{
  sources ? import ../sources.nix,
  pkgs ? import sources.nixpkgs {},
  ...
}: let
  iosevka-pin = import sources.pin-iosevka {};
  mkNerdFont = iosevka-pin.callPackage ../lib/mkNerdFont.nix {};
in rec {
  # fonts
  altiosevka = iosevka-pin.callPackage ./altiosevka {};
  altiosevka-nerd-font-mono = mkNerdFont {
    font = altiosevka;
    extraArgs = [
      "--name {/.}-NFM"
      "--use-single-width-glyphs"
    ];
  };
}