Implement raspberry pi check using nixos-facter

machines/default.nix

@@ -25,11 +25,6 @@ flake-utils.lib.eachDefaultSystem (system: let
         '';
       };
 
-      isRaspberryPi = lib.mkOption {
-        default = false;
-        type = lib.types.bool;
-      };
-
       nixosModule = lib.mkOption {
         default = {...}: {};
         type = lib.types.anything;

machines/warwick/default.nix

@@ -1,16 +1,21 @@
 {
   machines.warwick = {
     arch = "aarch64-linux";
-    isRaspberryPi = true;
     facterReportPath = ./facter.json;
 
-    nixosModule.lab = {
-      storage.profile = "pi";
-      monitoring.server.enable = true;
+    nixosModule = {inputs, ...}: {
+      imports = [inputs.nixos-hardware.nixosModules.raspberry-pi-4];
 
-      tailscale = {
-        advertiseExitNode = true;
-        enable = true;
+      config = {
+        lab = {
+          storage.profile = "pi";
+          monitoring.server.enable = true;
+
+          tailscale = {
+            advertiseExitNode = true;
+            enable = true;
+          };
+        };
       };
     };
   };