>>23449686
>Dirt sales would be its own commodity.
>>23449707
>earthworms
>>23449725
>Anaerobic bacteria
>>23450245
>If it's random biomass, yeah just get some bacteria.
This begs the question if asteroid mining could provide the raw materials they need to process into soil. I mean, not every asteroid is going to be a goldmine. Carbonaceous asteroids are filled with carbon, water, phosphorus, stuff that can be processed into organic material. It's not the same as getting enough platinum to buy your own planet but it's been proposed https://www.nasa.gov/general/making-soil-for-space-habitats-by-seeding-asteroids-with-fungi/ Asteroids that aren't high in valuable minerals can still be high in organic or organic-to-be materials that another firm can process into valuable soil for colonies.

Honestly, I'm wondering why so many UC rich people have Earth to themselves. Do they rebuild parts of their land with imported space resources and not just resorts? In other timelines like CE, there's the Sahaku family of Orb with their own. There's rich people owning whole empires like the Crossbone Vanguard but theoretically, sufficiently rich people could order a colony constructed exactly to their tastes.