I saw many projects like this a while ago, and, although they all seemed great, I kept wondering why do I need such a complex thing just to save/run a bunch of scripts?

I ended up building my own script runner, fj.sh [1]. It's dead simple, you write your scripts using regular shell functions that accept arguments, and add your script files to your repos. Run with "fj myfunc myarg ...". Installation is basically downloading an executable shell script (fj.sh) and adding it to your PATH. Uninstall by removing it. That's all.

I'm not saying 'just' is bad—it is an awesome, very powerful tool, but you don't always need that much power, so keep an eye on your use case, as always.

[1] github.com/gutomotta/fj.sh