flake.nix

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
  };

  outputs =
    { self, nixpkgs }:
    let
      forAllSystems =
        function:
        nixpkgs.lib.genAttrs [
          "x86_64-linux"
          "aarch64-linux"
          # experimental
          "x86_64-darwin"
          "aarch64-darwin"
        ] (system: function nixpkgs.legacyPackages.${system});

      rev = self.shortRev or self.dirtyShortRev or "dirty";
    in
    {
      overlays.default = final: prev: { nh = final.callPackage ./package.nix { inherit rev; }; };

      packages = forAllSystems (pkgs: rec {
        nh = pkgs.callPackage ./package.nix { inherit rev; };
        default = nh;
      });

      devShells = forAllSystems (pkgs: {
        default = import ./shell.nix { inherit pkgs; };
      });

      formatter = forAllSystems (pkgs: pkgs.nixfmt-rfc-style);
    };
}