Connect i18next to your Goodspeed app

Locale detection and JSON translation files generated per locale. lib/i18n.ts wires i18next with expo-localization for automatic language switching. Goodspeed wires i18next into every app that needs it at generation time, so you start with a working integration, not a blank config and a documentation tab.

Generate an app with i18next See how it works

WHAT GETS WIRED IN

Built into every i18next build

Every app Goodspeed generates with i18next includes these wired integrations from the first build. No manual setup required.

Item	Description	Strength
getLocales() from expo-localization detects the device's preferred language and matches it against gasConfig.features.i18n.locales	getLocales() from expo-localization detects the device's preferred language and matches it against gasConfig.features.i18n.locales	01
Unrecognized locales fall back to gasConfig.features.i18n.defaultLocale instead of crashing	Unrecognized locales fall back to gasConfig.features.i18n.defaultLocale instead of crashing	02
DevAgent generates locales/en.json and one file per declared locale with matching key sets	DevAgent generates locales/en.json and one file per declared locale with matching key sets	03
i18next.init skipped entirely when gasConfig.features.i18n.enabled is false, keeping single-locale apps lightweight	i18next.init skipped entirely when gasConfig.features.i18n.enabled is false, keeping single-locale apps lightweight	04
.github/workflows/i18n.yml checks translation completeness on PRs, failing if any declared locale is missing a key	.github/workflows/i18n.yml checks translation completeness on PRs, failing if any declared locale is missing a key	05

Source: the Goodspeed app foundation · i18n

REAL GENERATED CODE

A snippet from a i18next integration the pipeline ships

This pattern is lifted from the engineered plumbing that ships inside every Goodspeed app. The studio generates i18next integration code like this for every app that includes it, not a placeholder you have to fill in yourself.

Locale detection

// lib/i18n.ts
function getDeviceLocale(): string {
  try {
    const locales = getLocales();
    const deviceLang = locales[0]?.languageCode
      ?? i18nConfig.defaultLocale;
    if (i18nConfig.locales.includes(deviceLang)) {
      return deviceLang;
    }
    return i18nConfig.defaultLocale;
  } catch {
    return i18nConfig.defaultLocale;
  }
}

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APPS THAT USE I18NEXT

Where this integration ships

These app types include i18next as part of the generated stack. Each link goes to a full spec page with capabilities, scored ideas, and a pipeline walkthrough.

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