{
  inputs,
  system ? builtins.currentSystem,
  ...
} @ args: let
  pkgs = import inputs.nixpkgs {
    inherit system;
    overlays =
      [
        (import ./nur {inherit inputs;})
        (import ./local)
        (import ./lib)
        (final: prev: {
          jemalloc =
            if final.hostPlatform != "aarch64-darwin"
            then prev.jemalloc
            else null;
        })
      ]
      ++ (map (path: import "${path}/overlay.nix") [
        inputs.arcexprs
      ]);
    config = {
      allowUnfree = true;
      allowBroken = true;
      allowUnsupportedSystem = false;
      permittedInsecurePackages = [
        "ffmpeg-3.4.8"
        "ffmpeg-2.8.17"
      ];
    };
  };
in
  pkgs