I wonder if you could document the sandbox variant more to use it as a production variant. My target system is actually a single Unix server. From there, the Flyte sandbox variant as a single Docker container seems quite attractive? What am I missing here in my considerations?

yes, you can deploy sandbox in the single node to test Flyte. However, we don’t suggest to run in production because it’s has a single point of failure. The best way to deploy Flyte is using eks or on-prem multi-nodes.