How to disable ruff for linting ?

[jgirardet]

Hello,
On fresh install (neovim 11.4, astro 5.3.11, python-ruff pack) I have double linting

I looked at the forums, the issues, the discord, I only find old answers for previous versions.
Lookin at python-ruff source, I understand it should work out of the box

I looked here and tried without effect : astral-sh/ruff#12795 (comment)
And strangely autocomplete, proposes ruff-lsp but not ruff

I don't know what else to do. Hope someone has any advice ?
Thank you

edit: it appears I have exactly the same problem with pack rust: two diagnostics: clippy and rustanalyzer