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Sauci/apps/mobile/certs
jjbruntonandClaude Fable 5 f4db567267 feat(mobile): wire expo-updates to the self-hosted XPREM OTA server
Install expo-updates and the eoas CLI, and configure the client against
https://ota.apps.jbrunton.co.uk.

app.json stays the static source of truth for version, buildNumber, and
versionCode, which EAS rewrites during a release build. A new app.config.js
spreads it and layers on the updates block, because XPREM selects a release
channel from a build-time request header and that value differs per EAS
build profile.

- updates.url points at the XPREM manifest endpoint, /manifest
- runtimeVersion uses the appVersion policy, so the runtime version is the
  store-visible expo.version and a native change requires a store build
- expo-channel-name comes from RELEASE_CHANNEL, set per EAS build profile:
  development, staging (preview profile), and production
- expo-app-id and an empty xprem-branch header are declared at build time,
  since expo-updates only sends headers that existed when the build was made
- code signing uses keyid main and rsa-v1_5-sha256 against a certificate at
  certs/certificate.pem, skipped when DISABLE_CODE_SIGNING is set so a dev
  client can run against the packager

The XPREM app id and the code-signing certificate are still placeholders
pending the update server deployment. The config throws a descriptive error
whenever RELEASE_CHANNEL is set while either is unresolved, so a
misconfigured build fails at config resolution rather than shipping a client
that can never validate a manifest.

The native projects are Expo CNG output and are left untouched: the
expo-updates config plugin embeds the real app id and certificate contents,
so they are regenerated as a reviewed source change once both values land.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-30 20:12:51 +01:00
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