For me on Debian Testing, the linux release was flawless, started up with no problem and recognized my iBuffalo SNES-controller, I did not even have to remap any buttons! And it even recognizes it if I plug it in after I've started the game. This is a superb linux release, and I thank you very much for it.
I bought it on Itch even though I have to pay an extra 25% VAT, to support the developer (more money goes to you right, compared to say Steam?) and I am very happy I did, the game is just awesome, perfect controls, well thought trough dialogue and presentation and story. Touching! I played the PICO-8 version a while ago, and I am happy you could release it as a "real" game, and that it is so great.
And yeah, perfect linux support for me at least.