[Suicide Junkie]

IIRC, Homeworlds get:
- 1 Space port ability
- 1 space yard
- 1 resupply depot ability
- 1 organics extraction ability (highest available)
- 1 radioactives ability (highest available)
- 50% of remainder is mineral extractors, the rest is research centers.

You can mess with which facilities are placed on a homeworld by changing the abilities on various facilities.

EG, if you make a Space Yard with a resupply depot ability, SE4 will use the facility twice!
That means homeworlds get 2x the production rate, and the homeworld yard cannot every be duplicated or replaced, making it a valuable resource.