diff --git a/hosts/pi/hardware-configuration.nix b/hosts/pi/hardware-configuration.nix
index 4fef963..3c28ab7 100644
--- a/hosts/pi/hardware-configuration.nix
+++ b/hosts/pi/hardware-configuration.nix
@@ -1,4 +1,4 @@
-{ config, lib, pkgs, modulesPath, ... }:
+{ lib, pkgs, modulesPath, ... }:
 
 {
   imports = [
@@ -6,6 +6,40 @@
   ];
 
   boot = {
+    kernelPackages = let
+      version = "6.1.73";
+      tag = "stable_20240124";
+      srcHash = "sha256-P4ExzxWqZj+9FZr9U2tmh7rfs/3+iHEv0m74PCoXVuM=";
+      in pkgs.linuxPackagesFor (pkgs.linux_rpi4.override {
+        argsOverride = {
+          src = pkgs.fetchFromGitHub {
+            owner = "raspberrypi";
+            repo = "linux";
+            rev = tag;
+            hash = srcHash;
+          };
+          version = version;
+          modDirVersion = version;
+          structuredExtraConfig = {};
+          kernelPatches = [
+            {
+              name = "drm-rp1-depends-on-instead-of-select-MFD_RP1.patch";
+              patch = pkgs.fetchpatch {
+                url = "https://github.com/peat-psuwit/rpi-linux/commit/6de0bb51929cd3ad4fa27b2a421a2af12e6468f5.patch";
+                hash = "sha256-9pHcbgWTiztu48SBaLPVroUnxnXMKeCGt5vEo9V8WGw=";
+              };
+            }
+            {
+              name = "iommu-bcm2712-don-t-allow-building-as-module.patch";
+              patch = pkgs.fetchpatch {
+                url = "https://github.com/peat-psuwit/rpi-linux/commit/693a5e69bddbcbe1d1b796ebc7581c3597685b1b.patch";
+                hash = "sha256-8BYYQDM5By8cTk48ASYKJhGVQnZBIK4PXtV70UtfS+A=";
+              };
+            }
+          ];
+        };
+      });
+
     # Stop ZFS kernel being built
     supportedFilesystems = lib.mkForce [ "btrfs" "cifs" "f2fs" "jfs" "ntfs" "reiserfs" "vfat" "xfs" ];
     tmp.cleanOnBoot = true;
@@ -14,9 +48,24 @@
   # Fix missing modules
   # https://github.com/NixOS/nixpkgs/issues/154163
   nixpkgs.overlays = [
-    (final: super: {
+    (final: prev: {
       makeModulesClosure = x:
-        super.makeModulesClosure (x // { allowMissing = true; });
+        prev.makeModulesClosure (x // { allowMissing = true; });
+    })
+    (final: prev: {
+      raspberrypifw = let
+        version = "1.20240529";
+        srcHash = "sha256-KsCo7ZG6vKstxRyFljZtbQvnDSqiAPdUza32xTY/tlA=";
+        in pkgs.raspberrypifw.override {
+          argsOverride = {
+            src = prev.fetchFromGitHub {
+              owner = "raspberrypi";
+              repo = "firmware";
+              rev = "${version}";
+              hash = srcHash;
+            };
+          };
+        };
     })
   ];