I'm not able to download the game for Linux with the itch.io client even though the download for Linux on the website is there and I can get it through a web browser. When I click the download button in the itch.io client however, the "install" field is empty, and when I click on it, the dropdown is just an empty blank bar. When I click install, it says there are no compatible uploads to choose from. Sounds like the versions might not be tagged correctly as being for the different platforms? Other game demos work just fine and show the "install" box populated, like https://oxopotion.itch.io/flip-book for example.
Regardless, would love to see the full game here on itch.io too!