Obsidian Sync Station

🤖 Built with AI — disclosed openly. This project is developed with heavy assistance from AI (Anthropic's Claude, via Claude Code): code, tests, and documentation. This is stated up front, not hidden. It's used for a personal homelab; review the code yourself before trusting it with your data, and treat it accordingly. Issues and PRs are welcome.

A small Docker container with a web UI that keeps an Obsidian vault synced using Obsidian's official headless Sync client — no LiveSync/CouchDB, no VNC/GUI container, no third-party sync protocol. Built for Unraid, runs anywhere Docker does.

Independent, unofficial project. Not affiliated with Obsidian. Requires an active Obsidian Sync subscription. See NOTICE.md.

Why

Obsidian Sync is proprietary: no self-hosted server, no REST API. In February 2026 Obsidian shipped an official headless client (obsidian-headless, the ob CLI) that runs the real sync from the command line. This project wraps it in a configurable web UI and packages it for a server, so a vault stays continuously synced and (optionally) backed up on your own hardware.

Features

• Official, headless Obsidian Sync — no LiveSync/CouchDB, no VNC/GUI container.
• Web UI (Obsidian-style dark/purple), LAN-only, gated by its own password.
• Obsidian login (email / password / MFA), vault picker, optional end-to-end decryption password.
• Two sync modes: continuous (live, ~30s) or every N minutes — supervised with auto-restart, live status and log tail.
• Local backups (BACKUP=true): scheduled tar.gz snapshots with retention, run-now, and a snapshot list.
• Off-box mirror (MIRROR=true): copy each snapshot to a second volume.
• Encrypted off-site backups via restic (local path or cloud: S3/B2/SFTP).
• Restore a snapshot to a safe staging area or over the live vault.
• ntfy notifications on backup/sync events.
• Unraid listed in Community Applications + prebuilt multi-arch image on GHCR.

Install on Unraid

Open Apps (Community Applications), search for obsidian-sync-station and install it.

The CA template is maintained in the repository benjaminmue/unraid. To add the container without CA, use the Docker tab → Add Container and paste that template URL: https://raw.githubusercontent.com/benjaminmue/unraid/main/templates/obsidian-sync-station.xml

After installing:

1. Adjust the paths (/vault should be its own dedicated share), set Enable Backup if you want backups (and map /backup), then Apply.
2. Open the WebUI, set an access password, log in to Obsidian, pick your vault.

The image is published to GHCR: ghcr.io/benjaminmue/obsidian-sync-station:latest.

Sync mode

In the Sync card you can choose how syncing runs:

• Continuous (default) — Obsidian's own live watcher (ob sync --continuous), which polls roughly every 30 seconds.
• Every N minutes — the station runs a one-shot ob sync on a timer instead (set the interval, e.g. 5 minutes). Lighter, for people who don't need near-realtime sync.

Changing the mode re-applies immediately if sync is currently running.

Backups

Set BACKUP=true and map a /backup volume to your storage. A "Backup" card appears in the UI where you set the cron schedule (default 0 3 * * *) and how many snapshots to keep. Snapshots are tar.gz archives of the vault contents; older ones beyond the retention count are pruned automatically.

Mirror (off-box copy)

Set MIRROR=true and map a /mirror volume (a different disk or a remote share mounted on the host) to copy every new snapshot there as well, pruned by the same retention. For encrypted or cloud off-site copies, see restic.

Restore

Each snapshot in the UI has two restore actions:

• To staging — extracts into /config/restores/<snapshot>/ for inspection. Safe; never touches the live vault.
• To vault — extracts over the live vault. Destructive: sync is stopped and left stopped. When you restart sync, the restored state is pushed to Obsidian's remote and may overwrite newer changes. Requires an explicit confirmation.

Off-site backup (restic)

Set RESTIC_REPOSITORY and RESTIC_PASSWORD to also back the vault up to an encrypted restic repository — a local path, or cloud storage (S3, Backblaze B2, SFTP, …) via the usual restic backend env vars. It runs automatically after each local backup and keeps the newest N snapshots (same retention). A "Off-site backup (restic)" card in the UI shows status, snapshots, a run-now button, and restore-to-staging. The restic repo is encrypted independently of the vault's own encryption.

Notifications

Set an ntfy topic URL (NTFY_URL or in the UI) to get push notifications on successful backups and on backup/sync failures. Toggle each event in Settings. Public topics need no token; for an auth-protected ntfy server set an access token (NTFY_TOKEN or the masked field in the UI) — it's sent as a Bearer token.

Run it (local / any Docker host)

docker compose up --build

Then open http://localhost:8080, set an access password, log in to Obsidian, pick your vault, and start syncing.

Volumes

Environment

Important

• Never run the Obsidian desktop app against the same vault path at the same time — the official client warns this causes conflicts. Give the container its own dedicated path.
• With end-to-end encryption, ob decrypts locally and writes plaintext to /vault (and therefore to backups). Choose your storage accordingly.
• Do not expose the web UI to the internet. It holds your Obsidian credentials.

How the proprietary client is handled

obsidian-headless is proprietary (published UNLICENSED). This image does not bundle it. The container installs it from the official npm registry on first start, into the /config volume. Only this project's own MIT-licensed code is distributed. See NOTICE.md.

License

MIT (this project's code only). See LICENSE and NOTICE.md.