{
  description = "";
  inputs = { 
    nixpkgs.url = "nixpkgs/nixos-23.05";
  };

  outputs = { self, nixpkgs }:
    let
      version = "0.0.1";
      name = "develnixos";

      supportedSystems = [ "x86_64-linux" "aarch64-linux" ];
      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
      
      devTaskScripts = forAllSystems (system: {
        autoTag = nixpkgsFor.${system}.writeScript "auto_tag.sh" ''
          git tag --force v${version}
          git push origin v${version}
        '';
      });

      space = forAllSystems (system: rec {
        config = import ./config { nixpkgs = nixpkgsFor.${system}; };
        playground = import ./playground/example { config = config; };
      });

    in rec {
      packages = forAllSystems (system: {
          default = space.${system}.playground.package;
        });
      apps = forAllSystems (system:
        let
          testConfig = import ./config { nixpkgs = nixpkgsFor.${system}; };
          testapp = import ./playground/example { config = testConfig; };

          updateLockScript =
            nixpkgsFor.${system}.writeShellScriptBin "update_flake_lock.sh" ''
              nix --experimental-features 'nix-command flakes' flake lock --update-input nixpkgs
              nix --experimental-features 'nix-command flakes' build 
            '';
        in {
          default = space.${system}.playground.app;
          devTasks = {
            updateFlakeLock = {
              type = "app";
              program = "${updateLockScript}/bin/update_flake_lock.sh";
            };
            autoTag = {
              type = "app";
              program = "${devTaskScripts.${system}.autoTag}";
            };
          };
        });

      devShells = forAllSystems (system: {
        default = nixpkgsFor.${system}.mkShell {
          name = "dev-shell";
          packages = [ nixpkgsFor.${system}.nixfmt ];
          shellHook = ''
            . ./alias.sh
          '';
        };
      });

    };
}