2 files changed, 16 insertions, 0 deletions
diff --git a/modules/system/btop/assertions.nix b/modules/system/btop/assertions.nix
new file mode 100644
index 0000000..82cddc3
--- /dev/null
+++ b/modules/system/btop/assertions.nix
@@ -0,0 +1,14 @@
+# Validates btop sub-options require the main module to be enabled
+{ config, ... }:
+{
+  assertions = [
+    {
+      assertion = !config.system.btop.nvidia.enable || config.system.btop.enable;
+      message = "system.btop.nvidia.enable requires system.btop.enable.";
+    }
+    {
+      assertion = !config.system.btop.amd.enable || config.system.btop.enable;
+      message = "system.btop.amd.enable requires system.btop.enable.";
+    }
+  ];
+}
diff --git a/modules/system/btop/default.nix b/modules/system/btop/default.nix
index 40f878f..4f84036 100644
--- a/modules/system/btop/default.nix
+++ b/modules/system/btop/default.nix
@@ -6,6 +6,8 @@
   ...
 }:
 {
+  imports = [ ./assertions.nix ];
+
   options.system.btop = {
     enable = lib.mkEnableOption "Enables btop.";
     nvidia.enable = lib.mkEnableOption "Build btop with NVIDIA GPU monitoring support (CUDA).";