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SaaS web app

SaaS Web App

The general-purpose subscription SaaS pattern — multi-tenant accounts, recurring billing, feature gating that actually holds — built with Claude, Codex, or Lovable.

Build prompts

7 prompts: keeping every customer's data properly separated from day one → real recurring subscriptions with Paystack → handling renewals, cancellations, and failed payments → features that actually stay locked to the right plan.

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Tools & resources

Recurring billing through Paystack, built-in data separation between customers, and automatic billing emails — the general-purpose pattern for any subscription product.

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Security checks

5 checks: can someone unlock a paid feature without paying, can one customer ever see another customer's data, does a payment notification ever get processed twice, does access get revoked properly when a subscription ends, can someone tamper with which plan they're billed for.

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