One sort of "big-picture" idea that I've seen that I think is generally useful is kind of like this: For a VERY long time, Linux was kind of a joke for most.

But I realized that, it being 1% of desktops was still VITALLY IMPORTANT, even when it was never huge -- it provided enough "background pressure" for mainstream things to not screw up overly badly.

I see e.g. "homelabs" and "self-hosting" as doing that right now. And, again, given that Linux won :) -- we will see.