It’s basically a self-hosted stream that moonlight connects to within your network. github.com/LizardByte/Sunshine/releasesYou still need any and all software that’ll actually be running on the server, but you can use sunshine either for streaming particular applications from it or just as a general all purpose remote access tool. So it’s like Parsec, only FOSS and imo works better too.
Switched to sunshine+moonlight from steam remote play. Works much better, especially on low end clients. And as a bonus you have full access, not just for steam.