I wanna build the kind of complete picture that experienced engineers have not just theory, but what problem a project actually solved, how it was built, what broke, and what impact it had. (Real here means something that's built at production level to solve a real problem) Specifically looking for something like a content narrated by the engineer who built it or at least shared everything about that project somewhere. One specific project at a real company think "I was on the team, here's what we tried, here's what failed, here's what shipped." (or) "here's the problem, this is the core architecture, these are the tools we used, this is how it was built,.." Anyone know other good sources (YouTube channels, videos,..) with this kind of first-person, project-level detail?