federated shopping: each seller has their own page that they run independently, i.e. their brand's account. local "timelines" are just that - things that are local to your area, encouraging people to participate in their local economy. federated "timelines" would be something similar to Amazon or Ebay where you can buy from anyone in the world (filtering could be done easily if the seller doesn't ship to your area)
This is a brand new server run by the main developers of the project as a spin-off of mastodon.social It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!