2026
HaruSync
A planner app designed to help users set goals, manage tasks and schedules, and reflect on their day.
Fullstack Developer
I am a solo developer based in South Korea, focused on creating apps that provide value and enhance daily life.
What I optimize
Intuition, clarity, scalability, maintainability
What I build
Infrastructure, internal tools, apps, landing pages
How I work
Appropriate language selection, validation tests, automation, documentation
How I Work
Balancing perfection and incremental improvement
I strive for optimal decisions that balance efficiency and quality.
I work in small units with scalability in mind, maintaining a structure that is easy to maintain.
I meticulously validate and deploy quickly through automation.
What I Build
Principles that guide execution and improvement
PrototypesUtility ToolsProductivity AppsValue Creation
Featured Work
Selected projects worth a closer look
2026
EchoMoment
Provides delayed auditory feedback (DAF) during recording and lightweight auto-play features.
Contact
Do you have a project in mind?
Share your context briefly and I will reply personally.