From 229db44b8fa66f77fc17ebaf3a7f8b347c635f3c Mon Sep 17 00:00:00 2001
From: Garry Tan <garrytan@gmail.com>
Date: Fri, 27 Mar 2026 09:46:44 -0600
Subject: [PATCH] fix: use 127.0.0.1 instead of localhost for serve URL

Avoids DNS resolution issues on some systems where localhost may resolve
to IPv6 ::1 while Bun listens on IPv4 only.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 design/src/serve.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/design/src/serve.ts b/design/src/serve.ts
index 5dc68ab4..14075d4f 100644
--- a/design/src/serve.ts
+++ b/design/src/serve.ts
@@ -87,7 +87,7 @@ export async function serve(options: ServeOptions): Promise<void> {
   });
 
   const actualPort = server.port;
-  const boardUrl = `http://localhost:${actualPort}`;
+  const boardUrl = `http://127.0.0.1:${actualPort}`;
 
   console.error(`SERVE_STARTED: port=${actualPort} html=${html}`);