Writing System Software (2018) [video]
For those of you that are seasoned, whether you're deeply-familiar with C or not, I'd recommend Antirez's walk-throughs of Redis (of which the linked video is the first).Watching highly-effective programmers navigate, explain, and modify code can be a career-changing experience.If you're not working in a place where these kinds of programmers accrue, you might never get the experience.If you're reading this, antirez: thank you for making these, they're really special.