Works in MacOS with a different path designation

[estefan3112]

Hi, great work, at least in MacOS, the path to glsl_shader_mame0 must be different:
/Users/---insert username---/---insert path to mame folder---/mame/glsl/mame-psgs
And great performance as a lightweight shader!
(MacMini M1 and mame 246)

[TheCodeTherapy]

Thank you very much for the info @estefan3112 . I'll add this issue to the README so other users can benefit from the info you provided.