diff --git a/deno/deno.json b/deno/deno.json
index 5b320c2..8c2a561 100644
--- a/deno/deno.json
+++ b/deno/deno.json
@@ -1,6 +1,7 @@
 {
   "tasks": {
-    "dev": "deno run --watch main.ts"
+    "dev": "deno run --watch main.ts",
+    "build": "deno run build.ts"
   },
   "imports": {
     "@std/assert": "jsr:@std/assert@1"
diff --git a/deno/main.ts b/deno/main.ts
index 292ce5f..10cf97a 100644
--- a/deno/main.ts
+++ b/deno/main.ts
@@ -6,3 +6,5 @@ export function add(a: number, b: number): number {
 if (import.meta.main) {
   console.log("Add 2 + 3 =", add(2, 3));
 }
+
+Deno.serve(() => new Response("Hello, world!"));