Web app development [1]. I know I know, it's 2024 and my friends are doing very cool things with LLMs, but I started a bit late in life and am just catching up with the 20th century (and I feel just fine about it :).
[1] In fact, I just published a blog post about it! Clojuring the web application stack: Meditation One: https://www.evalapply.org/posts/clojure-web-app-from-scratch...