Quiet Hours Studio

grid-dense

為最佳效率和協作而精心設計的工作空間

量身定制以滿足學生需求，促進學業成就

迎接更井然有序、充實高效的生活方式

I build small, carefully verified productivity tools -- every formula checked against an independent calculation before anything ships.

A flashcard system that schedules itself, using the real SM-2 spaced repetition algorithm -- the same method behind Anki, not a simplified guess.