diff --git a/lib/default.nix b/lib/default.nix
index 5220c42..b41bfb3 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -8,6 +8,7 @@ let
     home-manager = {
       useGlobalPkgs = true;
       useUserPackages = true;
+      backupFileExtension = "backup";
       extraSpecialArgs = {
         inherit inputs username;
       };
diff --git a/modules/darwin/default.nix b/modules/darwin/default.nix
index 4c72eaa..78aa0a2 100644
--- a/modules/darwin/default.nix
+++ b/modules/darwin/default.nix
@@ -49,7 +49,6 @@
     brews = [
       "ffmpeg"
       "mas"
-      "memo"
       "mole"
       "pandoc"
       "tailscale"