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GuideAI DevelopmentJuly 14, 2026

Which Tool for Which Job: The 2026 Solo-Founder Build Stack

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A guide to splitting the solo-founder build stack between Claude Code and Greta: when to engineer it, when to ship it fast, and the shared Supabase, Stripe, and GitHub rails that make nothing throwaway.

What's inside
  • The own-it vs. ship-it split that decides which engine to use
  • When Claude Code is right: core product, long-term code, correctness
  • When Greta is right: dashboards, MVPs, client tools, this week
  • The shared rails — Supabase, Stripe, GitHub — that make nothing throwaway
  • The graduation path: Greta ships the draft, Claude Code hardens the keeper

Which Tool for Which Job

The 2026 solo-founder build stack comes down to two engines: Claude Code for what you'll own and maintain, Greta for what you need shipped fast. It's not either-or — it's knowing which engine the job needs.

Own It vs. Ship It

Claude Code is for the parts that must be exactly right — core product, code you'll maintain for years. Greta is for the parts you just need live this week: internal dashboards, MVP shells, client tools. And Greta's "first draft" isn't a mockup — it's a real working app with a Supabase backend, Stripe payments, and code synced to GitHub.

The Graduation Path

Both engines sit on the same rails — Supabase, Stripe, GitHub — so nothing is throwaway. Greta ships the draft; if it proves out, a dev hardens it in Claude Code later, because it was real code the whole time.

The full breakdown is in the PDF.

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