Add postPostBuildAdmin configuration file

[g-braeunlich]

Closes: #1009

[betatim]

A note on form: Please don't create an issue and a PR that closes it at the same time. It tends to split up discussions and creates twice as many notifications. If there is something you have code for it is better to open a PR directly and discuss there. If there is no code yet (maybe you first want to build consensus before coding) an issue is better.

I'll join the discussion in the issues as that has more details than the top comment here.

[g-braeunlich]

OK. Sorry. Shall I remove the Closes link?

[ctr26]

Would love to see this