Hi,
The game is fully compatible with Steam Deck and Linux; it's not native, but uses Proton.
Why isn't it native?
Because right now it's easier for me to work on a single version to ensure the highest quality. However, I do not exclude that the game could have a native Linux version in the future, I use Steam Deck and also Linux (Arch) a lot and I really want to have a native version.
I've tested several Protons, from the experimental to the GE. I've had no compatibility issues. The controls are fully mapped. The resolution is also native 1280 x 800, with the option to also use 1280 x 720.
For the interface and the text, I worked to make them scalable and readable as possible.
For performance, I tested the game extensively, trying to ensure the smoothest experience possible.
I'm always available for any questions, feedback, or problems. In fact, I am very interested in your feedback to improve more and more. I'll work hard to continue improving it.