Start your first SaaS with eight clear requirements

What should you define before choosing a stack?

Before choosing a name or generating illustrations, write the user's input, the result they need, and the step where they decide it is useful. This keeps the starter's example workflow from becoming an accidental product specification.

What eight requirements does Codex need?

List audience, core workflow, input/output, model capability, billing, API/Skill access, brand, and domain/support/data policy. Leave private keys out. Where a business fact is unknown, record it as pending instead of inventing it.

What happens after the generator runs?

Use the product-generation guide. The output is an independent project, not a promise that external providers or new custom logic are already working. Run it locally, check the product configuration and replace initial end-user content with actual steps.

What should you do next?

Start the template locally, then use the brief to generate the smallest workflow you can verify.