Of all the ideas, I built the sleep app first — it was the problem I ran into most often.
No matter how early I set the alarm, it meant nothing once bedtime slipped. The starting point was realizing I had to move the rhythm, not the wake-up time.
2026.06.20
Why I started with circadian rhythm
This post was machine-translated from the Korean original. Where the wording reads oddly or the meaning diverges, the Korean version prevails.