@HopperMCS @Yoruka @rher @Zergling_man ffmpeg is free software, but Jellyfin isn't just ffmpeg.

Both GNU and Linux make no effort to replicate Unix's functionality - all they implemented was the library support required to get existing free software to compile.

Unix software had things like arbitrary file-size limits and loaded things into RAM in chunks, while GNU software was designed to be incompatible and have no such limits and also read whole files straight into memory - making GNU more reliable and faster than Unix ever was.