# 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 - [Devices](https://canonical.com/lxd/docs/default/reference/devices/index.html.md): Devices are attached to an instance (see Configure devices) or to a profile (see Edit a profile). ## Optional - [Top-level llms.txt](https://canonical.com/lxd/docs/default/llms.txt): Complete documentation index.