Yep 4x veteran here, first thing I did was refit my scouts and queue up bp and construction for a colonizer hull freighter (PR here)
I figure I probably have a few days until I need to field a fleet for homefront defense? I need a bit to extract resources and build labs to research destroyer and frigate hulls, I doubt even the PR scouts could be effective after a certain point, I just don’t know what that point might be yet.
One more question, do ships/fleets defend the whole system (e.g. in the event you’re offline), or do you need to actually have ships stationed in orbit of each colony? Reason being I was apparently lucky to get 3+1 colonizable planets in my home system and now I have quite a spread to defend if I can’t make just one fleet to intercept hostiles wherever they present.