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- 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.
- 1. GNU social main site, <https://gnu.io>
- 2. GNU social repository, <https://git.gnu.io/gnu/gnu-social>