How I Built a Zero-Knowledge Finance App Without the Cloud

This story was originally published on HackerNoon at: https://hackernoon.com/how-i-built-a-zero-knowledge-finance-app-without-the-cloud.
Why your finance app spies on you, and how I built a free, offline-first alternative in Flutter using local ML, SQLCipher & air-gapped E2EE QR sync.
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How a solo developer built a zero-knowledge, offline-first financial exoskeleton in Flutter without cloud APIs or ad trackers. A technical deep dive into solving E2EE multi-device sync via air-gapped QR codes, running quantitative trading algorithms (Kalman Filters, Markov Chains, FFT) locally, and securing data with SQLCipher.