It is impossible to do anything substantial in Scratch because it does not have text-based representation, and so cannot be comprehended by programming tools w

It is impossible to do anything substantial in Scratch because it does not have text-based representation, and so cannot be comprehended by programming tools which are critical to modern programming (or even just programmers). If it had a comprehensible ETL language, it might be possible to use for significant engineering, but the current export format is just a JSON morass, worst in some ways than byte code. As usual with ETL hacking of a primarily graphical representation, there could be significant issues where the VUI is unable to represent changes made "behind its back"...all of which is to say, forget it.