This repo is more than deprecated. I've hardly pushed any notes here for the last year.
Since I've come back to surprising interest, there is a separate repo that I have just made public that has a bunch more notes on top of these and other concepts I've had to deal with in more recent years (think Deep Learning, Kubernetes etc).
That repo can be found here https://github.com/okeeffed/developer-notes
That repo also publishes notes on a CD pipeline to here https://docs.dennisokeeffe.com/
Follow me on Twitter for rancid dev chat and good times https://twitter.com/d_okeeffe