Tidy up config, remove lix.

suites/default.nix

@@ -15,9 +15,15 @@ with lib; {
     "flakes"
   ];
 
+  # Set $NIX_PATH.
+  nix.nixPath = ["nixpkgs=${inputs.nixpkgs}"];
+
   # Enable redistributable firmware.
   hardware.enableRedistributableFirmware = true;
 
+  # Enable firmware updates.
+  services.fwupd.enable = true;
+
   # Set time zone.
   time.timeZone = "Australia/Perth";
 
@@ -62,10 +68,10 @@ with lib; {
   # Use fish shell
   programs.fish = {
     enable = true;
-    shellAbbrs = {
-      nrs = "nixos-rebuild switch --use-remote-sudo --flake /home/fern/Repositories/flock/";
-      nrt = "nixos-rebuild test --use-remote-sudo --flake /home/fern/Repositories/flock/";
-      nrb = "nixos-rebuild boot --use-remote-sudo --flake /home/fern/Repositories/flock/";
+    shellAbbrs = let flake = "/home/fern/Repositories/flock"; in {
+      ns = "nh os switch --flake ${flake}";
+      nt = "nh os test--flake ${flake}";
+      nb = "nh os boot --flake ${flake}";
     };
     interactiveShellInit = ''
       # set gruvbox theme

suites/desktop/default.nix

@@ -28,9 +28,6 @@ with lib; {
     binfmt.emulatedSystems = ["aarch64-linux"];
   };
 
-  # Enable firmware updates.
-  services.fwupd.enable = true;
-
   # Enable zram swap.
   zramSwap.enable = true;
 
@@ -82,9 +79,6 @@ with lib; {
     ]
   );
 
-  # Remove NixOS HTML manual
-  documentation.doc.enable = false;
-
   # Run electron apps under wayland.
   environment.sessionVariables.NIXOS_OZONE_WL = "1";
 
@@ -136,7 +130,7 @@ with lib; {
   # Enable CUPS to print documents.
   services.printing = {
     enable = true;
-    drivers = [pkgs.brlaser pkgs.cups-dymo];
+    drivers = [pkgs.brlaser pkgs.cups-dymo]; # Brother laser printer & Dymo label printer.
   };
 
   # https://github.com/tailscale/tailscale/issues/4432#issuecomment-1112819111

suites/server/vm/default.nix

@@ -1,9 +1,4 @@
-{
-  modulesPath,
-  lib,
-  ...
-}:
-with lib; {
+{modulesPath, ...}: {
   imports = [
     (modulesPath + "/profiles/qemu-guest.nix")
     ../. # Server config.