For Next.js Commerce alternatives, separate frontend experience from the commerce backend. A fast page is not enough if checkout or inventory is inconsistent.
- Render a catalog with variants, search, and real pricing rules.
- Test cart persistence, promotions, checkout, payment, and order confirmation.
- Inspect caching and revalidation when stock or price changes.
- Measure mobile performance, accessibility, SEO, and error behavior.
- Map provider adapters, deployment costs, and custom code migration.
Decide which system owns catalog, stock, and orders. Rehearse a changed price during checkout to expose stale-data risks.
Akousa