This won't actually be useful to anyone else, but I stuck it on GitHub anyway.
Install its dependencies from the
$ pip install -r requirements.txt
Then you can install it as any other Python program:
$ python setup.py install
If you don't want to install its dependencies system-wide, try installing it in a virtual environment.
configure commands to get some keys, then copy them from the
~/.mlkshk config files into a
~/.gameshake config file instead. Note the argument names in
gameshake start with
--mlkshk- as appropriate.
gameshake --help for supported commands.