Jellyfin

JellyBox is a native cross-platform music player for Jellyfin, Emby, and Navidrome servers, developed by ProdigyTech Inc. It connects to music libraries through the servers' APIs, supports browsing and searching albums, artists, genres, playlists, and songs, and provides playback with queue management, transcoding profiles, time-synced lyrics, ListenBrainz scrobbling, and playback-position memory. Albums and tracks can be downloaded for offline listening, with a full offline mode and progressive caching. The interface includes album-art-derived colour schemes, platform-specific layouts, Studio Mode, media-key and system playback controls, AirPlay, DLNA/UPnP casting, Apple CarPlay, and Android Auto. It is distributed for macOS, Windows, Linux, iOS/iPadOS, and Android; it is a client rather than a server and requires access to a supported music server. The source code is licensed under GNU AGPL-3.0.

Halcyon Video is a self-hosted 3D media-library interface that connects to Jellyfin or Plex and procedurally presents a collection as a walkable video-rental store. Built with Vite, TypeScript, and three.js, with an optional Tauri wrapper, it turns libraries into aisles, genres into signposted sections, duplicate quality versions into stacks behind a face copy, and low-rated titles into a Bargain Bin. Users can browse shelves, inspect front and back cover artwork, take cases to a checkout counter, and play titles through its player or MPV in a simulated living room and VCR; WebXR walk mode and a CSS-based 2.5D mode are also available. Era, lighting, floor plan, and VHS-or-DVD presentation are independent settings. Branding can change the store name, colors, emblem, typeface, signs, cases, endcaps, aisle markers, shelving, checkout area, and clerk uniform; a logo.svg or transparent PNG in the user-assets folder can provide the emblem and derive house colors. The project supports Docker, browser use, dedicated-HTPC operation, remote browser playback with a TURN relay, and RomM game libraries. Its browser demo includes a synthetic catalog of roughly 2,000 titles and can use several gigabytes of memory and substantial GPU resources, while shelving personal files requires Jellyfin or Plex rather than a built-in folder scanner.

Plex is a media server and streaming platform developed by Plex, Inc. Its Plex Media Server indexes and serves users' personal media (video, audio, photos) to native client apps and the web, and Plex also provides an ad-supported on-demand catalog plus live TV and DVR features. The server is distributed for Windows, macOS, Linux, many NAS devices and Docker, client apps run on web, iOS, Android, smart TVs, streaming boxes and consoles, and the service is offered freemium with an optional Plex Pass subscription for features such as mobile sync, hardware-accelerated transcoding, and premium music features.

Plezy is an open-source cross-platform client for Plex, Jellyfin, and Emby, built with Flutter for desktop, mobile, and TV. It provides library, collection, playlist, watchlist, recommendation, and cross-server search views, along with media playback supporting direct play or transcoding, HDR and Dolby Vision, multiple codecs, customizable subtitles, playback progress synchronization, and external players. The client also supports music playback, offline downloads, live TV and DVR, synchronized watching, and integrations with services including Trakt, MyAnimeList, AniList, Simkl, and Seerr.

FFmpeg is a collection of libraries and command-line tools for processing multimedia content, including audio, video, subtitles, and related metadata. Its libraries provide codec implementations, streaming and container-format handling, filtering through directed graphs, device access, audio mixing and resampling, and image scaling and color conversion. The toolset includes ffmpeg for manipulating, converting, and streaming media, ffplay for playback, and ffprobe for inspecting media content. The codebase is mainly licensed under the LGPL, with optional components under the GPL. The repository is an official mirror of the FFmpeg project's Git repository; the project directs contributors to submit patches through its mailing list rather than GitHub pull requests.