I have made available the #LuaLaTeX style used in my books, including ‘Form & Number: A History of Mathematical Beauty’ [https://archive.org/details/cain_formandnumber_ebook_large], after several people emailed me to express an interest. The style (called "minos") is available here: https://codeberg.org/ajcain/minos
The style was written for my own use, and so the documentation is basic and the functionality follows precisely my own needs. I am not going to submit it to CTAN. It is probably more useful as a source of ideas and experimentation than as a style for anyone else.
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