While this article has steps in the right direction, it's a lot of "use this thing". I operate a simple Flask/PostgreSQL webapp for CS Education through the luxury of my university. If/When I graduate from my program, what are the aspects I can do to minimize my costs for hosting the app? Of course I'll look for best approaches but why does that need to be forbidden knowledge known to a select few?

Its an aside, but the mentality of "let them figure it out" is a major issue in education. Foundational knowledge should be easy to acquire so I can worry about higher level thinking issues. Literally spending hours trying to figure out how to set things up through hours of Googling doesn't really help that, nor does it promote the "figuring it out" people think it does - its just stumbling upon the right set of commands that let me move past this particular hurdle.

From the devops perspective, what about telling someone how to set up their own server to do/minimize X is so taxing?