Self-Hosting Overview - Vantage Wealth

Architecture

Components

Component	Where it runs	Required
Flutter app	Your Android device	Yes
Supabase	Supabase cloud (or self-hosted)	Yes
FastAPI backend	VPS, EC2, Railway, Fly.io	Yes
Embedding server	Same server as FastAPI	Optional (for AI memory)

Minimum requirements

FastAPI backend:

1 vCPU, 512 MB RAM (t3.micro or equivalent)
Python 3.11+
Open port 8000 (or behind nginx on 443)

Embedding server (optional):

2 vCPU, 2 GB RAM recommended
The BAAI model loads ~180 MB into memory
Docker installed

Data privacy

All your financial data lives in your own Supabase project. Vantage never sends transaction data to any third-party analytics service. The only external API calls are:

Anthropic API (your question + relevant context, no raw transactions)
Yahoo Finance / CoinGecko (ticker symbols only, no personal data)

Deploy to AWS EC2

Full guide for deploying the FastAPI backend to AWS EC2 with nginx and systemd.