the experimental version is straight from devs. it runs on python so if you don't know anything abt it it doesn't really work. i posted it so that if this doesn't work they can use the other version.
"Experimental version" has not been a thing for several months now and is now called developmental version. You also cannot get official tech support on the discord with source versions, and this guide is generally a bit outdated and not really the best way to play the game, even if you want to play source versions.