Controller support seems borked in the Linux version, I have an xbox compatible controller that is more or less plug and play with a vast majority of modern-ish games but all I can get to work is basic navigation in the menus (using the Y button as select for some reason).
Also a big frustration I recall from the last time I played (on the Windows version, where the controller did work) is that menus couldn’t be backed out of via B, and you rather had to select a “back” option.
I recall this behavior specifically resulting in me buying upgrades I didn’t want multiple times (which to be fair, is mostly my own clumsiness) but having to manipulate the cursor just to back out of a menu feels Evil after playing so many games that make it a simple process of mashing B until I’m playing the game again.
This project is easily one of the more intriguing of the genre, excited to see it develop.