Security (P0):
- Remove committed session-secret default; auto-generate and persist a
random secret to the config volume when SESSION_SECRET is unset
(prevents forgeable session cookies / auth bypass).
- Validate playlist names to a safe charset and render sldl configs via
literal Python substitution instead of sed (closes a command-injection
and path-traversal path through playlist names).
- shlex-quote credential values written to shell-sourced env files, and
strip newlines from values patched into .conf files.
- Render playlist .conf files 0600; warn at startup if the master key is
co-located with the config volume; document keeping it separate.
Portability:
- Configurable timezone via TZ (default UTC) instead of hardcoded Edmonton.
- Remove personal defaults (navidrome user "andrew", ephemeral.club URLs).
- Ship generic example seeds; move the cross-album dedup keep-list and the
legacy playlist import to editable config files; drop the personal
_upgrade.csv.
- Generic VPN reference in docker-compose.snippet.yml.
First-run experience:
- Redirect to /setup instead of 500 when OIDC is unconfigured; surface a
missing master key inline; entrypoint exits with an actionable message
when the config folder is not writable.
- Add unauthenticated /health (JSON) and /setup (checklist) diagnostics.
Docs:
- Write docs/ARCHITECTURE.md and docs/MIGRATION.md (previously referenced
but missing); expand README with ownership, backups, advanced settings,
and migration guidance.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>