itch.io

Uhh... aren't there a Linux version already? Downloading it right now, will edit this reply with results

UPD: Just noticed that Linux build was added as a part of 0.2.0, which was released later than the comment above, sorry

Seems like it runs on top of actual repos created locally. I was able to find a temp repo with the game files, plus git command was localized to my language. As a bonus, MacOS users have to install git to run this game. On linux machines it's available out of the box if i remember correctly