MyDNSConfig is a web-interface that allows to administrate/create/delete DNS records easily. All data is stored in a MySQL database, and this MySQL database is used by the MyDNS name server to retrieve the DNS records.
This appears to be a good start at a management interface for MyDNS / MyDNS-NG. Although the installation process isn't rocket science, it's also not as intuitive as it could be. Documentation for this project is very sparse. There does not appear to be any support channel, users list or forum that can be used to report issues or bugs. One important bug is that the client list is visible to all users. What this means is that if you have a zone that belongs to a client, that client can log in to manage it. However your entire client list will also become visible to all the clients, and it is possible for them to move a zone out of their control. To fix this problem, the client list drop-down should be removed from the zone management unless the user logged in is admin.