I'm on a MacBook and the app immediately closes when I try to open it. No errors are given. I held control to allow the app to bypass the security warning, but it still doesn't work.
Apologies, I build and test the Mac version on an old 2013 MacBook that's still on like El Capitan or something, so my ability to test different setups is limited.
This person forked Playscii on github at some point and doesn't seem to have made any major changes other than making sure it builds on their system, so you might want to try that version: https://github.com/michael-lazar/playscii