diff --git a/systems/x86_64-linux/carbon/default.nix b/systems/x86_64-linux/carbon/default.nix
index a2f2ac5..36a304a 100644
--- a/systems/x86_64-linux/carbon/default.nix
+++ b/systems/x86_64-linux/carbon/default.nix
@@ -1,4 +1,5 @@
-{pkgs, ...}: {
+{ pkgs, ... }:
+{
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration-zfs.nix
@@ -7,7 +8,7 @@
 
   aa = {
     nix.enable = true;
-    nix.useSelfhostedCache = true;
+    nix.useSelfhostedCache = false;
 
     archetypes.workstation.enable = true;
 
@@ -34,6 +35,12 @@
   # See: https://github.com/NixOS/nixpkgs/issues/180175
   systemd.services.NetworkManager-wait-online.enable = false;
 
+  services.tlp.settings = {
+    USB_DENYLIST = "0000:1111 2222:3333 4444:5555";
+  };
+  # Still need to run `nix run nixpkgs#bolt -- enroll DEVICE_UUID`
+  services.hardware.bolt.enable = true;
+
   time.timeZone = "America/Los_Angeles";
 
   # List packages installed in system profile. To search, run: