I get your point, but once in a while, you get a gem like uv for python.

The fact uv is not in python means it's immune to the many bootstrapping problems the language suffers, which in itself is a huge win.

Granted, it works only because it's well engineered. The python integration is fluid, it respects standards, you never actually feels you are dealing with a separate tech.

This is rare.

Usually the experience is more something like asdf which gets 70% there then left you hanging.

However, when that works, it brings many benefits. An unconspiscious one for uv is that we now have a packaging tool compatible with pip that you can call from any other language with no need for a python runtime, and no risk of breaking if other runtimes exist and move.