With zero budget, you can publish great learnings.
Not a book.
The concept is "10 minutes book".
You don't have to write a book-length piece of writing, so you can publish every week.
If your paid article sells, you get 92% of the revenue.
You can create an article that are like a book. And you can change the cover color and make the text larger.
There's more to tell you. Here are the details:
https://shortbook.life/about