I moved my IBM370 VM/370 docker container image to multi-arch but I don’t have a RISCV (or POWER, or s390x) metal running Docker to make sure Hercules starts up correctly.
There is more information on https://hub.docker.com/r/rbanffy/vm370. Platform-specific tags are on https://hub.docker.com/r/rbanffy/vm370/tags and (you shouldn’t trust me and run my container images) the GitHub repo that has the specs is at https://github.com/rbanffy/vm370