@patrick yes.
GoToSocial is something I am watching closely and want to set up a personal instance on.
MissKey is uhh a whole different ball of wax.
As much as I would love to see more software diversity in the fedi space, Mastodon-the-software is kinda "it" for a lot of communities.
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.