diff --git a/ayb/commands.md b/ayb/commands.md
index 4dc4f00..c7491e6 100644
--- a/ayb/commands.md
+++ b/ayb/commands.md
@@ -14,4 +14,6 @@ Basic commands for ayb development
     * Change `smtp_username` to `"username"`.
     * Change `smtp_password` to `"password"`.
     * Set `e2e_testing` to `true`
-* Only run SQLite tests: `cargo test client_server_integration_sqlite -- --exact`.
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+* Only run SQLite tests: `cargo test client_server_integration_sqlite -- --exact`.
+    * After E2E testing the `10026` port may still be in use. The simplest way to kill the process using the port is running `freeport 10026`.
+    * If freeport isn't installed, run `pip install freeport`.
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