Portfolio demo·Work sample by SyntheStudio. To commission similar work, email support@synthestudio.com.
Built on
A modern, edge-first stack
The same architectural choices brought to client work: streaming-first UX, typed server boundaries, RLS-secured Postgres, and a clean component system.
- TanStack Start (React 19) + Vite 7 on edge runtime
- Tailwind v4 + shadcn/ui with semantic design tokens
- Postgres + Row-Level Security · typed server functions
- Vercel AI SDK streaming · 8 models via AI Gateway
- Whisper STT + OpenAI TTS · Gemini OCR with confidence
- Cron tasks · API keys · usage metering with CSV/PDF export
Tech inventory
TanStack StartReact 19TypeScriptTailwind v4shadcn/uiVercel AI SDKPostgresRow-Level SecurityEdge FunctionsZodTanStack QueryMermaidKaTeXjsPDFWhisperGemini OCR
Compliance & isolation
- • Per-user RLS on every table
- • Signed-URL attachments · zero public buckets
- • Server-side rate limiting · 120 msg/hr per user
- • No secrets ever shipped to the client