nix eval .#evalTests` command is
documented, because that command genuinely exits 0 even on `false`.
Add Immich via the native nixpkgs services.immich module on youko, reusing the host PostgreSQL 16 (pgvector + vectorchord) and a shared Valkey instance for Redis-compatible caching and BullMQ queues (Dragonfly rejected BullMQ's dynamic Lua keys). Media lives on the encrypted HDD at /data/apps/immich; Caddy publishes immich.writefor.fun with a publicly-trusted Let's Encrypt cert (security.acme + Cloudflare DNS-01) so the mobile app connects. OTEL metrics are scraped by VictoriaMetrics, and /var/cache is now preserved on the tmpfs-root hosts so the ML model cache survives reboots.