KytyPS5Windows, Linux and macOS are all struck from the same RPCS5 release. Pick the build your computer runs and start testing PS5 games on hardware you already own.
Your operating system is the only thing this page asks for.
It is early, and it is real: KytyPS5 boots PS5 titles on desktop hardware, and the list grows with every RPCS5 release. What usually costs an evening is the hunt for the right build across forums, threads and mirrors. That part is done here. The installer for your operating system sits behind one button, open source, and you decide what to test first.