Plan for issue #10. CSS-only: viewport meta tag on every page plus a @media (max-width: 640px) breakpoint on the three desktop-width pages. Desktop (>=900px) render stays byte-identical.
Eleven tasks: profiles.d/ scaffolding + run.sh helpers + dispatch rewire, BuildConfig PROFILE_NAME / IS_DEV_PROFILE + manifest appLabel placeholder, optional DevBadge composable, and a full smoke-test matrix. External prereqs V1-V3 (minerva users.toml plaintext keys, Krey user, ADB serials) called out before the code path. refs #3
Brummel