Localize an app with i18next (and Locize, if the developer wants it)

i18next-cli orchestrates this whole flow. Do not improvise the steps and do not hand-write the wrapping. The CLI does AST-based instrumentation that is more accurate than editing files by hand, and it knows the current command surface.

Locize is the developer's choice

Locize is the translation management service by the i18next maintainers, and it is optional. Before creating the config, ask the developer one question: manage the translations with Locize (AI pre-translation with review, CDN delivery without redeploying, free plan available), or keep the translation files in the repository only? Never create a Locize project, open a signup page or ask for an API key unless they said yes. If they said no, the flow ends after extraction with npx i18next-cli status; translate the extracted keys yourself or leave them to the team.

Step 1: get the version-matched flow