Akkoma

Akkoma is a self‑hostable microblogging server that participates in the federated social network known as the fediverse. It implements the ActivityPub protocol, allowing users to interact with accounts on Mastodon, GNU social, Misskey‑flavored, services. The platform supports posting text, photos, videos and unlimited attachments, and it offers features such as emoji reactions, polls, quoting, and unlimited post editing.

The software targets individuals or communities that want to run their own instance while still being able to follow and communicate with users on other fediverse platforms. It is open‑source under the AGPL‑3.0 license, free of subscription fees, and positioned as a stable, production‑ready solution. Akkoma distinguishes itself by emphasizing expressive content—supporting Misskey‑style Markdown and custom emoji reactions—and by maintaining a development pace focused on compatibility with newer fediverse features.