diff --git a/hosts/pi4/configuration.nix b/hosts/pi4/configuration.nix
index 4e9da0d..1c57ce0 100755
--- a/hosts/pi4/configuration.nix
+++ b/hosts/pi4/configuration.nix
@@ -22,9 +22,11 @@ in
   nix = {
     settings = {
       substituters = [
+        "https://nixos-raspberrypi.cachix.org"
         "https://cache.mjallen.dev"
       ];
       trusted-public-keys = [
+        "nixos-raspberrypi.cachix.org-1:4iMO9LXa8BqhU+Rpg6LQKiGa2lsNh/j2oiYLNOQ5sPI="
         "cache.mjallen.dev-1:IzFmKCd8/gggI6lcCXsW65qQwiCLGFFN9t9s2iw7Lvc="
       ];
     };
diff --git a/hosts/pi5/boot.nix b/hosts/pi5/boot.nix
index 5b6707e..bb38b79 100755
--- a/hosts/pi5/boot.nix
+++ b/hosts/pi5/boot.nix
@@ -1,6 +1,6 @@
 { pkgs, lib, ... }:
 let
-  kernelBundle = pkgs.linuxAndFirmware.v6_6_31;
+  kernelBundle = pkgs.linuxAndFirmware.latest;
 in
 {
   boot = {
diff --git a/hosts/pi5/services.nix b/hosts/pi5/services.nix
index 060caba..7cf3da4 100644
--- a/hosts/pi5/services.nix
+++ b/hosts/pi5/services.nix
@@ -3,7 +3,7 @@
   services = {
     xserver.desktopManager.gnome.enable = true;
     shairport-sync = {
-      enable = true;
+      enable = false;
       openFirewall = true;
       settings = {
         general = {