Lol, first time I looked at this entry there was no Linux build. I just finished preparing my own and now I see that in the meantime you added your own one already.
Two things that caught my eye while preparing for the build:
* There is a leftover meta file in Assets/Effects/KenneyParticles/Unity Samples/
* The gitignore needs some cleanup, about the first 50 lines appear to be some accidental paste from the discord chat?