Why “OpenBSD Mastery: Filesystems” is not in Amazon’s Kindle store

I expect folks to ask this, so here’s a pre-emptive blog post.

You can get OpenBSD Mastery: Filesystems for Kindle direct from me at Tilted Windmill Press or at Gumroad. You can get a Kindle-friendly ebook from any number of other retailers, but while they’re all supposed to be DRM-free I can’t advise on prying the file out of another vendor’s ecosystem. The one place you cannot buy OMF for Kindle is Amazon’s Kindle bookstore.

TLDR: Amazon pays roughly 70% of retail price for books priced up to ...