A home hosted build server for continuous integration is always crap and a blocker for everyone. If you don’t have 5(yes, five) full time admins/devops to support that, forget about building the infrastucture yourself. There are companies whose business is to provide CI as a service, why do you think you can beat them with your crappy Jenkins installation?

I’ve seen a 200 company failing with 2 people. I’ve seen another one completely failing, because the admins didn’t know what CI meant, and a small one failing with 0.5. The only place where it kind of worked used Gitlab.