diff --git a/USAGE.md b/USAGE.md
index af7201a..12a2875 100644
--- a/USAGE.md
+++ b/USAGE.md
@@ -26,9 +26,11 @@ $ ./run.sh
 Kawari is useless if it's not behind a domain or other address accessible to a launcher. Even something like Caddy is good enough, and we provide an example setup in the root of the repository.
 
 ```shell
-# caddy run
+$ caddy run
 ```
 
+This Caddyfile hosts several domains, most notably `ffxiv.localhost`, on port 80. If you get a "permission denied" error starting Caddy, you must either start Caddy with elevated privileges or set the `CAP_NET_BIND_SERVICE` capability. See [here](https://caddyserver.com/docs/quick-starts/caddyfile) for more information on how to do this.
+
 ## Logging in
 
 [Astra](https://github.com/redstrate/Astra) is the only launcher known to work, and it requires compiling the unreleased master branch. **If you don't know what any of that means, then wait for a new release of Astra before trying Kawari.**