I recently had the idle_master_py-master folder in my downloads but wanted to clear it out and moved it to my documents folder. I changed the Terminal command to

cd ~/Documents/idle_master_py-master/Releases/OS\ X/; chmod +x start; chmod +x steam-idle; ./start

and the only difference beforehand was that Documents was Downloads. It worked a few times in my Docs folder but now it just won't rfind that I do ave games with drops. I tried updating my cookies in the settings file (btw right now as I type this I don't even see a sessionid cookie).

It would be nice to get a GUI like Windows but I get that's not possible without a Mac to develop on. I do think better instructions for Mac would be nice though. It took me a lot of searching on how to get it running on Mac.