Requirements for plate generator

There are dedicated plate generators out there:
- https://kbplate.ai03.com/ (https://github.com/ai03-2725/yet-another-keyboard-builder?tab=readme-ov-file)
- http://builder.swillkb.com/ ~~(closed source?)~~ (https://github.com/swill/kad)
- https://plate.keeb.io/ (https://github.com/keebio/kb-plategen)

kle-ng already supports basic PCB project generation (since v0.22.0) and it would be cool to support plate generation as well
but I wanted to gather user feedback first:
- what are a weak points of above projects?
- what would kle-ng plate generator have to do, to improve on existing solutions?

I actually never used any of plate generators myself.