Since this seems to be dead if you're still using this and need a way to run your app I have published an ng-packagr build for use with Angular 16 on npm: https://www.npmjs.com/package/@kamshak/angular2-busy.
This is a build of https://github.com/mtpultz/angular2-busy (thanks!) with minor patch to add a type to ModuleWithProviders
Since this seems to be dead if you're still using this and need a way to run your app I have published an ng-packagr build for use with Angular 16 on npm: https://www.npmjs.com/package/@kamshak/angular2-busy.
This is a build of https://github.com/mtpultz/angular2-busy (thanks!) with minor patch to add a type to ModuleWithProviders