There's Arcan: https://github.com/letoram/arcan https://github.com/letoram/arcan . In the words of the developer, it is a "multimedia engine" (a combination of

There's Arcan: https://github.com/letoram/arcan https://github.com/letoram/arcan . In the words of the developer, it is a "multimedia engine" (a combination of display server, game engine and multimedia framework). It is an interesting project and the YouTube presentation is pretty convincing: https://m.youtube.com/watch?v=07nqZIFRDJg https://m.youtube.com/watch?v=07nqZIFRDJg A great example of what a motivated and disciplined developer can achieve.