⚙️
Tech
- 嘉圓科技 JYTech
- 深圳市华思旭 (卡儿酷能源)
- Crystal Start Innovation Group
- 太古宙能源科技
- 守卫者智能科技
- 华拓明通出行科技
- Pear.us
Available for new collaborations
Build the future AI,
ship real-world products.
I'm Weijing Jay Lin — a San Francisco Bay Area business solution provider (known on GitHub as @dotku). I work with partners across media, tech, medical, supply chain, finance and more — and open-source what I build along the way.
- Public repos
- 865+
- GICS sectors
- 9 / 11
- Partner companies
- 30+
- Years building
- 13+
Partners & collaborations
Companies I build for and with
Long-term relationships across nine industries — from Bay Area startups to established enterprises in China, Canada and the U.S.
📺
Media
🏥
Medical
🚚
Supply Chain
- Tradin AI Inc
- JD.com (US)
- ZY International
- Alibaba (US)
- 徽商集团
💳
Finance
👟
Fashion · Food · Resources · Education
- Fashion 东莞市厚街昱晟鞋业
- Food 福赢国际供应链管理
- Nature 紫金矿业
- Edu Alum AI
Open source
Projects by GICS sector
865 public repos (forks marked 🔀) categorized using the Global Industry Classification Standard — the taxonomy MSCI and S&P use for global equity markets. Click any sector to jump into the detailed list.
💻
432
Information Technology
Software, IT services, hardware and semiconductors. AI, LLM tools, Next.js apps, devops.
Application SW · 431
Internet Infra · 15
Systems SW · 7
🛍️
48
Consumer Discretionary
Retail, apparel, restaurants, travel, education and consumer services.
Retail · 21
Services · 17
Apparel · 4
🏭
37
Industrials
Capital goods, transportation & logistics, commercial and professional services.
Prof. Services · 24
Capital Goods · 10
Transport · 2
📡
43
Communication Services
Media, entertainment, telecom, interactive media and social platforms.
Interactive · 23
Media · 10
Telecom · 2
💰
33
Financials
Fintech, crypto, payments, trading and accounting tools.
Fin. Services · 28
🩺
17
Health Care
Medical devices, telehealth, lab testing, clinics and wellness apps.
Equip. & Services · 13
Biotech · 1
⚡
5
Energy
Solar, portable power (Carku) and energy-infrastructure tooling.
🥤
1
Consumer Staples
Food & beverage demos.
🏠
1
Real Estate
SF Bay Area appraisal & property tools.
Featured
A few projects worth a closer look
video-to-text
Extract speech and visual content from videos into text — used in production.
sienovo-intl
International business portal built with Next.js and MDX.
crm-business-development-system
A lightweight CRM focused on business development and referrals.
hippa-free-chat
HIPAA-considerate chat demo for medical use cases.
bayarea-mcn-platform
Multi-Channel Network tooling for creators in the Bay Area.
you.com-mini-search
Next.js 15 + TypeScript search aggregator across multiple platforms.
Let's build something together
Working on a product idea, looking for a technical partner, or want to talk about AI in your industry? I'd love to hear from you.