An open source platform for building a writing space on the web... WriteFreely is built around writing... Reach outside your own site with federation via ActivityPub. WriteFreely lets anyone on Mastodon, Pleroma, or any ActivityPub-enabled service follow your blog, bookmark your posts, and share them with their followers. https://writefreely.org/

so, a weblog-engine?

They run their own blogfarm at WriteAs https://write.as/

And will host WriteFreely for you via their https://writefreely.host/

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