[Karibu]

In one PBW game I did as follows:

I had 3 starting planets and full tech so it made my choices simpler (all home planets had level 3 resource productioon facilities so there was no shortage of the resources first). First 10 turns I emergency built 10 construction bases in every homeworld. By then I had 30 bases to product colonyships while my 3 planets recovered from the emergency build.

Then, on every planet I colonize/conquer, first thing I build is Space yard. Then all production is faster. Needless to say, I got shortage of resources at the very beginning, but When I colonized new colony, I made it build mines and rad extraction facilities. My bases made colonyships fast enough (10/turn). So, I kept delicate balance in my resources (always zero), until I got enough planets to produce more resources than I was able to use. Then I ordered all my planets to build 1 or 2 construction bases which made more ships. etc.

Eventually, I had 2 or 3 times more bases making ships than I had planets, but my planets build then monolith facilities and robotic factories, etc. so there was no shortage of the resources anymore.