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Delfin vs Jellyfin MPV Shim: catalog facts
Delfin	Jellyfin MPV Shim
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0 licence.
Linux	Windows, Linux
Native GTK4 and Libadwaita interface Streams movies and TV shows from Jellyfin	Plays Jellyfin media through MPV Offline sync for watching without the server
Needs an existing Jellyfin server Linux only	Requires a Jellyfin server Not a full library browser on its own
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.