Hi Bob, thanks for the response and sorry for the late reply. I think that's a good path as well. Replicating the Savannah structure, especially groups and permissions, is going to be painful.
I know very little Ruby, unfortunately. Gitlab uses PostgreSQL. So a pure MySQL/MariaDB sync would not work, but a periodic SQL export might. Let me know how we can get this done and if I can help. I replied to you separately about access. Ted