Automate nixpkgs-unstable bumps

[domenkozar]

Depends on cachix/devenv#1088

• get latest nixpkgs-unstable channel
• apply our patches
• run all tests
• bump rolling

[vetsin]

This seems nice, as this branch is months behind

[azerbe]

+1 here. A bit too far behind for my taste.

[domenkozar]

The reason why it's behind is because there's a Python fix that we need that has been reverted on nixpkgs master.

We're looking into how to fix it and as soon as it hits nixpkgs the rolling branch can go on.

See https://discourse.nixos.org/t/how-to-build-python-virtualenv-with-packages-provided-by-python3-withpackages/24766/20 for recent discussion.

[domenkozar]

WIP at NixOS/nixpkgs#326094, I'm happy to sponsor this work if someone wants to pick it up.

[vlaci]

Isn't a viable alternative workaround for devenv to "lift" the python wrapping code from the related PR?

Then at least, it can continue to function the same way as before. I know the current version is suboptimal, but it shouldn't be worse than what is already in devenv's default nixpkgs.

E.g: cachix/devenv@main...vlaci:devenv:python-wrapper

[domenkozar]

Thanks @vlaci, I've been too focused on upstreaming that PR.

Let's try this at cachix/devenv#1489