Ask HN: Self-taught webdev with lots of free time. What should I learn?

Hey HN,

I'm a self-taught webdev with 10 years xp. I have lots of free time right now with a bit less freelance projects coming in, and I'm getting a bit bored of building web CRUDs and feel like I'm not learning much anymore.

I'm thinking it'd be better to specialize more, but I'm unsure which direction to go. I'm actually selling myself as a full-stack web developer, knowing JS/react/vueJS, PHP/Laravel, bit of design, server management etc.

If possible I'd like a job that can be fully remote or at most 1 day on site, which probably excludes security and high level stuff.

I have lots of time to learn so I'm open to any advice even if it's just to git gud and read SICP.

tl;dr webdev having done every type of CRUD under the sun - what do now

Thanks for your input !

I found that learning and writing some Clojure and Go made me think better about the code I was writing in my main language (python).

I enjoyed working through Clojure for the brave and true: https://www.braveclojure.com/clojure-for-the-brave-and-true/

and the go tour is probably the best introduction I've ever had to a language: https://tour.golang.org/welcome/1

Project Euler is also always nice to learn more things about math.

If you're not already well-versed: get familiar with Google Analytics, Google Tag Manager, Funnels, a/b Testing etc. It's cool to know other tools as well, but privacy concerns or not, GA + GTM are the default. They're largely underused, but my experience is that clients love it when you can set it up for them, especially in combination with Adsense/Adwords to optimize their campaigns.

Besides all kind of data science/machine learning, what about learning the "greybeard" mastering of Unix servers? This will connect a lot of old-grown idioms (think about daemons, classical TCP services, etc.) and get you a lot of knowledge in networking (which has connections to event-based networking and thus asyncio, greenlets and all that).