Popular fediverse software
https://files.mastodon.social/media_attachments/files/111/190/225/873/373/876/original/6c4b13c8546c9cf4.png
This "simple" version of the wikipedia Fediverse entry is cool
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.