Skip to content
Contact
WritingTutorial

Migrating a Next app to TanStack Start: field notes

Marian Baicuianu
AI Systems Architect · Entrepreneur
May 4, 20261 min read

A migration is not a rewrite. Cut a vertical slice, run both stacks in parallel behind a reverse proxy, then walk the tree route by route.

Route parity first, data second

Get every URL rendering something plausible before you touch data loading. It keeps the team unblocked and makes each subsequent PR reviewable.

#tanstack#react#migration#tutorial
Marian Baicuianu
AI Systems Architect · Entrepreneur

Building intelligent systems for teams that ship. Writing at the intersection of AI, automation, and craft.

Keep reading
ResearchProduction AI

RAG in production: what breaks past the demo

Most RAG systems collapse under three forces: query drift, retrieval noise, and untracked context. A field-tested blueprint for keeping them honest.

Marian BaicuianuJul 8, 20263 min
GuideProduction AI

The 800 ms voice agent: a latency budget you can actually meet

Voice AI lives or dies on perceived latency. A concrete budget across VAD, ASR, LLM, TTS, and network — and how to buy back time.

Marian BaicuianuJun 24, 20261 min
Automation NoteThe Automation Atlas

n8n vs code: when a workflow should graduate to a service

Six signals that your automation has outgrown the canvas — and a migration path that does not throw away what you built.

Marian BaicuianuJun 11, 20261 min