I'm writing my first book now. It's a novel aimed at teenagers and young adults, in a technical format similar to "The Phoenix Project" by Gene Kim et al., if you're familiar with it. It explores FOSS, non-proprietary file formats, digital preservation, cryptography, and the concept of freedom as a whole. I resonate with the author of the article who discusses motivation to write and the "existential crisis" that comes and goes almost every day. I've been fighting those negative feelings by adopting the mindset that I'm writing the book for myself. It's a book I've always wanted to read, which I can then lend to my teenage children so they can read it as well. Everything else (commercially speaking) will be a nice consequence of this endeavor.