Market and demand research procedures. Niche discovery, demand sizing, competitor/gap analysis, opportunity scoring, and pricing/positioning signals BEFORE building. Triggers on: market research, demand, niche, opportunity sizing, competitor analysis, TAM, positioning, pricing, go-to-market, validate idea, is there demand.
Choosing between app.json vs app.config.ts vs app.config.js, environment variables, variants, extra fields, plugin chain, and slug/scheme/bundle/version discipline. Triggers on app.json, app.config.ts, app.config.js, expo config, environment variable, .env, eas secret, variant, extra field, slug, scheme, bundle identifier, package name, version, build number, version code.
Writing Expo config plugins, withInfoPlist, withAndroidManifest, withDangerousMod, mod compose, plugin testing, and registration in app.config.ts. Triggers on config plugin, with-plugin, withInfoPlist, withAndroidManifest, withDangerousMod, withEntitlementsPlist, withGradleProperties, mod, native config, expo plugin, plugin test, app.config plugin.
Custom development builds with expo-dev-client, build profiles, a custom dev menu, runtime-version compatibility, and EAS Update integration. Triggers on expo-dev-client, dev client, custom dev build, development build, dev menu, expo go, runtime version, debug build, dev launcher, scan qr, dev server.
iOS and Android build profiles with EAS Build, credentials management, build cache, secrets, and monorepo support. Triggers on eas build, eas.json, build profile, credentials, provisioning profile, keystore, push certificate, service account, build cache, eas secret, monorepo, development build, preview build, production build.
App Store Connect and Google Play Console upload flow with EAS Submit, metadata, build-artifact selection, review notes, and phased release. Triggers on eas submit, app store connect, google play, asc api key, service account, metadata, screenshot, phased release, review notes, testflight, internal testing, production submit, release management.
Publishing OTA updates with EAS Update, channels, runtime versions, branch management, and rollback strategy. Triggers on eas update, ota, over-the-air, runtime version, channel, branch, rollback, embedded update, asset selection, expo-updates, hot update, partial release, release cohort.
Writing Swift/Kotlin native modules with the Expo Modules API, requireNativeModule, async functions, view modules, and the event-emitter pattern. Triggers on expo modules, native module, swift, kotlin, requireNativeModule, expo-module-scripts, expo.modules.json, view module, event emitter, native function, async function, native code, jsi.