Tools

Curated open-source tools, what each one is, when to use it, and the workflows that put it to work.

• LangGraph
  AI orchestration

  An open-source framework for building stateful, multi-step AI agents as graphs — for when a single prompt isn't enough.

• Qdrant
  Vector search / AI

  An open-source vector database for similarity search — the memory layer behind RAG and 'search by meaning' features.

• Resend
  Email / Messaging

  Transactional email built for developers — send a welcome mail or receipt with one API call, and actually land in the inbox.

• Stripe
  Payments / Billing

  The payments layer for the internet — take cards, run subscriptions, and let a hosted page handle the scary parts (PCI, 3-D Secure, tax).

• Supabase
  Backend / Database

  An open-source Postgres database with auth, storage, and instant APIs. The fastest way to add a real backend to a project.