I just installed the Linux version on Ubuntu 18.04 after mucking around with it a bit in the web version a bit. It's a fun and cool 'game'. Unfortunately I ran into a annoying bug. I try changing the brain size to '4' layers instead of 3. But anything I type gets dupplicated. So if I enter '4' it actually becomes '44' (which is way too many layers :-).
I even tried to work around it using copy-paste, first typing '4' in a text editor and copy-pasting from there. But even that ends up entering '44'.
So annoying! So I hope you'll fix it.
Cheers.