{ modules, ... }:
{
  modules.hyprlock = {
    homeManager =
      _:
      let
        # Palette extracted from the hyprpaper wallpaper so the input field
        # matches the background. Regenerate and update when Wallpaper.jpg
        # changes:
        #   nix run nixpkgs#matugen -- image ~/Wallpaper.jpg -m dark \
        #     --source-color-index 0 --dry-run --show-colors
        #
        # name (matugen token)      hex      rgb()
        primary = "rgb(135, 209, 235)"; # #87D1EB  accent / success
        tertiary = "rgb(194, 195, 235)"; # #C2C3EB  capslock
        error = "rgb(255, 180, 171)"; # #FFB4AB  failure
        outline = "rgb(137, 146, 150)"; # #899296  neutral border
        on_surface = "rgb(222, 227, 230)"; # #DEE3E6  text/dots
        inner_color = "rgba(27, 32, 35, 0.6)"; # #1B2023 @ 60%
      in
      {
        programs.hyprlock = {
          enable = true;
          settings = {
            # Reuse the hyprpaper wallpaper (see doloro-settings hyprpaper
            # config) as the lock screen background. monitor = "" covers every
            # output.
            background = [
              {
                monitor = "";
                path = "/home/doloro/Wallpaper.jpg";
              }
            ];
            # hyprlock has no input-field by default, so one must be declared
            # explicitly or there is no password prompt to unlock with.
            input-field = [
              {
                monitor = "DP-2";
                size = "200, 50";
                position = "0, -80";
                rounding = 4;
                dots_center = true;
                dots_size = 0.33;
                hide_input = false;
                fade_on_empty = false;
                font_family = "CaskaydiaCove Nerd Font Mono";
                placeholder_text = ''<span foreground="##899296">Password...</span>'';
                fail_text = ''<i>$FAIL <b>($ATTEMPTS)</b></i>'';
                inherit inner_color;
                outer_color = outline;
                check_color = primary;
                fail_color = error;
                capslock_color = tertiary;
                font_color = on_surface;
              }
            ];
          };
        };
      };
    nixos.security.pam.services.hyprlock = { };
  };
}