Here's a video of the results: https://www.youtube.com/watch?v=vAx8UfuJd9Y
The biggest contributions I've made to KCC are:
*added modern macOS support, removed homebrew requirement, sped up startup, etc...
*ported code to run on native Apple silicon M1 chip and later for a 2x speed boost
*fix Kindle Scribe image quality and conversion speed
*automatically crop images to fill the screen if the image would normally leave a few pixels of margin.
*page order and comicrack fixes, and tons of other small bugs
*created a legacy Windows 7 build with 200 downloads…
Enjoy using KCC and let me know if you have any questions!