itch.io

yes i think, use version 1.0 and install python3
later in console (sorry i dont know the name in mac) write:

pip install PyQt5

If you what to use version 1.0.1, do the same and you need to change the code in FSM_logic.py

import graphviz_standalone as gv

to

import graphviz as gv

then install graphviz with pip

pip install graphviz

and maybe  download this https://graphviz.gitlab.io/download/

for run go to the path where is the file FSM_logic.py or FSM_logic.pyw all in console and write 

python FSM_logic.py

or

python FSM_logic.pyw

i dont know if macos admit double click in FSM_logic.pyw