# 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 - [OpenStack](https://documentation.ubuntu.com/juju/3.6/reference/cloud/list-of-supported-clouds/openstack.md): Deploy on OpenStack cloud using Juju, including supported versions, novarc file configuration, and authentication with Keystone. ## Optional - [Top-level llms.txt](https://documentation.ubuntu.com/juju/3.6/llms.txt): Complete documentation index.