Kamal Proxy is a tiny HTTP proxy, designed to make it easy to coordinate
zero-downtime deployments. By running your web applications behind Kamal Proxy,
you can deploy changes to them without interrupting any of the traffic that's in
progress. No particular cooperation from an application is required for this to
work.

Kamal Proxy is designed to work as part of Kamal, which provides a complete
deployment experience including container packaging and provisioning. However,
Kamal Proxy could also be used standalone or as part of other deployment
tooling.