# LXD > This is the documentation for LXD, a system container and virtual machine manager. 2014-2026 AGPL-3.0, LXD contributors ## Pages in this subsection - [Clusters](index.html.md): An index of reference information for LXD clusters, covering cluster member and cluster link configuration options. ## Optional - [Top-level llms.txt](../../llms.txt): Complete documentation index.