Having gone through writing a couple of iterations of these, I went back to settling on `PATH="./scripts/:$PATH"`, which in my project root dirs (where I spend 99% of my time anyway on the shell) just works.<p>Sure, this could be augmented with per-folder environments, fancy runner syntax, but less is more for me in this regard.<p>Ninja update: Anyway, I like what OP is doing here, seems like a lot of things are done right in this. :)