Hi Jazzy, thx for your comment :)
I wish I could add a mac version but this is diificult because I need to build it from a mac, and I don't have access to one.
I have an idea that may help for that, but I'll need some time before I can do it.
Hi @Jazzy, I released a mac version of the Herobook engine a week ago. Feel free to try it and give feedback if you want :D