diff --git a/hosts/hydrogen/system/boot/default.nix b/hosts/hydrogen/system/boot/default.nix
new file mode 100644
index 0000000..517868d
--- /dev/null
+++ b/hosts/hydrogen/system/boot/default.nix
@@ -0,0 +1,7 @@
+{ pkgs, ... }: {
+  # clean /tmp at each boot
+  boot.tmp.cleanOnBoot = true;
+
+  # use latest kernel
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+}
diff --git a/hosts/hydrogen/system/default.nix b/hosts/hydrogen/system/default.nix
index 3266288..e7c0fd7 100644
--- a/hosts/hydrogen/system/default.nix
+++ b/hosts/hydrogen/system/default.nix
@@ -10,6 +10,7 @@
   imports = [
     (modulesPath + "/installer/scan/not-detected.nix")
     (modulesPath + "/profiles/qemu-guest.nix")
+    ./boot
     ./disko
     ./networking
     ./packages