alt Hacker NewsI've been making ebooks for a nonprofit using typst and pandoc for a few years and it works quite well.
We generate a pdf ebook, a print version, and a epub. They each have little tweeks but are all defined conditionally using sys.input.
It was rough at first and I've had to open around a dozen or so issues for pandoc to improve things. Now it's pretty seamless.
I saw typst in my explorations but LaTeX had a few more of the controls I was looking for in print, and I really wanted a Standard Ebooks compliant EPUB. I might revisit at some time though. Thanks for bringing it up.