The Language Agnostic, All-Purpose, Incredible, Makefile

This post is a great introduction to make, one of the most versatile unix programmer tools, that has lost favor in recent years. I personally use make in some of my personal projects, but have yet to take advantage of it in large Ruby projects at work.

How containers work: overlayfs

Julia Evans explains how overlayfs – a union filesystem – powers containers and makes it much more efficient to build images from other images. Great read.