It’s pretty much the same code, just parts have moved around a bit. Using the diff I posted above, I was able to adopt using the new __start__.js file.
The only thing that is really different is that you no longer need the engine patch as long as you set the fill mode in the PlayCanvas project to ‘NONE’
I’ve include the ZIP here to help:
Starter Kit_ Model Viewer.zip (4.3 MB)