I don't know what's the default, but you basically just have to pick the FSRS algo and you're good. That one is actually based on scientific research: https://g

I don't know what's the default, but you basically just have to pick the FSRS algo and you're good. That one is actually based on scientific research: https://github.com/open-spaced-repetition https://github.com/open-spaced-repetition