UV. Using it as the exec target for python (UV script) is great. Dependencies declared at the top, now I have executable files in something better than bash.

I no longer shy away from writing <500 LOC utility/glue scripts in python thanks to uv.

I can't recommend uv enough. It's so fast, and uvx is so useful to run a random Python CLI tool. If you want to do things like you're accustomed to with pip you just `uv pip ...`