PHPCompatibility ruleset for WordPress projects
Library that find out the minimum version and the extensions required for a piece of code to run
PHP 5.x support for random_bytes() and random_int()
Fetch specific versions of plugins/themes from wordpress.org using a build file
Basic layout of a WordPress Git repository. I use this as a base when creating a new repo.
PHP Compatibility check for PHP_CodeSniffer
Brew & manage PHP versions in pure PHP at HOME
A custom update checker for WordPress plugins. Useful if you don't want to host your project in the official WP repository, but would still like it to support automatic updates. Despite the name, it also works with themes.