Fun fact, we've been using pixi to compile everything Python related internally. In fact PeppyOS was even started with pixi as a base layer (but we pivoted away from it since the project is in Rust and Cargo is the de-facto toolchain). We support uv by default for Python (since it's what's the most used these days) but pixi is already supported, see the note on this page: https://docs.peppy.bot/guides/first_node/