1) I'm an idiot. It's "pip install -r requirements.txt". Don't know how I messed that one up.
2) Permission denied where? I'm not sure what scenario on GitHub could possibly lead to that.
I did try and install it myself and it turned out to be significantly more annoying than expected (on Linux, mind you, so it might be easier on Win). I didn't actually get it to run because after an hour, I had other things to do.
I get two errors;
1) no such option: -r
2) Permission denied when using Git HUB
Yes i'm a noob.