Zane is a user on dragon.style. You can listen to them or interact with them if you have an account anywhere in the fediverse.
Because I'm an easily confused doofus, I've taken to thinking about Mastodon like:
Home: My neighborhood
Local timeline: My Zip Code
Federated timeline: The Whole Friggin' World
Instances: A parallel universe/AU
@Trungles Think of each instance as islands, some are linked by bridges, some bridges are exclusive to locals only. So home is your island street, timeline is the local paper, federated time line is national paper.