feat(): add warning

Author: tomalaforge

README.md

@@ -6,6 +6,11 @@
 
 <br>
 
+> [!WARNING]
+> This project now uses **pnpm** as its package manager. Please make sure you have pnpm installed before running any commands. You can install it globally with `npm install -g pnpm` or follow the [official installation guide](https://pnpm.io/installation).
+
+<br>
+
 ## Intro
 
 This project has been created with three purposes:

package.json

@@ -11,6 +11,9 @@
     "doc:dev": "cd docs && pnpm exec pnpm run dev",
     "preinstall": "npx only-allow pnpm"
   },
+  "engines": {
+    "node": ">=20.19.6"
+  },
   "private": true,
   "packageManager": "pnpm@10.23.0",
   "dependencies": {