Ask HN: Is there an alternative to SoftCover.io for non-programmers?

Hi there, Hacker News. I'm writing a short new book. I was wondering if anyone knew about a product similar to SoftCover.io that could be used by non-programmers. Does anything like this exist? I think SoftCover looks great, but I'm not a programmer. I'd love to use something like it if it does exist. Thanks very much!