Add brew into nix

darwin/configuration.nix

@@ -1,7 +1,10 @@
 { config, pkgs, ... }:
 
 {
-  imports = [ ../modules/personal/fonts ];
+  imports = [
+    ../modules/personal/fonts
+    ./brew.nix
+  ];
   # List packages installed in system profile. To search by name, run:
   # $ nix-env -qaP | grep wget
   environment.systemPackages =
@@ -16,7 +19,7 @@
   nix.package = pkgs.nixUnstable;
 
   # Create /etc/bashrc that loads the nix-darwin environment.
-  programs.zsh.enable = true;  # default shell on catalina
+  programs.zsh.enable = true; # default shell on catalina
   programs.fish.enable = true;
 
   ## Networking related settings