diff --git a/README.md b/README.md
index 0804226..1fceed5 100644
--- a/README.md
+++ b/README.md
@@ -119,7 +119,7 @@ VITE_PROGRAM_ID=app01                     # Optional: Default application slot
 
 **Development Prerequisites:**
 
-- Node.js 18+
+- Node.js 20.19+, 22.13+, or 24+ (required by Vite, Vitest's jsdom environment, and ESLint)
 - npm
 - Network access to target PepperDash Essentials processor
 - Modern web browser
diff --git a/docs/tutorials/device-management-basics.md b/docs/tutorials/device-management-basics.md
index 1d4359c..57fdef4 100644
--- a/docs/tutorials/device-management-basics.md
+++ b/docs/tutorials/device-management-basics.md
@@ -159,7 +159,7 @@ Real systems have devices that work together:
 
 - Similar names with different suffixes (-01, -02, etc.)
 - Hierarchical naming (Room1-Display, Room1-Audio)
-- Functional grouping (Boardroom-_, Training-_)
+- Functional grouping (`Boardroom-*`, `Training-*`)
 
 ### Step 8: Configuration Insights
 
diff --git a/package-lock.json b/package-lock.json
index f7869d9..4eb3e9a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -49,6 +49,9 @@
         "vite": "^8.0.3",
         "vite-plugin-svgr": "^5.0.0",
         "vitest": "^4.1.2"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.13.0 || >=24"
       }
     },
     "node_modules/@adobe/css-tools": {
diff --git a/package.json b/package.json
index e1ac1f9..54f465a 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,9 @@
   "version": "1.0.0-local",
   "type": "module",
   "private": true,
+  "engines": {
+    "node": "^20.19.0 || ^22.13.0 || >=24"
+  },
   "dependencies": {
     "@monaco-editor/react": "^4.7.0",
     "@reduxjs/toolkit": "^2.11.2",