Aligning columns in Emacs
I've been writing a lot of GraphQL resolvers in ruby at work recently, and frequently run into a situation where I have to align many columns of text by hand. I figured this isn't a very unique problem, and that there was probably already some code within Emacs to handle it.
As it turns out I was correct in my assumption. There's an excellent built-in package called align that takes care of just that.