Telegram bot for learning Spanish vocabulary using spaced repetition (SM-2 algorithm). Built with Python, python-telegram-bot, and PostgreSQL. Self-hosted on Hetzner with Docker.

Compass · A self-hosted spaced-repetition quiz tool powered by FSRS-6. Import Markdown/Excel/Word banks, keyboard-driven answering, algorithm-scheduled reviews. A modern self-hosted Anki alternative.

Dependency-free FSRS-6 scheduling and optimization library for C#

Production Frontend