diff --git a/External-Configuration-Modules.md b/External-Configuration-Modules.md
deleted file mode 100644
index 18133d3..0000000
--- a/External-Configuration-Modules.md
+++ /dev/null
@@ -1,33 +0,0 @@
-# External Configuration Modules
-
-External modules allow system and user configuration to live in
-separate Git repositories.
-
-## System Modules
-
-Used in `inventory.nix` to define complete host configurations.
-
-```nix
-devices."server" = builtins.fetchGit {
-  url = "https://git.example.edu/org/server-config";
-  rev = "abc123";
-};
-```
-
-## User Modules
-
-Defined in `users.nix` and typically include both account options and
-home-manager configuration.
-
-Each external user module may contain:
-- `user.nix` (required)
-- `nixos.nix` (optional)
-
-## Evaluation Order
-
-1. User NixOS modules
-2. Host type modules
-3. Inventory overrides
-4. External system modules
-
-Later modules override earlier ones.