Bun cluster

server/package.json

@@ -8,7 +8,7 @@
   "main": "src/server.ts",
   "type": "module",
   "scripts": {
-    "start": "bun run src/server.ts",
+    "start": "bun run src/cluster.ts",
     "lint": "eslint ./src/**/*.ts --color --cache --cache-strategy content --cache-location .eslintcache",
     "typecheck": "tsc"
   },
@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@eslint/js": "9.5.0",
-    "@types/bun": "1.1.4",
+    "@types/bun": "1.1.5",
     "eslint": "9.5.0",
     "eslint-config-prettier": "9.1.0",
     "eslint-plugin-prettier": "5.1.3",

server/src/cluster.ts

@@ -0,0 +1,23 @@
+import { isDeployed } from '@app/config/env';
+import { spawn } from 'bun';
+
+const cpus = isDeployed ? navigator.hardwareConcurrency : 1; // Number of CPU cores
+const buns = new Array(cpus);
+
+for (let i = 0; i < cpus; i++) {
+  buns[i] = spawn({
+    cmd: ['bun', './src/server.ts'],
+    stdout: 'inherit',
+    stderr: 'inherit',
+    stdin: 'inherit',
+  });
+}
+
+function kill() {
+  for (const bun of buns) {
+    bun.kill();
+  }
+}
+
+process.on('SIGINT', kill);
+process.on('exit', kill);

server/src/server.ts

@@ -74,4 +74,6 @@ log.info({ msg: `Server initialized on port ${serverConfig.port}` });
 serve({
   port: serverConfig.port,
   fetch: app.fetch,
+  development: !isDeployed,
+  reusePort: isDeployed,
 });