> After I felt comfortable I'd start to consult on the side on weekends for up to $53k of annual tax-free solo 401k sheltered income.

May someone please explain this? I wasn't aware of a different 401k contribution limit for freelancing.

> Life doesn't present a ton of these "sell picks and shovels to gold miners" opportunities but this is definitely one of them.

Feel like this is more akin to a goldminer working 24/7. Selling "picks and shovels" is what landlords / AWS / food delivery / ride-shares are doing.