diff --git a/.gitignore b/.gitignore
index 680c904..1935cf2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,8 @@
 
 # dependencies
 /node_modules
+.parcel-cache
+dist
 /.pnp
 .pnp.js
 
diff --git a/javascript/Javascript Expert/chapter17/npmUsage/package.json b/javascript/Javascript Expert/chapter17/npmUsage/package.json
index 9795cdf..b07fc11 100644
--- a/javascript/Javascript Expert/chapter17/npmUsage/package.json	
+++ b/javascript/Javascript Expert/chapter17/npmUsage/package.json	
@@ -2,15 +2,16 @@
   "name": "npmusage",
   "version": "1.0.0",
   "description": "",
-  "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "start": "parcel index.html",
+    "build": "parcel build index.html"
   },
   "author": "",
   "license": "ISC",
   "dependencies": {
     "leaflet": "^1.9.2",
-    "lodash-es": "^4.17.21"
+    "lodash-es": "^4.17.21",
+    "parcel": "^2.8.0"
   },
   "type": "module"
 }