@Moxinilian and I have been experimenting with an improved scene format:

https://gist.github.com/Moxinilian/c45a1858eca7e918b5728ee5c117f649
https://gist.github.com/cart/3e77d6537e1a0979a69de5c6749b6bcb

The current scene format is workable, but it isn't yet ideal for manual scene composition because it is a flat list of unordered entities and it isn't particularly ergonomic. I also want to add nested scenes.