reformat all the nix files

using
    nix run -f channel:nixos-unstable nixfmt -c nixfmt $(git ls-files *.nix)

role/base/default.nix

@@ -13,16 +13,26 @@
     consoleKeyMap = "sg-latin1";
     defaultLocale = "en_US.UTF-8";
   };
-  
+
   environment.systemPackages = with pkgs; [
-    wget curl vim tmux git ncat bind ack
-    fwupd pciutils dmidecode smartmontools parted
+    wget
+    curl
+    vim
+    tmux
+    git
+    ncat
+    bind
+    ack
+    fwupd
+    pciutils
+    dmidecode
+    smartmontools
+    parted
     borgbackup
   ];
 
   services.fwupd.enable = true;
 
-
   # Networking
   networking.firewall = {
     allowPing = true;