Why Open Source?
at CascadiaPHP 2019
PSR-14: A major PHP Event
at Dutch PHP Conference 2019
Software Management Lessons from the 1960s
Free Software: It's not about the license
at PHP Yorkshire 2019
Building a cloud-friendly application
The container is a lie!
at Dutch PHP Conference 2018
The Container is a Lie!
at Longhorn PHP 2018
Containers are a pile of lies!
at SunshinePHP 2018
Drupal 8: The Crash Course
at SunshinePHP 2015
Open Source, PHP, and PIE
at SunshinePHP 2014
Functional PHP
at SunshinePHP 2013