how to make lsp ruff use the virtual environment executable

[ag91]

Hey thanks a lot for maintaining this package and offering a discussion place on GitHub: you are very kind!

The last few days I had this funny experience where lsp would repeatedly fail to start ruff for Python linting.
Since I was at work I just fought for it a little and then guessed that the ruff versions used by my project virtual environment and the one installed globally were incompatible.
I bumped my project ruff version to the latest and fixed the issue.

The question though is: should I set something like

(add-hook 'python-mode-hook (lambda () (if-let ((r (file-exists-p (concat (projectile-project-root) ".venv/bin/ruff")))) (setq-local lsp-ruff-server-command '(r "server")))))

I was thinking it could be worth opening an issue or a PR: but I wonder if I am missing something?
I think I read somewhere that lsp-mode used pyvenv to pull dependencies from the virtual environment, so not sure why it should fail to find the ruff executable. Maybe just an issue with my setup?