# Juju > Juju is an open source orchestration engine for deploying, integrating, and managing applications across Kubernetes, VMs, and bare metal using software operators called charms. 2026 CC-BY-SA, Canonical Ltd. ## Pages in this subsection - [How to manage metadata](https://documentation.ubuntu.com/juju/2.9/howto/manage-metadata.md): Using this to replace https://juju.is/docs/juju/cloud-image-metadata (https://discourse.charmhub.io/... ## Optional - [Top-level llms.txt](https://documentation.ubuntu.com/juju/2.9/llms.txt): Complete documentation index.