Media player engine for iOS, tvOS, macOS and visionOS. FFmpeg demux, VideoToolbox / dav1d / libavcodec decode (HEVC, H.264, AV1, VP9, MPEG-2, VC-1), live TV with DVR timeshift and hardware deinterlace, Dolby Atmos passthrough, HDR10 / HDR10+ / Dolby Vision / HLG, text + bitmap + teletext subtitles, plus a lean audio-only path. You ship the UI.
Multi-seat game streaming on Linux: several people play on one PC at the same time, each in an isolated container with their own Sway, Sunshine and Steam account, streamed to their own Moonlight client. Shared game library, strict input isolation, resolution and framerate per client.