I'm thinking of planning out my own home/property that is entirely self-sustained for everything relevant.

Salmon pond/lake, perhaps shrimps if you can raise them "at home" somehow to feed the salmon (and myself). Have the water somehow create a cycle that cools the Bitcorn farm that is powered by state of the art solar panels with the excess heat warming a greenhouse with herbs and "herbs" all of which get watered by the lake-water cycle. Perhaps have some animals dicking around for eggs and meat (especially if private labs become a possibility). Then the obvious spa/pool/sauna, a gym, a home arcade, theatre, music room, a racing track(?) and other frivolous luxuries that are available and viable. Turns out private live-in chefs are relatively cheap too at 20 to 40k a year. And then just occasionally leave the property for travel.