Show HN: Putt.day - 매일 즐기는 미니 골프 게임

Putt.day taps into the daily puzzle game phenomenon with shared mini-golf challenges, where all players attempt the same hole each day—a format proven successful by games like Wordle and Connections. The physics-based mechanics combined with multiplayer visibility create engagement, though user feedback reveals physics simulation needs refinement. This project demonstrates how constrained daily challenges drive habit formation and viral growth in casual web games.