{
  config,
  lib,
  pkgs,
  ...
}:
# Keyboard-driven screenshots copy to the clipboard before Satty opens for
# annotation. Satty copies annotated screenshots when it saves them.
let
  screenshotKey = keys: target: {
    inherit keys;
    action = {
      kind = "exec";
      command = "${capture target}";
    };
  };

  # Copy the original screenshot before Satty opens.
  # Satty copies and saves annotated screenshots when the user presses Enter.
  capture =
    target:
    pkgs.writeShellScript "screenshot-${target}" ''
      dir="$(${lib.getExe' pkgs.xdg-user-dirs "xdg-user-dir"} PICTURES)/Screenshots"
      ${lib.getExe' pkgs.coreutils "mkdir"} -p "$dir"
      ${lib.getExe pkgs.grimblast} save ${target} - \
        | ${lib.getExe' pkgs.coreutils "tee"} >(${lib.getExe' pkgs.wl-clipboard "wl-copy"}) \
        | ${lib.getExe pkgs.satty} --filename - \
          --output-filename "$dir/screenshot-%Y%m%d-%H%M%S.png" \
          --copy-command ${lib.getExe' pkgs.wl-clipboard "wl-copy"} \
          --save-after-copy \
          --early-exit \
          --actions-on-enter save-to-clipboard
    '';
in
{
  options.modules.desktop.utilities.screenshot.enable =
    lib.mkEnableOption "screenshots via grimblast and satty";

  config = lib.mkIf config.modules.desktop.utilities.screenshot.enable {
    home-manager.users.${config.user.name} = {
      # satty is a one-shot annotation surface, so float it rather than letting
      # it claim a tile in the layout.
      wayland.windowManager.hyprland.settings.window_rule = [
        {
          match.class = "^(com\\.gabm\\.satty)$";
          float = true;
        }
      ];
    };

    registry.keybind.${config.networking.hostName} = {
      screenshot-area = screenshotKey "Print" "area";
      screenshot-active = screenshotKey "SHIFT + Print" "active";
      screenshot-screen = screenshotKey "CTRL + Print" "screen";
    };
  };
}