Why not? If you are willing to take care of its content of the armbian.com/download page. Prepare a PR to the build script, then I will sent you access credentials for the page management and you can do all things on your own - add images, select which images are available, ... (this is enough). Manual how to add a new device is written when you log-in to there.
Only images are rebuild manually - you have to notify me here and they will be added ASAP.