Fediverse memes

I just bought a domain name yesterday with plans to create an instance for my local county. My killer idea is to have a comminity in the instsnce called "the good old days" where older folks can post their stories. I noticed that is a popular thing on facebook. The instance will not be federated as I don't want anything but content which is relavent to the county. It should be somewhat self regulating given the topic limitations. I probably won't even mention federation unless someone else wants to make an instance specific to a certain town or something. Just a way to filter out all the noise on facebook where people can see all tge different news outlets and events from accross the county without being filtered by fb et al.