Side project

Personal investment tracker

Monorepo of independently deployable FastAPI services behind a React SPA. Core is the BFF; domain services own disjoint data and talk over HMAC. Built end to end — portfolio tracking, market data, AI analysis, scraping, and notifications.

Open demo Back to projects

6FastAPI services

1React SPA

5External systems

JWT + HMACAuth model

Try the demo

Part of the functionality is capped to read-only to minimise API cost — demo mode uses seeded market data, canned AI responses, and omits scraper and notifications.

Architecture

Interactive system diagram — click nodes, follow guided stories, and inspect relationships without leaving this page.

Open in a new tab →

Stack

React
Vite
FastAPI
Python
PostgreSQL
Docker
WebSockets
Playwright
JWT
HMAC service auth
Cloudflare Tunnel
Caddy
Tailscale