Any Spaced Repetition Systems Recommendations? (to help memorize master passwords)

Questions
1

Hello everyone,

You know how Signal uses this SRS system to help users remember their pin? Are there any open source, local, offline, lightweight programs that do just that?

I want to be prompted with spaced but decreasing frequency to enter 2 or 3 master passwords.

I did some research and found several options but they’re either way too big and not specifically for this simple task, or not being maintained anymore (or facing system compatibility issues).

Appreciate your recommendations.

(I think sometimes they’re called flashcards)

2

Remeber that its not security hardened in any way, just a FOSS flashcard app

3

yeah I hyperlinked this one in my OP as being way too big for such a purpose. Than