Really Simple Plugins is a platform by Rogier Lankhorst, developer of Really Simple SSL
I work together with several developers to build cool plugins that will make life easier.
We like to build add-ons for our favourite plugins, like Easy Digital Downloads, Ultimate Member, and WP Job Manager. Starting with two add-ons for Ultimate Member, we’ve created the UM tagging, EDD Moneybird, Guest Post Publisher (free) and UM New Members, and are continually extending the number of add-ons.
Like with Really Simple SSL, the main focus of these plugins is the user: easy user interface, great support, quick install.