Introduction
Recently I worked on a feature that revolves around expiring quotes in a multi-step fintech flow. What made this interesting was the frontend architecture behind it. State management, timing-sensitive UX, dynamic forms, and render performance all collided here, and each one forced a real design decision.
Here's how I approached the trickiest parts.
The snippets below are simplified examples intended to illustrate the architecture rather than production code.
The Problem: Three Things Happening at Once
