{ pkgs, ... }:
{
  # https://mynixos.com/home-manager/option/programs.ghostty
  programs.ghostty = {
    enable = true;
    enableFishIntegration = true;
    settings = {
      theme = "Adventure";

      # font
      font-family = "JetBrainsMono Nerd Font";
      font-size = 12;

      # window
      window-decoration = false;
      window-padding-x = 10;
      window-padding-y = 10;
      window-width = 80;
      window-height = 40;

      # semi-transparent
      background-opacity = 0.90;

      # cursor
      cursor-style = "underline";

      # keep one daemon alive so subsequent launches (e.g. niri Mod+T) are
      # instant instead of paying GTK + wgpu init each time. relies on the
      # dbus-activated systemd user service that the HM module wires up.
      gtk-single-instance = true;
    };
  };

  home.sessionVariables = {
    TERMINAL = "ghostty";
  };
}