Glossary
AGPL-3.0
The GNU Affero General Public License: a free software licence that also asks whoever offers a modified version over a network to share its source with those users.
The GNU Affero General Public License v3.0 (AGPL-3.0) is a free software licence: you may run, study, change and share the software. Its particular clause is section 13: if you modify the program, your version must offer the users who interact with it remotely over a network a way to get its source code.
It was written for software people use through a browser, where the GPL’s obligations would otherwise never apply, since nothing is distributed. Soldlyne is under this licence. See what it means for self-hosting. This is general information, not legal advice.