<![CDATA[Building FDE Demo Apps and POCs - Tools and Frameworks]]>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

  1. Solve their problem, not showcase your tech
  2. Build in 2 days, present on day 3
  3. Leave rough edges - feels more real
  4. Make it interactive
  5. Always end with path to production

What is your go-to demo stack? Share below.

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