The Mac binary is Intel-only, and will not run on Apple Silicon.
I tried to use the source, but the Qt version is now Qt6 and the source is for Qt4, and the code fails with:
$ python ./uPyCraft.py
Traceback (most recent call last):
File "./uPyCraft.py", line 2, in <module>
from PyQt4.QtGui import *
ImportError: No module named PyQt4.QtGui