What in the world is this “bundle” selling? 4 courses? How many hours instruction each? How did “Operating Systems” sneak into this bundle? Is the “companion book” included? Is it even available? What is the name of the courses (as I may already have bought one or more of the unnamed number of unnamed courses on one of the many instructional platforms available on the web)? Please make the companies (this one is “off site” for SOS) give enough information to understand just what is being bought. Thanks for all your great work on SOS. I’ve been a fan since the GAOTD times.