This service uses a Free microblogging tool called **GNU social**. GNU social is available under the [GNU Affero General Public License Version 3.0](https://www.fsf.org/licensing/licenses/agpl-3.0.html), a Free Software license for network services. You can get a copy of the software by following links from the [GNU social main site](https://gnu.io/)¹. The version of the software that runs on *this* site is unmodified from that version. The site also depends on certain libraries and other software; these are all bundled in the [GNU social repository](https://git.gnu.io/gnu/gnu-social)² and release archive files. References ---------- 1. GNU social main site, 2. GNU social repository,