package.json

"dependencies": {
    "ng-devices": "file:<path to your archive>/ng-devices-0.0.1.tgz"
}

app.module.ts

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    NgDeviceModule
  ],
  providers: [
  ],
  bootstrap: [AppComponent]
})
export class AppModule {}

app.component.ts

...
import {Device} from 'ng-devices';
...

@Component({
  selector: 'app-root',
  template: `
  
    <ng-device [device]="selectedDevice" [landscape]="false">
        <!-- Your content -->
        <h1>Hello World</h1>
    </ng-device>

  `
})
export class AppComponent implements OnInit {

  public selectedDevice: Device = Device.APPLE_MACBOOK_PRO;

  ...
}

<ng-device></ng-device>