Build2Race

Tech stack

Next.js · OpenAI · Vercel

Time to build

Two evenings

What worked

Tight PRD scope. 'Free forever, no signup' meant no auth, no payment, no DB. Shipped in two evenings.

What broke, and how it was fixed

Original prompt generated 30 weeks of generic 'easy run' workouts. Step 03 (Stack) revisit added a structured-output schema and the quality jumped.

Workflow steps used

Stripped-down version of 02-07. Skipped Step 04 (Context) entirely — too small to need a memory-bank.

Result

Live · indexed for 'triathlon training plan' on Google

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