In case you missed it, you can also follow accounts through RSS by adding .rss to the end of the account's profile web address. (For example mine would be https://mstdn.social/@feditips.rss)
This only shows public posts though, so it's not the same as following within the Fediverse.
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.