Most spaced-repetition apps split reading notes and review cards across two tables and require a 'convert to flashcard' step. FreedWise collapses them: every highlight carries its full FSRS state as columns, a single transaction grades a card and appends to the review log, and fallback scheduling ensures algorithm failures never block a review session.
A deep dive into implementing robust create-or-update (upsert) logic in a Flask API using SQLAlchemy. This tutorial covers handling JSON array storage, atomic record replacement, and partial updates while ensuring proper session management to prevent connection leaks.
A full-stack medical monitoring system that enables real-time collection, analysis, and visualization of CPAP data for sleep apnea patients in clinical sleep labs.
FreedWise collapses reading and spaced-repetition review into one offline-first mobile app. You highlight, FSRS schedules it. No account, no sync server, no network — the whole system lives in SQLite on your device. The hardest part was building a single WebView reader that handles both EPUB and PDF across 17 iterations of vendor asset versioning.
