Adding Rust Nightly with pixi

[joshualeond]

Hi there, I'm using pixi to create a test environment for a python package that requires Rust nightly:

rustup default nightly

I know I can install rust with pixi add rust and then activate the shell (pixi s) and perform the step above but then the nightly version of rust isn't captured in the pixi toml. Is there a cleaner way to do this?

Thanks!