Py-FSRS is a Python implementation of the FSRS algorithm, a modern
spaced repetition scheduler used by Anki 23.10+ as an alternative
to SM-2. It predicts memory stability and retrievability to optimize
review scheduling for better long-term retention.
WWW: https://github.com/open-spaced-repetition/py-fsrs
Signed-off-by: Christos Longros <chris.longros@gmail.com>