Zulip has an officially supported, experimental docker image. Please note that Zulip’s normal installer has been extremely reliable for years, whereas the Docker image is new and has rough edges, so we recommend the normal installer unless you have a specific reason to prefer Docker. [0]
A server application without Helm charts? Stateful apps without Kubernetes Operator? For someone living with k8s all day, it feels so strange to need to make a VM, update it, then follow the installation steps and then for years coming having to keep them updated, migrate to new hosts, etc, etc.
[0] https://zulip.readthedocs.io/en/stable/production/deployment...