diff --git a/flake.nix b/flake.nix
index 32287ed..f0693de 100644
--- a/flake.nix
+++ b/flake.nix
@@ -91,6 +91,7 @@
           home-manager.nixosModules.home-manager
           {
             home-manager = {
+              backupFileExtension = "hm-backup";
               useGlobalPkgs = true;
               useUserPackages = true;
               users.nmarks = import ./hosts/desktop/home.nix;
diff --git a/hosts/desktop/home.nix b/hosts/desktop/home.nix
index 6e43d0c..4030f77 100644
--- a/hosts/desktop/home.nix
+++ b/hosts/desktop/home.nix
@@ -60,6 +60,7 @@ in {
         #broken on macos
         calibre
         mpv
+        wireguard-tools
       ]
       ++ [
         zls.packages.x86_64-linux.zls
diff --git a/hosts/shared/home-programs.nix b/hosts/shared/home-programs.nix
index 3ff5a8a..0662bf2 100644
--- a/hosts/shared/home-programs.nix
+++ b/hosts/shared/home-programs.nix
@@ -55,12 +55,15 @@
         name = "tide";
         inherit (pkgs.fishPlugins.tide) src;
       }
+      {
+        name = "!!";
+        inherit (pkgs.fishPlugins.bang-bang) src;
+      }
     ];
     shellAliases = {
       reboot-windows = "sudo efibootmgr --bootnext 0000; sudo reboot -h now";
     };
     shellInit = "test -r '/Users/nmarks/.opam/opam-init/init.fish' && source '/Users/nmarks/.opam/opam-init/init.fish' > /dev/null 2> /dev/null; or true";
   };
-
   home-manager.enable = true;
 }
diff --git a/hosts/shared/packages.nix b/hosts/shared/packages.nix
index 8c6d89d..68d7a40 100644
--- a/hosts/shared/packages.nix
+++ b/hosts/shared/packages.nix
@@ -28,7 +28,6 @@ with pkgs; [
   anki-bin
   tailscale
   openconnect
-  wireguard-tools
 
   #nix tools
   cachix