Fall back to nixpkgs from the flake registry if <nixpkgs> is unavailable

[figsoda]

No description provided.

[pbsds]

A neat trick if you use direnv to enter the devShell:

If the flake outputs its inputs:

  outputs = { self, nixpkgs, ... } @ inputs : {
   inherit inputs;
   ...
  }

Then you can add this file:

.envrc

use flake
export NIX_PATH="nixpkgs=$(nix eval '.#inputs.nixpkgs.outPath' --raw)"