Let me propose to you an idea that bridges a Lisp and a weekend web app for you: write the infamous TODO app using the React framework using a Lisp. Transpile that Lisp into JavaScript to get it to run in a browser. Depending on your level of perseverance either write that transpiler yourself, or pick one that already exists (like ClojureScript), or even just write your function that outputs JS.

I have done that a decade ago before React was even popular. Even if only the syntax is different, it was and is much nicer than writing JSX.