diff main.go server.go
--- main.go
+++ server.go
@@ -1,11 +1,22 @@
 package main
 
-import "fmt"
-
+import (
+	"fmt"
+	"net/http"
+	"os"
+)
+
+// sayHello greets whoever is passed in as an argument.
 func sayHello(to string) string {
 	return "hello " + to + "!"
 }
 
 func main() {
+	if os.Getenv("DEBUG") == "1" {
 	fmt.Println(sayHello("world"))
+	}
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(sayHello("internet")))
+	})
+	panic(http.ListenAndServe(":8080", nil))
 }