diff --git a/nix/deployments/nixops.nix b/nix/deployments/nixops.nix
index a8fded4..76d4c18 100644
--- a/nix/deployments/nixops.nix
+++ b/nix/deployments/nixops.nix
@@ -21,15 +21,31 @@ in
 
       # for nixops to log in and perform operations as haak (instead of root)
       security.sudo.wheelNeedsPassword = false;
+      home-manager.users.haak = (import ../home/commandline.nix);
+
+      # Configure the root account
       users.users.root.openssh.authorizedKeys.keys = [
         (import ../system/framework/keys.nix).ssh.public
       ];
-      home-manager.users.haak = (import ../home/commandline.nix);
+      users.extraUsers.root = {
+        shell = pkgs.zsh;
+      };
 
       environment.systemPackages = with pkgs; [
         tmux
         ripgrep
+        htop
       ];
+
+      # Optimize nix store by hardlinking identitical files.
+      nix.settings.auto-optimise-store = true;
+
+      # Limit the systemd journal to 100 MB of disk or the
+      # last 7 days of logs, whichever happens first.
+      services.journald.extraConfig = ''
+        SystemMaxUse=100M
+        MaxFileSec=7day
+      '';
     };
 
   server =