Quartz Labs
Code What I Love. I develop products that make it simple and rewarding to cultivate other's most meaningful pursuits.
Products
Post Black Belt
Jiu‑Jitsu / BJJ Journal app
Post Black Belt is a purpose‑built BJJ training journal that helps you turn every class and roll into measurable progress. Log sessions in seconds with partners, positions, techniques, and reflections; tag 140+ techniques for instant organization; and revisit what matters with a calendar timeline, heat‑mapped technique tree, and gentle reminders. Smart, lightweight analytics surface patterns—what you actually practice, where you improve, and what you forget—while daily, personalized recommendations keep your focus sharp. Designed for speed and clarity, it fits naturally before, during, or after class so you can train more, think less, and progress with intent.
Aurora Eos
The Ultimate Aurora Forecast App
Aurora Eos helps you see the northern lights—effortlessly. Instantly check real-time aurora forecasts, plan your trip, and chase the aurora with confidence. Whether you’re a beginner or a seasoned aurora hunter, discovering nature’s greatest light show has never been easier.
Pixel Timer
Fun and customizable timer with pixel art creativity
Fun and customizable timer application with pixel art and creative time management
About Me
Quartz
Indie Developer
I want to build products inspired by everyday life and travel that positively impact others.
Likes
Principles
- Make products comfortable for users, not makers
- Ship, learn, repeat
- Clarity over cleverness
Stack
- TypeScript
- React
- Next.js
- React Native
- Expo
- Node.js
Contact & Availability
Digital Nomad Journey
- 🇹🇭 Chiang Mai, Thailand
- 🇹🇼 Taipei, Taiwan
- 🇵🇹 Porto, Portugal
- 🇨🇦 Ottawa, Canada