Hey there, Waylon.
Thanks for your support! It's heartening that you've made a commitment to support the project before being able to play it. I must admit, I don't have any current plans to distribute the demo to Linux. If I find some time, I can do a very quick export through Unity to see what comes out but, as I don't have a Linux machine, I can't attest to the game's stability on the platform and won't have a path to resolving any issues that will likely arise. There are already a few cross-platform problems that I have to address between Mac and Windows, so I wouldn't be surprised if Linux drags its feet one way or another.
Feel free to subscribe to this thread, I'll likely respond here again if I get around to trying a Linux build.
Thanks for reaching out, and for understanding.