Between 2 and 2.5 years ago, depending on whether you look at https://medium.com/we-distribute/faces-of-the-federation-christopher-allan-webber-on-mediagoblin-and-activitypub-24bbe212867e or https://dustycloud.org/blog/spritely/ I announced the Spritely project. I hedgingly joked while asked to describe it that it's "well, vaporware, mostly".
With the upcoming release of Goblins and its support for real distributed programming (on a mutually suspicious network, even) we'll be approaching the point where it'll be fair to say that Spritely is very much so *not* vaporware, is demonstrably interesting
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!