Snail Speak
An iOS vocabulary app for focused English memorization, built around spaced review and practical retention.
Role: Solo product developer · iOS full stackSwiftUICore DataCloudKitAI
Product thinking · Engineering depth · Learning content
I build software from idea to release.
Tools for English and Japanese learners, built with product care.
Product-minded Full-Stack Developer · Web · iOS · AI · Content Systems
I turn language-learning ideas into usable products: clear interfaces, maintainable systems, AI-assisted workflows, and content that compounds over time.
⛩ Nihongo Learning
Understanding は and が
120+Grammar notes80+Study essays50+Useful phrases
A content system for collecting, reviewing, and publishing Japanese learning material over time.
Selected Work
View all projects
Vocheo
An AI-assisted listening and shadowing platform that helps learners practice with real video and guided feedback.
Role: Full-stack developer · AI integrationNext.jsAISupabaseTailwind
Nihongo Learning
A Japanese learning content site for structured grammar notes, vocabulary resources, and reusable study material.
Role: Solo developer · Content designAstroContent DesignCloudflare
English Sentence Thinking Models
My first book, explaining the underlying structure and logic of English sentences for Chinese-speaking learners.
Role: Author · Educational writingWritingLearning SystemsPublishing
How I Work
ProblemFind a real learning problem
→ ProductDefine the value and path
→ UXDesign a clear experience
→ SystemBuild a maintainable system
→ ReleaseShip and keep improving
Engineering Depth
14+Years
Engineering experience 3Apps
Independently shipped BroadStack
Languages, frameworks, and tools
Engineering experience 3Apps
Independently shipped BroadStack
Languages, frameworks, and tools
Full-stack engineering range
Web + iOS + Java + SwiftUI + Astro
Product Frontends
AstroNext.jsTailwindTypeScript
Mobile Apps
SwiftUIiOSCloudKitCore Data
Backend Systems
JavaSpring BootPostgreSQLREST APIs
Content & Delivery
CloudflareMarkdownSEOStatic Sites
