Sole UX/UI Designer responsible for
Brand Website Design: Introducing product value and environmental mission
E-commerce System: Creating seamless purchase experience
Value-added service design: Building community ecosystem for fertilizer exchange
3.5 months | 2023
Adobe XD, Illustrator, Photoshop, HTML, CSS, JS
Established RE GREEN's first owned digital presence, reducing reliance on third-party marketplaces
Created a scalable platform for future community features and partnerships
Transformed one-time transactions into long-term relationships by maintaining ongoing user engagement through LINE.
Strengthened local food systems, demonstrated circular economy principles,and increased public awareness of sustainability.
RE GREEN Digital Experience Design. I designed a complete digital ecosystem for RE GREEN—an enzyme-based kitchen composter—transforming it from a standalone product into a community-driven circular economy platform. The system includes a brand website, e-commerce platform, and a value-added service that connects users with urban farms, enabling them to exchange homemade fertilizer for fresh produce.
Kitchen waste
40% of trash is kitchen waste
Low recycling rate
< 10% recycling rate
Toxic dioxins
Burning produces toxic dioxins
In Taiwan, 40% of trash is kitchen waste, yet the recycling rate has remained below 10% for over a decade. Additionally, the air pollution caused by incinerating kitchen waste poses serious environmental and public health risks. RE GREEN developed an enzyme-based composter that successfully converts kitchen waste into organic fertilizer—but lacked digital infrastructure to reach customers and create lasting engagement. However, the business faced three critical challenges:
The brand relied entirely on third-party platforms (crowdfunding, marketplaces), with no owned channel to communicate values or build direct customer relationships.
Research with early adopters revealed urban users produce more fertilizer than they can use. With limited balcony space, excess fertilizer becomes a storage burden, leading to frustration and product abandonment.
"I bought REGREEN to reduce waste, and it works great—I produce 500g of fertilizer weekly. But my balcony plants only need 100g. I could stop using it, but then I'm back to throwing kitchen waste in the trash, which defeats the whole purpose. The fertilizer keeps piling up—after a month, I had nowhere to put it. I started wondering: Is there any point to this?"
Rapid decline in usage motivation
Product becoming an unused appliance
Unable to perceive tangible value from waste reduction
One-time hardware sales offered no ongoing engagement, community building, or opportunities to create sustained value.

How might we create a digital ecosystem that establishes brand presence, solves the excess fertilizer problem, and transforms one-time buyers into an engaged community?
Establish Brand Presence and Communicate Environmental Values
Provide seamless online shopping experience
Build a fertilizer exchange system on LINE that connects users with urban farms, turning excess kitchen waste into fresh produce and supporting a circular economy.
Why LINE? Platform Selection Considerations
When the team discussed implementation approaches for the value-added service, we considered several options:
Criteria
Website
Standalone APP
LINE Official Account
User Adoption
Must remember to return
Low willingness to download
99.4% + already using daily
Real-time Interaction
Limited
Full support
Full support
Push Notifications
Limited capability
Native support
Reliable delivery
Development Cost
Low
High
Medium
Maintenance
Low
High ongoing cost
Low
Visibility
Depends on SEO
App Store competition
Built-in user base
Age Accessibility
20-60
20-50
20-70
Leveraging LINE's widespread adoption and automated chatbot responses helps achieve business objectives while reducing customer service burden.
Elevated RE GREEN from a standalone composting device into a comprehensive digital ecosystem spanning multiple user touchpoints.
Transformed one-time transactions into long-term relationships by maintaining ongoing user engagement through LINE.
Solved the “excess fertilizer” problem for urban households while creating tangible rewards and fostering community connections.
Strengthened local food systems, demonstrated circular economy principles, and increased public awareness of sustainability.
Systems Thinking Over Interface Design
Design isn’t just about screens—it’s about creating ecosystems. RE GREEN’s value lies in how it connects people with each other and with the environment.
Platform Selection Strategy
Choosing LINE over a custom app taught me that user adoption matters more than feature ownership. We gained immediate reach by working within an ecosystem users already trusted.
Systems Thinking Designing Beyond the Product
RE GREEN taught me to think in systems—designing not just a composting device interface, but an entire ecosystem connecting users, farms, and the circular economy.
Conversational Design Fundamentals
My first chatbot project taught me how structured dialogue options reduce decision paralysis, making services accessible across all user skill levels.
Behavioral Design Designing for Habit Formation
Creating a reward system that exchanges fertilizer for produce taught me how tangible incentives can transform occasional behaviors into lasting habits.