While Jetpack and its Photon service are useful, it is not a solution fit for everyone, and may users and developers have reservations about integrating with the WordPress.com infrastructure. Will Norris takes the open source approach and has rolled his own self-hosted version of Photon, available on GitHub.
Tom Nowell has created a project called ComposerPress which analyses an existing WordPress install and creates a Composer .json file in your root directory. If you’ve already gotten to know the value of Composer, but need something to help bring your pre-Composer sites up to speed with your new workflow, then this is for you.
Justin Sternberg has written a nice and thorough post geared toward beginning programmers to cover common PHP methodologies. I definitely recommend reading this for those that may recognize certain techniques, but don’t really fully understand them. I love beginner tutorials like this.