Saving the renamed device names

I have just installed a new eero Pro system. I have gone through the effort of identifying all the devices on the network that used generic names. I've renamed them to be useful names. Are these changes saved somewhere in case of disaster? I would really like to save the effort just in case the task needs to be done again.

Of course I could go through and make a document of real name vs MAC address, but there are quite a few devices so that would be a bunch of work.