Building SafeSphere: React, FastAPI, and a clear risk decision

How v3 is structured — input → analysis → SAFE / SUSPICIOUS / DANGEROUS → next steps, with Postgres and Redis.

Stack

React 19 + TypeScript frontend, FastAPI backend, PostgreSQL + Redis, Docker Compose.

User input (link · QR · email · file) → API → analysis + reputation (Redis cache) → risk decision → plain-English next steps in the UI.

Production-shaped personal security app — documented for collaborators and recruiters, open source on GitHub.