diff --git a/hosts/pi3bplus/configuration.nix b/hosts/pi3bplus/configuration.nix
index 77b2bc0..7df5dec 100644
--- a/hosts/pi3bplus/configuration.nix
+++ b/hosts/pi3bplus/configuration.nix
@@ -13,6 +13,9 @@
 
     kernelPackages = pkgs.linuxPackages_latest;
     supportedFilesystems = lib.mkForce [ "btrfs" "reiserfs" "vfat" "f2fs" "xfs" "ntfs" "cifs" ];
+
+    # Delete all files in /tmp during boot.
+    tmp.cleanOnBoot = true;
   };
 
   networking.hostName = "pi3bplus"; # Define your hostname.
diff --git a/hosts/pi3bplus/hardware-configuration.nix b/hosts/pi3bplus/hardware-configuration.nix
index 954d38b..cee95e1 100644
--- a/hosts/pi3bplus/hardware-configuration.nix
+++ b/hosts/pi3bplus/hardware-configuration.nix
@@ -14,13 +14,13 @@
   boot.extraModulePackages = [ ];
 
   fileSystems."/" =
-    { device = "/dev/disk/by-uuid/44444444-4444-4444-8888-888888888888";
+    { 
+      #device = "/dev/mmcblk0p2";
+      device = "/dev/disk/by-uuid/44444444-4444-4444-8888-888888888888";
       fsType = "ext4";
     };
 
-  # TODO
-  #swapDevices = [ { device = "/swapfile"; size = 2048; } ];
-  swapDevices = [ ];
+  swapDevices = [ { device = "/swapfile"; size = 2048; } ];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's