Working on an incremental reading / spaced repetition app that uses the best spaced repetition algorithms. I reverse engineered SuperMemo 18's algorithm (https://github.com/melpomenex/sm18-re), SuperMemo 20's algorithm (https://github.com/melpomenex/sm20-re). https://github.com/melpomenex/incrementum-tauri you can try the demo (not everything that works in the Tauri version works on web) here: https://readsync.org