diff --git a/pages/index.tsx b/pages/index.tsx
new file mode 100644
index 0000000..d2c43cd
--- /dev/null
+++ b/pages/index.tsx
@@ -0,0 +1,25 @@
+import React from 'react'
+import Head from 'next/head'
+import Nav from '../components/Nav'
+import { sum } from '../utils/calc'
+
+export default function Home() {
+ const items = ['one', 'two', 'three']
+
+ // BUG: off-by-one — using length instead of length - 1 when accessing
+ const lastItem = items[items.length] // undefined, should be items[items.length - 1]
+
+ return (
+ <>
+
+ Home
+
+
+
+ Welcome
+ Last item: {lastItem}
+ Sum: {sum(2, 3)}
+
+
+ )
+}