Build a complete distribution using OBS

hi， I originally planned to use openSUSE's OBS, but unfortunately it does not support mips64el architecture, so I built an OBS on my computer. The software package can now be compiled normally.I plan to use it to build a complete distribution, I refer toopenSUSE:Factory, But I did not understand how the standard in its repositories is configured.Does anyone understand?Can you give me some guidance? thanks！