Name your simulator

mobai-ci sim boot --name sim1 names the simulator it creates, so a test can say --device sim1 instead of a UDID:

mobai-ci sim boot --name sim1 --slim-only widgets
mobai-ci test flows --device sim1

A shut-down leftover of that name from an earlier run is removed first.

sim boot returns once the simulator is up

A plain sim boot now waits for the boot to complete before returning, the same way a slim boot already did. mobai-ci test no longer needs --wait-device after it.

Recommended for CI: --slim-only widgets

A fresh simulator's first boot launches every widget and wallpaper extension iOS ships, and on a small runner that keeps the test runner and your app waiting for minutes. --slim-only widgets (or sim-slim-only: widgets in the GitHub Action) turns off just those services; everything else stays as Apple ships it.