Add build-modules.yml for Nix module dry-run workflow

copy_pasta.zsh

@@ -1,28 +0,0 @@
-#!/usr/bin/env zsh
-
-export NIX_CONFIG="experimental-features = nix-command flakes"
-
-echo "=== nix --version ==="
-nix --version
-echo
-
-configs=(
-  "nixos-local-wireguard-server"
-  "nixos-blank"
-  "nixos-songsheet"
-  "nixos-database"
-  "nixos-forgejo"
-  "nixos-teamspeak"
-  "nixos-traefik"
-  "nixos-build-machine"
-)
-
-if [[ -n "$1" ]]; then
-  configs=("$1")
-fi
-
-for config in "${configs[@]}"; do
-  echo "=== Dry-run: $config ==="
-  nix build --dry-run ".#nixosConfigurations.${config}.config.system.build.toplevel" || true
-  echo
-done