Instances are effectively just different versions of the site, they all communicate with each other and display the same data (roughly), like someone said in a different post, think of it like Email, wherever you made your account being your host domain (An example being look at mine and your username, you are posting from Beehaw, while I’m from Sh.itjust.works, different instances, same content.)
forum works, board also works. Instances are new to me and interesting.
Instances are effectively just different versions of the site, they all communicate with each other and display the same data (roughly), like someone said in a different post, think of it like Email, wherever you made your account being your host domain (An example being look at mine and your username, you are posting from Beehaw, while I’m from Sh.itjust.works, different instances, same content.)