Is it eventually going to be available on mobile?
About mobile, and Mac or Linux versions too, I plan to start working on those.
I'll probably test them on Patreon first to see if everything runs properly, since I don't have a Mac or Linux setup myself, and I don't have an Android device to test on either.
So it could be useful to have Patreon supporters try those builds first and check that the game works on those platforms.
But yes, I do think the game will get those versions at some point.