I’ve enjoyed uv so far. Definitely snappy. And I appreciate that they stuck with pyproject.toml for config. It pulled in some nice stuff from pipenv (sync and update are clear commands that do expected things).

Quick complaint: I wish the python ecosystem hadn’t landed on toml for package config. I’ve never liked toml config files; always found them confusing.

OS X is (at this point loosely) based on BSD. I think you can still get Darwin (the open source part of OS )X somewhere…