fix: use nix-darwin daemon socket listener

hosts/darwin.nix

@@ -11,18 +11,24 @@
 
   # We install Nix using a separate installer so we don't want nix-darwin
   # to manage it for us. This tells nix-darwin to just use whatever is running.
-  services.nix-daemon.enable = true;
+  services.nix-daemon = {
+    enable = true;
+    enableSocketListener = true;
+  };
 
   # zsh is the default shell on Mac and we want to make sure that we're
   # configuring the rc correctly with nix-darwin paths.
   programs.zsh.enable = true;
-  programs.zsh.shellInit = ''
-    # Nix
-    if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then
-      . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
-    fi
-    # End Nix
-  '';
+
+  # We don't need this workaround anymore since we're using nix-darwin socket
+  # listener to manage the daemon.
+  # programs.zsh.shellInit = ''
+  #   # Nix
+  #   if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then
+  #     . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+  #   fi
+  #   # End Nix
+  # '';
 
   homebrew = {
     enable = true;