Stop Over-Engineering. Ship the Simple Thing.
Over-engineering feels like thoroughness. It is not. It is anxiety dressed up as architecture.
You do not need a database for a tool that runs in a browser. You do not need a login system for a one-page converter. You do not need a microservices setup for a tool used by three hundred people a month.
THE PLUMBER TEST
One leak — fix the pipe. Two leaks — fix both pipes. Five leaks in the same wall? Replace the wall. Patching five leaks on a bad pipe is not engineering. It is procrastination with extra steps.
Same rule applies to software. One bug, fix it. Three bugs in the same function? Rewrite the function. Do not patch what should be replaced.
WHY WE KEEP IT SIMPLE
Simple things ship. Complex things get refactored forever and never ship.
A plain HTML file with a script tag has zero dependencies. It loads in milliseconds. It works offline. It does not break when a package updates. The boring solution is usually the correct one.
Build the simple thing first. If it breaks under load, it means people are using it. That is a good problem to have. Deal with it then.