Yep. You can gradually start to use feature set of uv. Beside it uses standards of python project management, so you don’t have vendor lock-in here.

If they are using standard compliant tools like pyenv, venv and pip then uv will play nicely with that. In fact I'm working on a project like that right now. The 'official' guidelines says to use pip and venv, but I'm using uv and no one else notices.

If on the other hand they're using a more optionated tool like poetry then it won't work as well, but that has more to do with poetry doing its own thing and not playing nice with other tools.