[tcnj]

Unless something has substantially changed since I last checked, gitlab.com is essentially self-hosted gitlab ultimate with a few feature flags to enable some marginally different behaviour. That is, it uses one multitennant DB for the whole platform.

[karolist]

Not according to [1] where the author said

> This effectively results in two code paths in many parts of your platform: one for the SaaS version, and one for the self-hosted version. Even if the code is physically the same (i.e. you provide some sort of easy to use wrapper for self-hosted installations), you still need to think about the differences.

1. https://yorickpeterse.com/articles/what-it-was-like-working-...