{
  description = "Description for the project";

  inputs = {
    nixpkgs.url = "github:cachix/devenv-nixpkgs/rolling";
    devenv.url = "github:cachix/devenv";
    nix2container.url = "github:nlewo/nix2container";
    nix2container.inputs.nixpkgs.follows = "nixpkgs";
    mk-shell-bin.url = "github:rrbutani/nix-mk-shell-bin";
  };

  nixConfig = {
    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
    extra-substituters = "https://devenv.cachix.org";
  };

  outputs = inputs@{ self, flake-parts, ... }:
    let
      version = "1.2.0";
      rev = if (self ? rev) then self.rev else self.dirtyRev;
    in
    flake-parts.lib.mkFlake { inherit inputs; } {
      imports = [
        inputs.devenv.flakeModule
      ];
      systems = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];

      perSystem = { config, self', inputs', pkgs, system, ... }: {
        # Per-system attributes can be defined here. The self' and inputs'
        # module parameters provide easy access to attributes of the same
        # system.

        # needed for devenv up
        packages.devenv-up = self'.devShells.default.config.procfileScript;

        packages.default = pkgs.callPackage ./nix/package.nix { inherit rev version; };

        devenv.shells.default = {
          name = "ytdl-web";

          imports = [
            ./nix/devenv.nix
          ];
        };

      };

      flake = {
        # The usual flake attributes can be defined here, including system-
        # agnostic ones like nixosModule and system-enumerating ones, although
        # those are more easily expressed in perSystem.

        nixosModules.default = import ./nix/module.nix;
      };
    };
}