Reminds me of one of my backlogged projects: I'd like to have an SRS app that just draws cards at random, with probabilities proportional to how 'urgently' you

Reminds me of one of my backlogged projects: I'd like to have an SRS app that just draws cards at random, with probabilities proportional to how 'urgently' you need to review the cards (using the same logic of exponential growth in review intervals). I just couldn't get myself to stick with Anki so far, because I didn't like the 'X cards to review today' UX of the SM2 algorithm. I also think it's false accuracy trying to predict the exact review time down to the minute, I couldn't find much research supporting that any of the SM family algorithms would be the claimed optimum. If that already exists, ideally compatible with Anki cards, I'd be happy for recommendations. I have other projects and ideas that I feel would add more to the world than the umpteenth Anki-clone.