Symfony Courses
SymfonyCasts Question and Answer Day: March 27th, 2013
SymfonyCasts Starting in Symfony2: Course 1 (2.4+)
SymfonyCasts Starting in Symfony2: Course 2 (2.4+)
SymfonyCasts Starting in Symfony2: Course 3 (2.4+)
SymfonyCasts Symfony 7 Fundamentals: Services, Config & Environments
SymfonyCasts Symfony 6 Fundamentals: Services, Config & Environments
SymfonyCasts Design Patterns Episode 2
SymfonyCasts Symfony Essentials - Routes and Controllers
Gary Clarke via YouTube Drupal 10 from the Perspective of a Symfony 6 Core Contributor
Drupal Association via YouTube