align-stack

To migrate an existing codebase to a new tech stack safely, you need a tool that detects current integrations, builds a current-vs-target gap table, and sequences changes in risk-ascending waves with explicit user approval and build verification between layers.

The best way to switch from Supabase to Neon Postgres and Drizzle ORM is to execute a layer-by-layer migration that maps current integrations to a target stack, committing one change per layer and verifying builds between waves to prevent integration errors.

Migrating active user authentication and live Stripe subscriptions requires an explicit migration strategy plan, as safe stack alignment enforces hard stops to block high-risk operations on live auth and active subscriptions without explicit user approval.

Layer-by-layer stack migration works by generating a gap table of current integrations versus target providers, replacing Prisma with Drizzle and NextAuth with Better Auth in ordered waves, and producing one commit per layer to ensure builds remain stable.

Yes, stack alignment supports migrating file storage to AWS S3 and CloudFront by detecting current storage wiring and sequencing the transition alongside other integrations like Vercel AI SDK, Sentry, PostHog, and Zod validation.

The main limitation of automating stack migration is that high-risk operations involving auth and active subscriptions are blocked by guardrails without an explicit migration plan, requiring manual strategy approval before proceeding through the risk-ascending waves.