[theschmed]

https://once.com/writebook#exporting

“Can I export Kindle, PDF, ePUB, or other formats from Writebook? Not currently, no. Writebook purely publishes web-based books. We may add other export formats down the road.”

This would, indeed, be a very useful feature, along with having a webview optimized for printing on paper.

[imroot]

Check out Softcover: https://www.softcover.io/ -- open source (no license needed), ruby based, and supports LaTeX and exporting to other formats.

I've been using Softcover to publish my runbooks for years.