I never claimed to be a competent full-stack web developer.
I'm an AppSec engineer. I don't write a lot of code, and when I do, it's entirely scripts and occasionally modifying existing code (both front- and back-end, but more often back-end) to implement security fixes.
That said, I could probably hobble it together. It'd be ugly as sin with hand-written Web 1.0 style HTML and likely server-side rendering since I hate writing front-end code, but it really wouldn't be hard as long as you're keeping it simple - Just text posts (No video/pictures, though maybe that wouldn't be too hard to add?), no algorithm for engagement (just chronological ordered tweets), no analytics to determine what's trending. Obviously no mobile app.