perf: add express server for efficient loading

Author: apsinghdev

README.md

@@ -105,7 +105,7 @@ Music Blocks, using `cd path/to/musicblocks/`.
 4. After cloning the musicblocks repository, you can start a local server using npm
 
     ```bash
-    npm run serve
+    npm run dev
     ```
 
 6. You should see a message `Serving HTTP on 127.0.0.1 port 3000

index.js

@@ -0,0 +1,21 @@
+const express = require('express');
+const compression = require('compression');
+const path = require('path');
+
+const app = express();
+
+// Enable compression for all responses
+app.use(compression({
+  level: 9,
+  threshold: 0
+}));
+
+app.use(express.static(path.join(__dirname), {
+  maxAge: '1h'
+}));
+
+const PORT = 3000;
+app.listen(PORT, '127.0.0.1', () => {
+  console.log(`Music Blocks running at http://127.0.0.1:${PORT}/`);
+  console.log('Compression enabled');
+});