I have published 2 open source books by using Markdown. Didn't have a publisher to deal with Wasted 3months of my time with Apress who really wanted to publis

I have published 2 open source books by using Markdown. Didn't have a publisher to deal with Wasted 3months of my time with Apress who really wanted to publish my python book through them and then backed out after 3 months saying "OMG your book is similar to some of our books" Ans their choice of formatting was strictly Word and they'd even given a word file template and I actually had liked that template!! On another unrelated note, the pay they were going to give me was low. My Go book earned me much more than they were going to pay me upfront+royalty over 5yrs within 5yrs.