“Scene” reference with merging non puzzles scene into a puzzles scene?

Hi
So i want to bring a project i have customized from an example JS file (clipping planes)
into a blender-based puzzles project.
thing is, I need to know what the blender gltf “scene” is and how to reference it.
i’d give it a name, but i don’t know where to look.
sceneURL in myApp.js??

it’s like what comes first the chicken or the egg?

i’ve got the scene = new scene from the example, but i don’t want 2 scenes i want the example code fully in a new blender puzzles project.

tried bringing it all into the exec text window, just need that scene reference i believe.