Not totally sure what you mean, but you want to install it yourself just clone the repo, `npm install` to get all the dependencies. then, do one of:
1. run `npm link`, which will put pirateflix in your path
2. make src/cli.js executable and run it directly
3. don't make src/cli.js executable, and run it with `node src/cli.js`
For context, the fork linked above references being able to install it using 'npm install pirateflix -g', which does not function due to pirateflix apparently not being registered.