Currently I'm using a bad passphrase and would like to switch to diceware.
However, the kinds of passhphrases I'll be generating won't be recoverable so I must remember them.
Is there any software that helps with this? It must be FLOSS, since I don't want my password manager or phone passphrases (for example) to be sent to some other computer without my knowing.
I'd imagine it'd be helpful if the software nagged you like those alarm clocks that make you solve puzzles, but instead of a puzzle you'd have to type your passphrase with only a partial reminder (or none whatsoever if your memory is good enough).
So basically something between Anki (flashcard software that tracks your level of memorization for each card) and I can't wake up (a nagging alarm clock for Android that makes you solve puzzles and math problems to stop the alarm)
I only have access to Windows, Linux and Android so it needs to run on these platforms.
Thanks in advance.