Neat project! I use a tool called taskfile.dev for managing tasks like this in projects but I've always thought it would be nice to have a more global tool like this.

Right now what I do is write functions and add them to my profile but this leads to adding helper code to do stuff like handle errors, handle vars, printing out index of commends with documentation, etc. This makes my profile just messy so I think a tool like this could come in handy.