Change Details

This diff is essentially copy/paste of `native/root-context.js` (which is why I made it a separate diff) --- Depends on D5498

Context: https://linear.app/comm/issue/ENG-2134/have-a-flag-that-indicates-whether-the-build-is-a-staff-release This diff is essentially copy/paste of `native/root-context.js` (which is why I made it a separate diff) --- Depends on D5498

Context: https://linear.app/comm/issue/ENG-2134/have-a-flag-that-indicates-whether-the-build-is-a-staff-release This diff is essentially copy/paste of `native/root-context.js` (which is why I made it a separate diff) --- Depends on D5498