change from mono-home-manager to full flake multi-system configuration

scripts/nix-check.sh

@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Set required experimental features
+export NIX_CONFIG="experimental-features = nix-command flakes"
+
+FLAKE_PATH="."
+
+# List systems and type: nixos or home-manager
+# Format: [hostname]=type:user
+declare -A SYSTEMS=(
+  [t440p]="nixos:wieerwill"
+  [steamdeck]="nixos:wieerwill"
+  [xaorus]="home:wieerwill"
+  [vps04_08]="home:wieerwill"
+)
+
+echo "🔍 Checking Nix flake at: $FLAKE_PATH"
+echo
+
+# Check flake syntax and structure
+echo "🧪 Running: nix flake check"
+if nix flake check "$FLAKE_PATH" --show-trace; then
+  echo "✅ Flake syntax and outputs look good!"
+else
+  echo "❌ Flake check failed!"
+  exit 1
+fi
+
+echo
+
+# Check each system based on type
+for HOST in "${!SYSTEMS[@]}"; do
+  IFS=":" read -r TYPE USER <<< "${SYSTEMS[$HOST]}"
+  echo "🔎 Checking $TYPE system: $USER@$HOST"
+
+  if [[ "$TYPE" == "nixos" ]]; then
+    ATTR="nixosConfigurations.${HOST}.config.system.build.toplevel"
+  elif [[ "$TYPE" == "home" ]]; then
+    ATTR="homeConfigurations.${HOST}.activationPackage"
+  else
+    echo "❌ Unknown system type for $HOST. Skipping..."
+    continue
+  fi
+
+  if OUTPUT=$(nix eval "$FLAKE_PATH"#"$ATTR" 2>&1); then
+    echo "✅ $HOST: $TYPE configuration is valid."
+  else
+    echo "❌ $HOST: $TYPE configuration check failed!"
+    echo "🔍 Error output:"
+    echo "$OUTPUT"
+  fi
+
+  echo
+done