You are trying to hedge against a future which is both much richer in absolute terms but much less lucrative re/ your current skills. So the minimum viable strat is: Invest in index funds. Trust that the world's biggest firms are also probably pretty interested in increasing their economic productivity. Let the wheel turn. That's my "macro" strategy.

My "micro" strategy is to continue to work hard, go for interesting niches and keep learning how to increase my own output.