When I start it up on MacOS Bigsur it says the following:
"

dyld: Library not loaded: /usr/local/opt/sdl2_mixer/lib/libSDL2_mixer-2.0.0.dylib

  Referenced from: /Users/mnarasheed/Downloads/PX8-0.0.5-osx/px8

  Reason: image not found

[1]    1594 abort      /Users/mnarasheed/Downloads/PX8-0.0.5-osx/px8

"

I would love to hear any response.