This is a 2 in 1 topic. I like pico8, but there's something extra about PQ93 that caught my attention. Not sure how to explain yet. Are there any project page/forum to find some of the games made in this? 

For the linux crash part, I just tried launching and it didn't even open. Sent a report through the itch io report system. Also, a shame that the raspberry projector/port is on ice for now :c

Welcome! I'm glad you like the project :)

Currently, PQ93 is very young, obscure, and prototypical, and needs a lot of polish and bug fixes. I haven't seen any PQ93 games posted anywhere.

For the Linux problems: I think my AppImage is borked. I have not had an opportunity to fix it yet. When I have an appropriate chunk of free time, I will attempt to fix the Linux build.

Currently I can make no promises about when that will be.

Apologies.