Earlier quoted context omitted.
I'm able to pass interviews very well, but when it comes down to doing senior level programming stuff, I really suck at it. I tried rewriting old.editfight.com the other week in React + Express + TypeScript and it took me 3 days just to get the basic boilerplate working. But I can tell an interviewer what big-O notation means and can write a working fizzbuzz using functional programming techniques in ESNext. Even if…
It takes everybody several days to get the boilerplate working. The people who do it in an hour are using some cookie-cutter like yeoman and have a bunch of tooling/config in their project they don't understand.
The amount of software you've produced and published using a variety of stacks -- Objective C, Cocoa, Swift, JS, Node, Clojure -- and APIs is really impressive. Most people haven't even tinkered with that many things, nevermind publish stuff out for the public to use. That last part is an extremely high hurdle, especially since it requires UI/UX skills and user empathy.
Hell, even your portfolio website is far-above par for any software engineer. Not just in content, but the well-considered layout and visual design.
I don't want to downplay your situation, you indeed have an uphill climb. But you do have skills and actual experience that put you in higher probability at success with software publishing, compared to most software engineers who were to find themselves forced to find employment without the ability to network or get recommendations. Hopefully you can find success again in iOS publishing. I think many if not most iOS developers would be envious of the variety in just your iOS portfolio.