CommandRegistry.INSTANCE.register(false, serverCommandSourceCommandDispatcher -> serverCommandSourceCommandDispatcher.register(
   ServerCommandManager.literal("compass")
      .executes(context -> {
         BlockPos pos = new BlockPos(x, y, z);
         ServerPlayerEntity player = context.getSource().getPlayer();
         PlayerSpawnPositionS2CPacket packet = new PlayerSpawnPositionS2CPacket(pos);
         player.networkHandler.sendPacket(packet);
      })
  ));