Add nixos-hardware flake for stinky.

hosts/stinky/default.nix

@@ -15,6 +15,14 @@
     ./hardware.nix
   ];
 
+  hardware = {
+    raspberry-pi."4".apply-overlays-dtmerge.enable = true;
+    deviceTree = {
+      enable = true;
+      filter = "*rpi-4-*.dtb";
+    };
+  };
+
   networking.hostName = "stinky";
 
   # Configure impermanence for tmpfs root (filesystem config in hardware.nix)
@@ -39,6 +47,7 @@
   environment.systemPackages = with pkgs; [
     libcamera
     libraspberrypi
+    raspberrypi-eeprom
   ];
 
   # Firewall: Allow access to OctoPrint