Astral's tools (Ruff, uv) are awesome, I'm a big fan. I'm using them every time I can and recommending them everywhere. I use them for my open source projects (FastAPI, Typer, SQLModel, etc.) and also for private things, small and big, even small scripts, everything. Also, they have great docs, and I'm kinda picky with docs. I'm looking forward to whatever they build next, I'm pretty sure I'll like it. By now, it's not just by chance that they built one great thing, it's a trend, they build great stuff.