Hey hey! I feel good about this game concept, I'd say. At the beginning I was very lost and a bit panicked, but once I figured out how the mechanics work, I got a handle on it rather quickly. The way codes are announced is just the right level of stressful and confusing. I think this is a fun concept to develop further, with more complications and room mechanics.
Also, thanks for including a Linux build, that's always nice to see.