fix: resolve evaluation purity, missing packages, and brittle paths

core/system/scripts-derivation.nix

@@ -0,0 +1,60 @@
+{ pkgs, lib, ... }:
+
+let
+  # System script dependencies
+  systemScriptDeps = with pkgs; [
+    coreutils
+    gnused
+    gnugrep
+    findutils
+    gawk
+    jq
+    nixos-rebuild
+    pkgs.home-manager
+    git
+    sudo
+    brightnessctl
+    playerctl
+    pamixer
+    pciutils
+    usbutils
+    networkmanager
+    lshw
+    parted
+    btrfs-progs
+    cryptsetup
+    gum
+    curl
+    wget
+    libnotify
+    bc
+    supergfxctl
+    systemd
+  ];
+in
+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
+  '';
+}