Composer/Packagist - PHP Dependency Manager - Lead Developer
Symfony2 - PHP Web Framework and component library - Core Team Member
Monolog - Logger for PHP - Lead Developer
PHP Console - A tiny PHP testbed for trying snippets quickly in your browser
Slippy - HTML/JS Presentation Tool
Alice - Expressive fixtures generator
You can also check out my GitHub repositories or Packagist profile page for more.
If you would like to say thank you for the thousands of hours spent working on all this for free, I have an Amazon Wishlist.