@Jhayward @KarMarJo57 sure :) Local timelines are posts from everyone on dingdash.com who posts publicly. Dingdash is a sub-community of a larger social platform called Mastodon. If we were connected to other communities, we'd be able to see posts from them. Those would appear in the federated timeline. Here's a link w a bit more info: https://www.theverge.com/2017/4/7/15183128/mastodon-open-source-twitter-clone-how-to-use