feat: rime-data for both linux & macOS

hosts/harmonica/default.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ ... } @ args:
 
 #############################################################
 #
@@ -17,6 +17,8 @@ in
     ../../secrets/darwin.nix
   ];
 
+  nixpkgs.overlays = import ../../overlays args;
+
   networking.hostName = name;
   networking.computerName = name;
   system.defaults.smb.NetBIOSName = name;