{
  description = "";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

  outputs = { self, nixpkgs }:
    let
      lib = nixpkgs.lib;
      systems = [
        "x86_64-linux"
        "i686-linux"
        "x86_64-darwin"
        "aarch64-linux"
        "armv6l-linux"
        "armv7l-linux"
      ];
      forAllSystems = lib.genAttrs systems;
    in
    {
      legacyPackages = forAllSystems (system: import ./default.nix {
        pkgs = import nixpkgs { inherit system; };
      });
      packages = forAllSystems (system: lib.filterAttrs (_: v: lib.isDerivation v) self.legacyPackages.${system});
    };
}