diff --git a/lib/www/server/package.json b/lib/www/server/package.json
index c44c2b0..f6f4c13 100644
--- a/lib/www/server/package.json
+++ b/lib/www/server/package.json
@@ -9,6 +9,13 @@
   },
   "author": "Aaltronav s.r.o.",
   "license": "UNLICENSED",
+  "private": true,
+  "engines": {
+    "node": ">=14.0.0"
+  },
+  "os": [
+    "linux"
+  ],
   "dependencies": {
     "cookie-parser": "^1.4.5",
     "express": "^4.17.1",