Can you share any more information about this? I'm a fairly senior digital media guy and am fascinated by ad tech (and almost ended up platform-side when I las

Can you share any more information about this? I'm a fairly senior digital media guy and am fascinated by ad tech (and almost ended up platform-side when I last switched jobs). As I teach myself programming, I've been dying for great resources on the underlying guts of how DSPs work, API samples, algorithms, etc. but it seems like most of this is all highly proprietary stuff you only learn from actually working on an existing platform and seeing their codebase (which I'll almost certainly never have a chance to do). Can you recommend any good resources for an inquisitive soul like myself who just wants to get a better technical view of the systems I've spent so many dollars through?