Building FDE Demo Apps and POCs - Tools and Frameworks
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The FDE Demo Toolkit
Frontend
- Streamlit - Data-heavy demos, pure Python
- Gradio - AI/ML model demos, minutes to build
- Retool - Internal tools and CRUD apps
- Next.js + shadcn/ui - Production-quality demos
Backend
- FastAPI - Quick APIs with auto-docs
- DuckDB - Query CSV/Parquet/JSON with SQL instantly
- Jupyter - Exploratory analysis with clients
AI/ML Stack
- LangChain / LlamaIndex for RAG
- ChromaDB / pgvector for vectors
- Claude / GPT API as backbone
- Streamlit or Gradio as UI
Demo Mindset
- Solve their problem, not showcase your tech
- Build in 2 days, present on day 3
- Leave rough edges - feels more real
- Make it interactive
- Always end with path to production
What is your go-to demo stack? Share below.
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