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Mirroring is the lighter-touch alternative to fully migrating off another scrobbler. You keep your existing setup exactly as it is — Rocksky just pulls new plays from your account on the other service and re-publishes them as scrobbles on your account.

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How it differs from migrating

Pick mirroring when you want Rocksky alongside an existing scrobbler. Pick migrating when you’re ready to point your clients directly at Rocksky and stop double-writing.

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Supported sources

Last.fm

Polls user.getRecentTracks every 30 seconds.

ListenBrainz

Polls /user/{name}/listens every 30 seconds.

Teal.fm

Real-time via AT Protocol Jetstream — no polling, no credentials.

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How it works

  1. You enter your username (and an API key, for Last.fm and ListenBrainz) on the Mirrors page and flip the Mirror enabled toggle.
  2. Credentials are encrypted at rest with XSalsa20-Poly1305 before being written to the database.
  3. A background worker picks up the new source within a few seconds and starts polling (or, for Teal.fm, subscribing to Jetstream).
  4. Each play newer than the last-seen watermark runs through a ±120-second dedup check against your existing scrobbles. Anything genuinely new is published as app.rocksky.scrobble.createScrobble.
  5. On first enable, the watermark is seeded 24 hours in the past — so you get a one-day backfill rather than only future plays.

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Disabling

Flip the toggle off and the worker stops polling within a poll cycle (≤30s). Your stored credentials stay encrypted in the database so you can re-enable later without re-entering them. Clear them by saving an empty API key.

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FAQ

Will I get duplicate scrobbles if my client also writes directly to Rocksky? No. The dedup check looks ±120 seconds around each candidate play and skips anything already in your scrobble history from another source. What happens if my API key expires or is revoked? The worker logs the auth failure and stops polling that source. Save a new key on the Mirrors page to resume. Can I mirror more than one source at once? Yes. Each provider runs independently — enable any combination.