README: Mention about git submodule

au-ts · Jan 7, 2025 · e1bccd8 · e1bccd8
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@@ -67,6 +67,12 @@ nix-shell
 
 ### Building and running
 
+First, initialize the git submodule for the cloned repository
+
+```sh
+git submodule update --init
+```
+
 Finally, we can simulate a basic system with a single Linux guest with the
 following commands:
 ```sh