There is a category of website that looks simple from the outside and is surprisingly interesting to build: the daily puzzle site.
Wordle is the obvious example. New York Times bought it for a reported seven figures. But the concept - one puzzle per day, resets at midnight, shareable result - is something any developer can build. I built DailyBrainHub - https://dailybrainhub.com - with six games running on this exact model and the technical decisions were more interesting than I expected.
The daily reset problem
The core mechanic of a daily puzzle site is that everyone gets the same puzzle on the same day. This sounds simple. It creates some interesting decisions.
Option 1: Server-generated puzzles. Your backend picks today's puzzle and serves it via API. Clean, controlled, easy to update. Requires a server.
