big juicy update

README.md

@@ -22,6 +22,22 @@ Go + Postgres marketplace where authenticated users can upload LLM skill files,
    ```
 5. Open `http://localhost:8080`.
 
+## Listener configuration
+- `LISTEN_NETWORK`: `tcp` (default) or `unix`
+- `LISTEN_ADDRESS`:
+  - for `tcp`: address like `:8080` or `127.0.0.1:8080`
+  - for `unix`: socket path like `/tmp/skills2.sock`
+- `UNIX_SOCKET_PERM`: octal file mode for unix socket path (default `0660`)
+
+Examples:
+- TCP (default):
+  - `LISTEN_NETWORK=tcp`
+  - `LISTEN_ADDRESS=:8080`
+- Unix socket:
+  - `LISTEN_NETWORK=unix`
+  - `LISTEN_ADDRESS=/tmp/skills2.sock`
+  - `UNIX_SOCKET_PERM=0660`
+
 ## Local dev mode (no auth setup)
 Set `DEV_MODE=true` in `.env`.
 In this mode, protected routes always authenticate as: