Not the parent, but I use it for projects (including Python projects) to run tests, code generation etc. when I can’t use mise.

If not makefile then what do you use for a project that has Python for backend and JavaScript for frontend? Does everyone learns all the tools or do you just provide a 'make lint' that works in all codebases?

Do what I can do in npm scripts

As a task runner. What do you use?

Just.

It is a less heavyweight make. Similar syntax and behavior, no .PHONY, a couple of helper functions and behaviors. It is designed as a task runner rather than a build system.

I’m not GP but I use poetry. Can’t even imagine working with Python without it.

https://python-poetry.org/docs/cli/

I can’t imagine going back to poetry after using uv.

uv is like 10x faster than poetry for installs and dependency resolution.

Poetry is a package manager though, there's Poe the Poet[0] for a reason. How do you use poetry to run custom tasks?

[0]: https://poethepoet.natn.io/poetry_plugin.html

You might enjoy https://poethepoet.natn.io/ it makes tasks easier, and you don't even need poetry to benefit from it (I use it with UV these days)