H-Space

My Projects. One Space.

H-Space is Hen Heang's personal software ecosystem and engineering portfolio. It connects daily planning, learning, knowledge, and finance while keeping each application's technical decisions and source code easy to review.

Projects

• apps/web — Next.js 16 H-Space application, dashboard, Hengo Learning, and Supabase/AI route integration
• apps/luyra — separately deployable Next.js Finance application, using Supabase Auth and Neon Postgres
• docs — development and workflow guidance

The application is a client-side SPA over Supabase plus a focused set of authenticated Next.js AI route handlers. Hengo's existing Korean-learning features remain available as Hengo Learning; its routes, data, APIs, and stored user information are preserved. There is no separate backend service to run.

Architecture at a glance

• Next.js 16 App Router, React 19, TypeScript, and Tailwind CSS 4
• Supabase authentication and Postgres data protected by Row Level Security
• TanStack Query for client-side server state
• Vercel AI SDK and OpenAI behind authenticated Next.js route handlers
• Vitest and Playwright for automated verification

Connected applications

• Hengo Learning — Korean learning, workplace practice, interview prep, spaced repetition, and authenticated AI coaching
• Luyra — the dedicated Finance application, linked from My Apps and the H-Space dashboard; its existing standalone deployment remains active
• H-Phsar Commerce — Next.js and Spring Boot B2B marketplace for buyers, suppliers, and administrators
• Developer Portfolio — recruiter-focused project case studies, backend learning lab, resume views, and a retrieval-grounded AI assistant

Quick start

pnpm install
pnpm dev

pnpm dev starts the web app on port 3000. See docs/DEVELOPMENT.md for environment variables, platform-specific commands, tests, and deployment settings.

Root commands

pnpm dev             # Next.js dev server
pnpm dev:web         # same, explicit
pnpm lint            # frontend lint
pnpm test            # frontend tests
pnpm build           # frontend build
pnpm test:web
pnpm build:web

Further documentation:

• Web README
• Hengo Learning product direction
• Repository history notes
• Notion MCP workflow
• H-Space + Luyra integration and migration