HOST Variable

README.md

@@ -40,6 +40,7 @@ Enterprise-style Scrum Poker application using Go, Gin, and SSE for real-time ro
 
 ## Environment Variables
 
+- `HOST`: server host/interface to bind (default all interfaces, equivalent to `0.0.0.0`)
 - `PORT`: server port (default `8002`)
 - `DATA_PATH`: directory for room JSON files (default `./data`)
 
@@ -52,6 +53,13 @@ go run ./src
 
 Open `http://localhost:8002`.
 
+To bind explicitly:
+
+```bash
+HOST=localhost PORT=8002 go run ./src
+HOST=0.0.0.0 PORT=8002 go run ./src
+```
+
 ## Docker
 
 Build: