Uses
The stack
The tools behind the projects, from model integration to deployment. Free-tier infrastructure keeps the hosting setup small and makes quotas, storage limits, and cold starts explicit design constraints.
The project hosting setup uses free tiers: Vercel Hobby for frontends, Hugging Face Spaces for containerised backends, Neon for Postgres, and GitHub Actions for CI. The $0 figure describes that hosting setup, not an unlimited workload budget. Provider quotas, cold starts, and model API usage remain operating constraints.
Languages & frameworks
- Python
- TypeScript
- FastAPI
- Next.js
- React
- Django
- Tailwind CSS
AI / ML
- LangGraph
- Gemini
- Multi-provider LLM fallback
- pgvector
- embedding retrieval
- XGBoost
- scikit-learn
Data & infrastructure
- PostgreSQL
- Neon
- Redis
- TimescaleDB
- SQLAlchemy
- Docker
Deploy & tooling
- Vercel
- Hugging Face Spaces
- GitHub Actions
- Playwright
- pytest
- ruff
- Shiki