This is a very rudimentary epub converter, but it will probably get things done.
Usage:
python brec.py myepubbook.epub
The result would be a "bionic_myepubbook.epub" file and a "myepubbook.epub_zip" folder (this one you can delete or explore)
Bionic Reading allegedly helps you read faster and read in general (or at all) if you have some type of struggles in this field.
Probably a less "rudimentary" new version, but it remains to be seen.
Usage:
pytnon brec_v2.py input.epub output.epub