Hello.
I am trying to make a Scratch emulator in Lua, however I cannot understand the JSON file in the SB3 format. I am wondering if someone has made or can make a documentation on the JSON file and how Scratch uses it, and if so, I want you to link it here. Thanks.

https://en.scratch-wiki.info/wiki/Scratch_File_Format is a good reference. https://github.com/scratchfoundation/scratch-parser/blob/master/lib/sb3_schema.json and https://github.com/scratchfoundation/scratch-parser/blob/master/lib/sb3_definitions.json provide the same information but in a slightly less readable manner.