I did some work to make an hpub export script. I originally made it on the request of a software maker that uses .hpubs, but there’s more to do in that partnership. I’m not sure how compatible it is with other readers. Thus it is not published/in beta, but you’re welcome to try it out. Here are the steps:
Download it from:
Place it inside this folder:
- In the terminal, run this command:
chmod 755 ~/Library/Application Scripts/com.tumult.Hype2/HPUB.hype-export.py
Let me know how it works for you.