{
  inputs = { };

  outputs = { self }: {
    overlays.default = (self: pkgs: {
      iosevka-rastertail = pkgs.iosevka.override {
        privateBuildPlan = builtins.readFile ./private-build-plans.toml;
        set = "Rastertail";
      };
      
      rastertype3 = pkgs.stdenvNoCC.mkDerivation rec {
        pname = "rastertype3";
        version = "0.1.0";

        src = ./.;

        propagatedBuildInputs = [
          pkgs.typst
          pkgs.gyre-fonts self.iosevka-rastertail
        ];
        installPhase = ''
          mkdir -p $out/typst/packages/local/rastertype3/${version}/
          cp raster.typ $out/typst/packages/local/rastertype3/${version}/
          cp typst.toml $out/typst/packages/local/rastertype3/${version}/
        '';

        setupHooks = [ ./setup-hook.sh ];
      };
    });
  };
}