Normal authors: release book to the public early in the week, with much fanfare.
Me, late Friday afternoon, from a dark alley: "psst! Hey, you! Yeah, you! #sysadmin! Buddy! You ever wanted to Run Your Own Mail Server?" #ryoms
https://www.tiltedwindmillpress.com/product/ryoms-ebook/
(boosts appreciated! :flan_beg: )