Ask HN: Now what?
Then you have realized that there is absolutely no market to this kind of academic, mostly theoretical, classic knowledge. You are supposed to have a top-tier CS degree from an Ivy league college to get one of these high paying job in the valley (not necessarily possessing even a half of CS knowledge I've accumulated) or to compete on an online sweatshops like UpWork for $10 a task (well, I am exaggerating a bit).
Of course, I know how wonderful it is to write an open source software for the benefit of humanity as a whole, or how to contribute to a top-tier open source project (hello all the guys who are submitting all these minor typo corrections and insignificant code reordering patches to ghc or golang to see their names in History) but I literally have no idea what should I program and why.
The positions for writing, say, fintech in Haskell for a startup in London or for improving Dotty in Geneva, or writing Erlang in Sweden are quite limited (related to a population of 7 billion) so you better to have an Ivy leagues credentials, indeed. There is, of course, no demand for top-tier functional languages on Upwork. (I won't even touch PHP or Java, sorry).
So, what next? Give it up and run some fast food joint and what not? Small business? The time of garage startups are long gone. To teach kids in a third world? Well, even this requires a diploma.
Is there some darknet marketplace where people really don't care who you are and how old are you as long as you are able to produce a high quality code?