Phase 4 — Production & Depth · Lesson 46 · 60 XP
Capstone: deployed product and portfolio write-up
The course finale: pick one of your Phase 2-4 projects (or a new idea combining what you've learned) and ship it as a real, deployed product with actual users — even ten of them is enough to prove it holds up outside your own testing.
A strong write-up states your actual cost per request, your actual latency, what broke along the way, and what you'd do differently. This is the third portfolio project from the original roadmap — the other two, the RAG app and the tool-using agent, are Lessons 39 and 40.
Exercise
Deploy a complete AI product for at least a handful of real users. Write a README covering cost per request, latency, and what you learned — the third and final portfolio piece, alongside your Lesson 39 and 40 projects.
Check yourself
1. Why does a strong capstone write-up need to state cost per request, not just "it works"?
2. Which two earlier lessons' projects does this capstone explicitly sit alongside as the roadmap's three portfolio pieces?
Streaming UIs with the Vercel AI SDK
Answer the check-yourself questions to unlock this