I run deadinsi.de. I wrote some kubernetes definitions and they work, but in the end there was too much overhead, uncertainty about storage stability and cost to keep it running on k8s.

But if you have access to a cluster and want to try it, here you go: https://github.com/SerenityLaboratories/cluster

It includes a storage provider I wouldn't trust all too much yet and the docs are sparse, but you should be able to get it running if you know Kubernetes.