nixos_config/devenv.nix

{ pkgs, lib, config, inputs, ... }:

{

  packages = [ 
    pkgs.git
  ];

  scripts.hello.exec = ''
    echo hello from $GREET
  '';

  enterShell = ''
    hello
    git --version
  '';

  enterTest = ''
    echo "Running tests"
    nix flake check --all-systems
  '';
}