If you did not migrate your account yet, visit https://idp-portal-info.suse.com/
Due to the demand for an open z Systems distribution, we started to build the architecture s390x on the Open Build Service. Find the development project page at openSUSE:Factory:zSystems. If you want to contribute, it is recommended to submit patches via openSUSE:Factory. They will be transferred to the zSystems port after the approval.
Please join the opensuse-zsystems mailing list for questions or help.