WP Health Check
A PHP composer package that creates a simple WordPress health check endpoint. Fully controlled by you, based on Apache or Nginx rewrite rules.
Packagist
WP Tally
An open-source fork plugin for counting the number of downloads of a user’s WordPress.org plugins and themes.
WP Upgrade Task Runner
Register custom migration tasks that can be triggered from a dashboard in the admin and run via AJAX.
WordPress Settings API
A PHP class abstraction that removes all the headaches of the WordPress’ settings API and builds a nice options panel on the fly.