diff --git a/README.md b/README.md
index c9d9672..25384e5 100644
--- a/README.md
+++ b/README.md
@@ -169,6 +169,10 @@ In your hardware
 configuration you should basically only write you filesystem layout and your hostPlatform. The bootloading stuff
 is already taken care of by `../../roles`.
 
+The `flake-inputs` argument is optional, but you can use it if you need to get a hold of the flake inputs,
+else this is a complete normal nixos system configuration module (with a lot of settings already imorted
+from `../../roles`).
+
 As of moment of writing `network.nix` should contain ip, nameserver and default gateway setup. As parts of
 this is constant across all systems and will undergo refactor soon.