Looking for an easy way to add your Magento_AdminNotifications? Here it is. The readme is already in markdown and I think readable. So have a look. I pushed the extension to github [https://github.com/ikonoshirt/CustomAdminNotifications] . Ikonoshirt_CustomAdminNotifications As I wrote in my blog [https://blog.fabian-blechschmidt.de/

How this feature works and what we should do with it Mage_Adminnotification There is this tiny module, which goes us on our nerves all the time we install a new magento. It is called Mage_Adminnotification. If you don't know, what I'm talking about, maybe this picture will help