I had a lot of trouble convincing people that a correct Python package manager was even possible. uv proved it was possible and won people over with speed.

I had a sketched out design for a correct package manager in 2018 but when I talked to people about it I couldn't get any interest in it. I think the brilliant idea that uv had that I missed was that it can't be written in Python because if is written in Python developers are going to corrupt its environment sooner or later and you lose your correctness.

I think that now that people are used to uv it won't be that hard to develop a competitor and get people to switch.