{
  pkgs,
  lib,
  config,
  ...
}:

let
  # Deterministic Silicon Volt wallpaper: rendered from SVG at build time,
  # so the same source always produces a byte-identical image.
  wallpaper = pkgs.runCommand "silicon-volt-wallpaper.png" { } ''
    ${pkgs.librsvg}/bin/rsvg-convert -w 3840 -h 2160 ${./wallpaper.svg} > $out
  '';
in
{
  imports = [
    ./hyprland.nix
    ./hyprlock.nix
    ./hypridle.nix
    ./quickshell.nix
    ./services.nix
  ];

  home.packages = with pkgs; [
    # Utilities & Tools
    grim
    slurp
    wl-clipboard
    brightnessctl
    jq

    # Desktop Environment / Hyprland ecosystem
    hyprpaper
  ];

  # Build-time rendered wallpaper
  xdg.dataFile."backgrounds/silicon-volt.png".source = wallpaper;

  # hyprpaper: load the Silicon Volt wallpaper on every output. The
  # home-manager module writes hypr/hyprpaper.conf and runs the daemon as a
  # systemd user service tied to the Wayland session.
  services.hyprpaper = {
    enable = true;
    settings = {
      splash = false;
      preload = "${config.home.homeDirectory}/.local/share/backgrounds/silicon-volt.png";
      wallpaper = [
        {
          monitor = "";
          path = "${config.home.homeDirectory}/.local/share/backgrounds/silicon-volt.png";
        }
      ];
    };
  };

  # Notifications: flat brutalist-glass cards with volt accents
  services.mako = {
    enable = true;

    settings = {
      background-color = "#1c1b1bee";
      text-color = "#e5e2e1";
      border-color = "#cffc00";
      border-size = 1;
      border-radius = 0;
      width = 420;
      margin = "12";
      padding = "14";
      default-timeout = 6000;
      font = "JetBrainsMono Nerd Font 11";
      format = "<b>%s</b>\\n%b";
      "icon-location" = "left";
      max-icon-size = 48;

      "urgency=critical" = {
        border-color = "#ff7a59";
        text-color = "#ffffff";
        default-timeout = 0;
      };
      "urgency=low" = {
        border-color = "#2a2929";
        text-color = "#adaaaa";
      };
    };
  };
}