I build AI-native product experiences and fintech frontends with TypeScript, React, React Native, and modern LLM tooling.
I care about software that gets used across production DeFi interfaces, mobile-first agent workflows, document intelligence pipelines, and open-source UI tools with real adoption.
| Project | What it shows | Stack |
|---|---|---|
| Osmosis Frontend | Production DeFi frontend for Osmosis Zone, one of the largest DEXs in the Cosmos ecosystem | TypeScript, React, Next.js, Tailwind, tRPC |
| Salchi | Mobile-optimized web GUI for monitoring and responding to coding-agent sessions from phone, tablet, or desktop | TypeScript, PWA, realtime UX, agent CLIs |
| Company Docs RAG Assistant | RAG app that ingests company docs, stores embeddings, and retrieves relevant chunks for grounded answers | Next.js, Supabase, pgvector, Gemini |
| Invoice Extractor | Focused document extraction workflow with schema validation and reviewable structured output | Next.js, Vercel AI SDK, Gemini, Zod |
- ⭐ nextjs-starter-blog - Next.js blog template with dark mode & MDX
- 🌃 react-toggle-dark-mode - Sleek animated dark mode toggle for React
- 💫 react-css-theme-switcher - Runtime CSS theme switching for React apps
- 🎞️ page-transition-tutorial - Framer Motion page transition examples
- ⚡ react-native-zerostyles - Theming for React Native. No native modules, no babel plugins, no extra dependencies. Just React.
- 🎨 antd-dark-mode - Dynamic Ant Design dark/light theme switching
- 🧪 testing-initializer - Bootstrapping testing utilities that encourage efficient testing practices
- AI orchestration interfaces that make coding agents usable away from the desk
- Document intelligence workflows with extraction, validation, retrieval, and review loops
- Fintech and DeFi product surfaces where reliability, trust, and speed matter
- React Native and PWA experiences that keep advanced workflows usable on mobile
- 🍋 nextjs-lemon-squeezy-skill - Next.js + Lemon Squeezy integration for AI-powered payment flows
- 📱 Osmosis - Built the React Native mobile app for Osmosis Zone
- 🧭 Polaris - Built cross-platform React Native experiences for the Polaris portal
- 🐶 Salchi - Designing agent workflows around phone-first check-ins, reconnection, and push-notification ergonomics
I write about React, animations, CSS, and web development at josefelix.dev.