nixos-config/overlays/unstable.nix

# NOTE: pkgs is unused but there for consistency with nur.nix
{
  lib, ...
}: final: prev:

let
  unstableTarball =
    fetchTarball
      https://github.com/NixOS/nixpkgs/archive/nixos-unstable.tar.gz;
in {
  unstable = import unstableTarball {
    # TODO
    config = {
      allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
        "firmwareLinuxNonfree" "microcodeAmd" "microcodeIntel"
        "steam" "steam-original" "steam-runtime"
        "discord"
      ];
    };
  };
}