Plume
Federated blog platform. ActivityPub-based. Rust, launched 2017. Users can follow blogs via Mastodon — a new post shows up in the Mastodon feed as a regular post with a link to the full version.
Competitor: WriteFreely (Go), Ghost Federation (ActivityPub support 2024+). Plume development has been sporadic — several years without releases between 2020-2023, woken up in 2024. Multi-author blogs: an instance can be editor-driven (similar to a Substack publication) or individual blogging. Markdown rendering, syntax highlighting. Small installed base (~hundreds of instances) but example of the fediverse concept for long-form writing beyond microblogging.