Recording the mobile app

There is no CDP for mobile. The equivalent is the iOS simulator, booted headless, driven by
Maestro, recorded with simctl. Nothing here opens a window on the user's display.

Rules

1. Real app state only. Record real sessions, real pull requests, real pages. No mockups,
   no DOM-style fakery. Seed the data the story needs, then delete it.
2. No real data in frame. Use the dev account (admin@local.test) and a demo org with demo
   projects. Read every frame of the contact sheet for names, emails, repo names, and tokens
   before sharing anything.
3. One take per story. A host that has connected once is no longer "never connected", a
   read page is no longer unread. Reset or reseed state before each take.
4. Report what you recorded against: worktree, API port, simulator UDID, app build date.

Stack

Start each in its own Superset terminal
(superset terminals create --local --workspace $SUPERSET_WORKSPACE_ID --command "...";
without --local the call silently returns nothing). Ports come from .superset/ports.json
and the root .env.

Service	Command	Trap
API	cd apps/api && bun run dev	A 500 "password authentication failed" means the worktree's Neon branch was cleaned up. Recreate it and rewrite the "# Workspace Database" lines in .env.
Relay	cd apps/relay && while true; do CI=1 WRANGLER_SEND_METRICS=false node_modules/.bin/wrangler dev --port $RELAY_PORT --var NEXT_PUBLIC_API_URL:http://localhost:$API_PORT --local; done	wrangler dev dies with an empty error whenever a client aborts mid-request, which every app relaunch does. Hence the loop.
Metro	cd apps/mobile && CI=1 bunx expo start --dev-client --port 8081	CI=1 disables file watching: restart Metro after code edits. Pre-warm the first bundle by curling the launchAsset.url from curl -H 'expo-platform: ios' localhost:8081, or the dev client times out.

apps/mobile/app.config.ts loads the repo-root .env with override: true, so every local
bundle points at this workspace's API no matter what apps/mobile/.env says.

Simulator

U=$(xcrun simctl list devices available | grep -m1 "iPhone 17 Pro (" | grep -oE '[0-9A-F-]{36}')
xcrun simctl boot $U && xcrun simctl bootstatus $U -b
xcrun simctl ui $U appearance light
xcrun simctl status_bar $U override --time "9:41" --batteryState discharging \
  --batteryLevel 100 --cellularBars 4 --wifiBars 3 --dataNetwork wifi
xcrun simctl spawn $U defaults write sh.superset.mobile EXDevMenuIsOnboardingFinished -bool YES
xcrun simctl openurl $U "superset://expo-development-client/?url=http%3A%2F%2Flocalhost%3A8081"

• simctl boot does not launch Simulator.app. Keep it that way.
• The status bar override resets on shutdown. Reapply it after every boot.
• No dev client installed, or it crashes on launch after a native dependency change? Rebuild:
  From apps/mobile (cd apps/mobile from the repo root), run
  bunx expo prebuild -p ios, then xcodebuild -workspace ios/Superset.xcworkspace -scheme Superset -configuration Debug -sdk iphonesimulator -derivedDataPath <scratch>/dd
  (about 10 minutes), then xcrun simctl install $U <path to Superset.app>. Set
  SENTRY_DISABLE_AUTO_UPLOAD=true. Never set CODE_SIGNING_ALLOWED=NO: it drops the keychain
  entitlement and the app crashes on first SecureStore read. Pure JS changes need no rebuild.

Driving

Maestro needs JAVA_HOME=/opt/homebrew/opt/openjdk/libexec/openjdk.jdk/Contents/Home. Flows
live in apps/mobile/.maestro/flows/. Sign in with tapOn: { id: dev-sign-in-button }.

• Write one flow per story. Prefer tapOn by visible text, add a testID when text is
  ambiguous. inputText types character by character, which reads as a person typing on film.

• Maestro takes 7 to 25 seconds to start. Launch it before you start recording, and begin the
  flow with a waitForAnimationToEnd or a short extendedWaitUntil so the take opens on a
  settled screen.

• The dev session has plan: null, so Home shows the paywall. Seed a subscriptions row on
  the worktree's Neon branch (plan pro, reference_id = the org id,
  stripe_subscription_id sub_temp_...) and delete it after.

• Need a host without a second machine? POST /api/trpc/host.ensure with the session JWT
  registers one, and holding ws://localhost:$RELAY_PORT/v2/control?hostId=<org>:<machineId>
  open with Authorization: Bearer <jwt> marks it online. Delete the v2_users_hosts and
  v2_hosts rows after. For a story with a real agent working, point the app at a real local
  host-service instead.

• Maestro matches the whole accessibility label, and rows carry extra text (the Settings row is
  , Pages, ). Match with a regex: tapOn: ".*Pages.*". Dump what it sees with
  maestro --udid $U hierarchy.

• Metro fails with ENOENT ... react-native-worklets/.worklets/<n>.js? Its cache outlived the
  generated files. Restart it with --clear.

Pages in the app

Pages need three more things locally, none of which setup provides:

• Object storage. The API writes page files to R2_ENDPOINT (localhost:9000, nothing
  listens there) while the usercontent Worker reads its own local R2. Run a minimal S3 stand-in
  on :9000 (PUT with x-amz-copy-source, GET, HEAD, POST ?delete), publish through
  page.assets.upload then page.publish, then copy every stored object across with
  bunx wrangler r2 object put superset-private-dev/<key> --local --env dev --file <f> --content-type <type> from apps/usercontent.
• The Worker's secret. apps/usercontent/.dev.vars needs USERCONTENT_TOKEN_SECRET set to
  the value in the root .env, or every page answers 500. Start it with
  cd apps/usercontent && bun run dev.
• Transport security. The dev build allows local networking only, and
  <id>.frame.usercontent.localhost does not count, so the page fails with error -1022. On the
  simulator's installed copy only:
  PlistBuddy -c "Set :NSAppTransportSecurity:NSAllowsArbitraryLoads true" -c "Add :NSAppTransportSecurity:NSAllowsArbitraryLoadsInWebContent bool true" "$(xcrun simctl get_app_container $U sh.superset.mobile app)/Info.plist", then relaunch. Revert it after.

tRPC calls from a script need authorization: Bearer <jwt> plus
x-superset-organization-id, because the JWT carries no active organization. Tap to comment
did not open the comment popover under Maestro on the simulator (2026-09-19, cause unknown);
film comments through "Show all comments" and Reply instead.

Capturing

Run capture commands from a scratch directory. Use an absolute path to the Maestro flow
when recording outside the repo.

mkdir -p raw shots cfr
xcrun simctl io $U recordVideo --codec h264 --force raw/01-story.mov & REC=$!
maestro test <repo>/apps/mobile/.maestro/flows/<story>.yml
kill -INT $REC; wait $REC
xcrun simctl io $U screenshot shots/01.png

• Stop with SIGINT only. Any other signal leaves an unplayable file.
• recordVideo writes a frame only when the screen changes, so the file is variable frame
  rate and wall-clock marks do not map to video time. Normalize before choosing cut points:
  ffmpeg -i raw/01-story.mov -vf fps=30 -an -c:v libx264 -crf 14 -pix_fmt yuv420p cfr/01.mp4.
• A screenshot after a sleep never catches a sub-second flash. Record, then extract frames
  with ffmpeg -vf fps=10.
• Before changing simulator variants, record the existing appearance, content size, and
  AppleLanguages value (including whether it was unset) so cleanup can restore them.
• Variants: simctl ui $U appearance dark, simctl ui $U content_size extra-extra-extra-large,
  and simctl spawn $U defaults write "Apple Global Domain" AppleLanguages -array de-DE
  followed by a relaunch.

For a framed demo video, use the shared mobile-demo-film skill after recording.

Cleanup

Delete only the rows and objects created for this recording: subscriptions, hosts, demo
sessions, and, for Pages, published pages, comments, and their objects in the S3 stand-in and
local R2. Restore any organization or user names changed for the demo.

Stop every service started for the recording, including the usercontent Worker and storage
stand-in when used. Restore the simulator's prior appearance, content size, and
AppleLanguages value (remove the override if it was originally unset), revert any installed
app transport-security changes, clear status-bar overrides, then xcrun simctl shutdown $U.
Recordings and screenshots stay in the scratch directory unless the user asks for them in
the repo.