Is it possible to make a pre-installed WordPress build?

Question

ISPmanager

Good afternoon, is it possible to make a pre-installed WordPress Mulsite assembly (it will initially be all one site) with pre-installed and activated plugins (some should already have settings) and an activated theme?
And do all this in ISPManager. That is, he created a new domain and installed a pre-prepared site with all the stuffing on it.
It would be even cooler if you tell me how to make WordPress itself, plugins and themes AUTO-update not from the main WordPress but from my internal domain? Since you first need to check the plugins... and then update, and doing this on 50 sites is not very convenient.

Answer 1

Yes