curl --request GET \
  --url https://api.rocksky.app/xrpc/app.rocksky.mirror.getMirrorSources \
  --header 'Authorization: Bearer <token>'

{
  "sources": [
    {
      "provider": "<string>",
      "enabled": true,
      "hasCredentials": true,
      "externalUsername": "<string>",
      "lastPolledAt": "2023-11-07T05:31:56Z",
      "lastScrobbleSeenAt": "2023-11-07T05:31:56Z"
    }
  ]
}