Settings Sync

Settings Sync

Moonbase stores each user's preferences on the server and shares them across every Moonfin client, so your setup follows you between devices.

Direction: bidirectional, local wins on conflict.

How it works at a glance

• Each client keeps a local copy of your settings and pushes changes to the server.
• On startup a client fetches the server copy and merges it with its local copy.
• A snapshot of the last synced state is kept locally so the merge can tell what each side changed.
• Clients connected to the live events stream (/Moonfin/Settings/Stream) pick up changes, theme updates, and admin messages without a restart.

The settings envelope

Settings are stored per user in a profiled envelope. Version 2 splits values into a shared global profile plus optional per-device overrides.

{
  "schemaVersion": 2,
  "lastUpdated": 1740200000000,
  "lastUpdatedBy": "desktop",
  "syncEnabled": true,
  "global":  { "...": "base settings that every device inherits" },
  "desktop": { "...": "overrides for desktop only" },
  "mobile":  { "...": "overrides for mobile only" },
  "tv":      { "...": "overrides for TV only" }
}

Field	Type	Description
schemaVersion	int	2 for the profiled format. Older flat (v1) files are migrated automatically on load
lastUpdated	long	When the envelope was last saved, in epoch milliseconds
lastUpdatedBy	string	The client id that last wrote it
syncEnabled	bool	Whether server sync is on for this user
global	profile	Base values that all devices inherit
desktop, mobile, tv	profile	Sparse overrides that apply only on that device type

Valid profile names are global, desktop, mobile, and tv. Device profiles only store the values you actually changed for that device, so anything you leave alone keeps flowing from global.

Resolution order

When a client asks for the resolved value of a setting, the server returns the first value that is set, in this order:

1. The device profile (desktop, mobile, or tv), unless you asked for global
2. The global profile
3. The admin default settings

If none of those set a value, the field stays empty and the client falls back to its own built-in default.

Startup and merge behavior

On startup a client pings /Moonfin/Ping to confirm the plugin is installed and sync is on, then fetches /Moonfin/Settings. What happens next depends on what already exists:

• Local and server both exist, with a snapshot: a three-way merge. For each setting, if only one side changed, that change is kept. If both sides changed the same setting, the local value wins.
• Local and server both exist, no snapshot: first sync on this client. Local wins, then the merged result is pushed back to the server.
• Server only (fresh install or new browser): the server settings are restored locally. This is how your settings carry over to a new client.
• Local only: the local settings are pushed to the server.

After merging, the result is saved as the new snapshot for next time. Every settings change also saves locally right away and, when the server is reachable, pushes to the server.

Cross-client and admin behavior

• Opening Moonfin on a new device with no local settings pulls everything from the server.
• Changing a setting on one client pushes it to the server, and the next client to load merges it in (with local winning if both changed the same value).
• Push Defaults to Existing Users updates the stored global values and emits a live update so connected clients re-resolve immediately.
• Admin broadcasts are delivered over the same live stream.

Limitations

• The three-way merge handles most cases, but when two clients change the same setting, local wins.
• Live updates only reach clients currently connected to the events stream. Others catch up on their next startup.
• Sensitive values like mdblistApiKey are stored on the server per user.

Synced settings

Every value below can be set on global and optionally overridden per device profile. Names are the JSON property names.

Integrations

Setting	Type	Description
seerrEnabled	bool	Enable Seerr integration
seerrApiKey	string	Seerr API key
seerrBlockNsfw	bool	Hide adult results from Seerr
seerrRows	object	Which Seerr discovery rows show and their order
mdblistEnabled	bool	Enable MDBList ratings
mdblistApiKey	string	MDBList API key
mdblistRatingSources	list	Which rating sources to pull from MDBList
mdblistShowRatingNames	bool	Show the rating source names
mdblistShowRatingBadges	bool	Show rating badges
tmdbApiKey	string	TMDB API key
tmdbEpisodeRatingsEnabled	bool	Enable per-episode ratings from TMDB

The jellyseerr* names (jellyseerrEnabled, jellyseerrApiKey, jellyseerrBlockNsfw, jellyseerrRows) are legacy aliases backed by the same values as their seerr* equivalents.

Navbar and appearance

Setting	Type	Description
navbarPosition	string	Navbar placement (top or side)
navbarColor	string	Navbar color
navbarOpacity	int	Navbar opacity
navbarAlwaysExpanded	bool	Keep the navbar expanded
focusColor	string	Accent color for focused items
visualTheme	string	Selected built-in theme
customThemeId	string	Selected custom theme id
watchedIndicator	string	Style of the watched indicator
cardFocusExpansion	bool	Expand cards when focused
posterSize	string	Poster size
seasonalSurprise	string	Seasonal particle effect
backdropEnabled	bool	Show backdrops
browsingBlur	string	Blur behind browsing screens

Details screen

Setting	Type	Description
detailScreenStyle	string	Detail screen layout variant
detailExpandedTabs	bool	Show the detail screen tabs expanded
useDetailedSubHeadings	bool	Use detailed sub-headings
detailsScreenBlur	string	Detail screen backdrop blur
detailsBackdropBlur	int	Detail backdrop blur amount
detailsBackdropOpacity	int	Detail backdrop opacity

Toolbar buttons

Setting	Type	Description
showShuffleButton	bool	Show the shuffle button
showGenresButton	bool	Show the genres button
showFavoritesButton	bool	Show the favorites button
showCastButton	bool	Show the cast button
showSyncPlayButton	bool	Show the SyncPlay button
showLibrariesInToolbar	bool	Show libraries in the toolbar
shuffleContentType	string	What shuffle pulls from (movies, tv, both)

Media bar

Setting	Type	Description
desktopMediaBarProvider	string	Which provider backs the desktop media bar
mediaBarMode	string	Media bar mode
mediaBarSourceType	string	Source type (library or collection)
mediaBarLibraryIds	list	Library ids feeding the media bar
mediaBarCollectionIds	list	Collection ids feeding the media bar
mediaBarExcludedGenres	list	Genres to exclude
mediaBarItemCount	int	Number of items
mediaBarOpacity	int	Overlay opacity
mediaBarOverlayColor	string	Overlay color
mediaBarAutoAdvance	bool	Auto-advance slides
mediaBarIntervalMs	int	Auto-advance interval in milliseconds
mediaBarTrailerPreview	bool	Play trailer previews
mediaBarTrailerAudio	bool	Enable trailer audio
episodePreviewEnabled	bool	Enable episode previews
previewAudioEnabled	bool	Enable preview audio

Home rows

Setting	Type	Description
homeSections	list	The full home layout, including dynamic plugin sections. Newer clients prefer this
homeRowOrder	list	The legacy ordered list of built-in rows
homeRowsStyle	string	Home rows rendering style
homeRowsImageType	string	Home rows image type (poster, thumb, banner)
homeRowsImageTypeOverride	bool	Override the home rows image type
homeImageTypeContinueWatching	string	Image type for the Continue Watching row
homeImageUseSeriesImage	bool	Use the series image instead of the episode image
fullScreenRows	bool	Full-screen home rows
mergeContinueWatchingNextUp	bool	Merge Continue Watching with Next Up
displayFavoritesRows	bool	Show favorites rows
displayCollectionsRows	bool	Show collections rows
displayGenresRows	bool	Show genres rows
displaySeerrRows	bool	Show Seerr rows
displayPlaylistsRows	bool	Show playlists rows
displayAudioRows	bool	Show audio rows
favoritesRowSortBy	string	Sort order for favorites rows
collectionsRowSortBy	string	Sort order for collections rows
genresRowSortBy	string	Sort order for genres rows
genresRowItemFilter	string	Item filter for genres rows

Since You Watched and Rewatch rows

Setting	Type	Description
displaySinceYouWatchedRows	bool	Show Since You Watched rows
sinceYouWatchedSource	string	Source for those rows
sinceYouWatchedSourceType	string	Source type
sinceYouWatchedSourceItem	string	Specific source item
sinceYouWatchedNumRows	int	How many rows to show
sinceYouWatchedIncludeWatched	bool	Include already-watched items
displayRewatchRow	bool	Show the rewatch row
rewatchSortBy	string	Sort order for the rewatch row
rewatchIncludeMovies	bool	Include movies
rewatchIncludeShows	bool	Include shows
rewatchIncludeCollections	bool	Include collections

Library and playback

Setting	Type	Description
enableMultiServerLibraries	bool	Aggregate libraries across servers
enableFolderView	bool	Enable folder view
confirmExit	bool	Ask before exiting
blockedRatings	list	Content ratings to hide
themeMusicEnabled	bool	Enable theme music
themeMusicOnHomeRows	bool	Play theme music on home rows
themeMusicVolume	int	Theme music volume
themeMusicLoop	bool	Loop theme music
hiddenContinueWatchingItems	string	Items hidden from Continue Watching
hiddenNextUpSeries	string	Series hidden from Next Up

Note: not every client uses every setting yet. The server stores the full set. Each client reads and writes the ones it supports and preserves the rest untouched.