I love building software these days. The number of external systems you can mix in, often with no more effort than a single click or line of declarative configuration, is nothing short of amazing. Here you’ll find quick write-ups on some of the tools and vendors that I use on a regular basis to get the job done. These are not exhaustive, and not even necessarily all following good practices, but should give you an idea of what they’re for and cover the basics of how to start using them.