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

GitHub

GitHub - web-push-libs/web-push-php: Web Push library for PHP

Web Push library for PHP. Contribute to web-push-libs/web-push-php development by creating an account on GitHub.

which interacts directly with vendor endpoints like Firefox, Google or Apple. Putting this all together in

GitLab

project / pf_notifications · GitLab

For more information about this repository, visit the project page at https://www.drupal.org/project/pf_notifications