fix: package theme engine and system scripts and fix env-update scriptability

core/system/default.nix

@@ -5,6 +5,7 @@
     ./options.nix
     ./state.nix
     ./nix.nix
+    ./scripts.nix
     ./systemd.nix
     ./virtualization.nix
     ./fonts.nix

core/system/scripts.nix

@@ -0,0 +1,64 @@
+{ config, pkgs, lib, ... }:
+
+let
+  # System script dependencies
+  systemScriptDeps = with pkgs; [
+    coreutils
+    gnused
+    gnugrep
+    findutils
+    gawk
+    jq
+    nixos-rebuild
+    home-manager
+    git
+    sudo
+    brightnessctl
+    playerctl
+    pamixer
+    pciutils
+    usbutils
+    networkmanager
+    lshw
+    parted
+    btrfs-progs
+    cryptsetup
+    gum
+    curl
+    wget
+    libnotify
+    bc
+    supergfxctl
+    systemd
+  ];
+
+  nomarchy-system-scripts = pkgs.stdenv.mkDerivation {
+    pname = "nomarchy-system-scripts";
+    version = "1.0.0";
+    src = ./scripts;
+
+    nativeBuildInputs = [ pkgs.makeWrapper ];
+
+    installPhase = ''
+      mkdir -p $out/bin
+      cp * $out/bin/
+
+      chmod +x $out/bin/*
+      patchShebangs $out/bin
+    '';
+
+    postFixup = ''
+      deps="${lib.makeBinPath systemScriptDeps}"
+      for file in $out/bin/*; do
+        if [ -f "$file" ]; then
+          wrapProgram "$file" \
+            --prefix PATH : "$deps" \
+            --set NOMARCHY_PATH "/etc/nixos/nomarchy"
+        fi
+      done
+    '';
+  };
+in
+{
+  environment.systemPackages = [ nomarchy-system-scripts ];
+}