diff --git a/README.md b/README.md
index 8f05d39..bc063b1 100644
--- a/README.md
+++ b/README.md
@@ -11,3 +11,17 @@ it is sufficient to run:
 
 This will produce an APK file which can then be loaded onto
 an Android device or emulator.
+
+Note that the application makes HTTP requests to a predefined
+API server URL, currently `dev.danilafe.com`. This is not suitable
+for testing if you do not have access to the domain. To
+reconfigure the application to use a different API
+URL, change the `apiUrl` entry in the application's `strings.xml` file:
+
+```XML
+<string name="apiUrl">http://your.domain </string>
+```
+
+The application will not be of much use if it is unable
+to reach the Fenceless Grazing API server. The server's
+repository can be found [here](https://dev.danilafe.com/CS-46X/server).