I make the specification of non-linux because otherwise this would just become a thread full of obscure distros that do the same thing as a million other distros.
Some lesser known OSs:
- AROS - based on Amiga OS, has some derivatives like IcarOS and MorphOS
- Haiku - based on BeOS
- Redox - Unix-like, made in Rust (might technically count as linux?)
- Serenity - Unix-like, very late 90s look and feel
- Kolibri - Tiny OS, the image is ~44MB. It also has a smaller version that fits in a single floppy.
- PhantomOS - When 3 Russians decide to turn everything about a typical OS upside down.
It is literally the integration portion. You setup your video editor to use
desktop:videocard:0and all your rendering is just done there but displayed onlocal:display:0. All of your resources you own can be tied together in whatever use case you have. Have a house wide sound system then target that as our audio out when playing music from your media player app by just selecting the appropriate sound card output that happens to be on another machine.