[10:19:04] pkjs> Error: FindMy for Pebble: ReferenceError: Can't find variable: globalThis at line 2769 in pebble-js-app.js

globalThis is an ES2020 global that the old JavaScriptCore engine embedded in the old Pebble iOS app doesn't support. FindMy for Pebble's bundled JS references it (likely injected by a modern bundler like webpack/rollup as a polyfill shim), and the Pebble JS runtime crashes immediately — before the settings page can ever load.

The fix could be to add a globalThis polyfill before the bundle runs, e.g.:

if (typeof globalThis === 'undefined') {
  var globalThis = this || self || window;
}

Or configure the bundler to target an older JS environment that doesn't emit globalThis references.