Has anyone done this? I have been searching around for a solution. Just wondering if anyone here does it? I posted in the Sigil forum as that is what I primarily use. Apologies if it should go somewhere else.
I read this:
https://ebookflightdeck.com/handbook/media - Seems interesting.
Also I have never created an epub 3 file yet so it is a little daunting.
What is your process for this, if you have done it? Would be interesting to hear your thoughts. Thank you