diff --git a/Makefile b/Makefile
index 729bf9ad..0da77130 100644
--- a/Makefile
+++ b/Makefile
@@ -12,3 +12,6 @@ switch:
 .PHONY: test
 test:
 	nixos-rebuild --flake ".#${HOST}" dry-activate
+
+.PHONY: update
+	nix flake update
diff --git a/hosts/ni/default.nix b/hosts/ni/default.nix
index 1f61bcb9..cf78957d 100644
--- a/hosts/ni/default.nix
+++ b/hosts/ni/default.nix
@@ -54,6 +54,9 @@
   # Enable CUPS to print documents.
   services.printing.enable = true;
 
+  # More power optimizations!
+  powerManagement.powertop.enable = true;
+
   # Enable touchpad support (enabled default in most desktopManager).
   hardware.opentabletdriver.enable = true;
 
diff --git a/users/foo-dogsquared/default.nix b/users/foo-dogsquared/default.nix
index 3f57be73..3414b1c3 100644
--- a/users/foo-dogsquared/default.nix
+++ b/users/foo-dogsquared/default.nix
@@ -14,7 +14,10 @@
   # My custom modules.
   modules = {
     i18n.enable = true;
-    dev.enable = true;
+    dev = {
+      enable = true;
+      shell.enable = true;
+    };
     desktop = {
       enable = true;
       graphics.enable = true;