Comment by chippiewill

I agree, it sounds like they're trying to expand their moat because they realised they were too late to the better type-checking party.

It's somewhat ironic that they're only just getting around to it actually. The predecessor to `uv`, `rye`, had integration for `ruff` fairly early on - but Astral have really dragged their heels on putting it into `uv` (presumably because `ruff` had already won) and even now aren't adding support until after `ty` is integrated.