This stuff is not easy 🤓😵‍💫

PWA setup + Drupal + Web Push with a lot of Javascript and PHP. Managing subscriptions and push notifications (queue them and handling them with workers). The push notifications stuff is handled by https://github.com/web-push-libs/web-push-php which interacts directly with vendor endpoints like Firefox, Google or Apple.

Putting this all together in https://git.drupalcode.org/project/pf_notifications