A Python3 cron job wrapper that wraps jobs and enables better error reporting and command timeouts.
A basic, random team generator for tennis groups
Django app for managing multiple mass-mailing lists with both plaintext as well as HTML templates (and pluggable WYSIWYG editors for messages), images and a smart queueing system all right from the admin interface.
Django Comments Framework extension app with django-treebeard support, follow up notifications and email confirmations, as well as real-time comments using Firebase for notifications.
Integrate KaTex render into the Wagtail CMS Draftail editor.