Push is a lightweight, self-hostable quantified tracking app Core features: - 🔐 Minimalist login — nickname + 6-digit PIN, no email required - 🏋️ Custom data types with Emoji icon support (pull-ups, running, yoga... any activity) - 🎯 Annual goal setting with real-time comparison to year progress - 🏆 Leaderboards — overall ranking + per-data-type rankings - 📲 PWA support, installable to home screen like a native app