This is a nice deep dive in how accessibility and copy-writing are so intertwined. The utility of the proposals is probably quite dependent on how vital accessibility is to what you're building, but they're still interesting to think about.
CSS resets are becoming less needed these days, but what's good about Josh's is not necessarily what he's including, rather how he explains his decision for each choice. There's some nice tidbits to about CSS to pick up here.
Service-level objectives (SLOs) and over platform-level metrics can be a little daunting when first encountering them. This article gives a good visual introduction to what they are and how and why we can use alerts to maintain our SLOs.
This is just a great guide to how to use cache headers in modern web development.
Another article from Simon Hearne. This time he's talking about the concept of "abandonment" in web performance, i.e. when a user leaves a page before it's even finished loading. I hope Google makes progress in measuring this as it's not an easy factor to gauge at the moment for web developers.