If you think the educational development career path is where you want to go, then I think you should take a typical job description from a university hiring announcement and use the duty description as a template to start looking at how you can add skills that support each of the bullet comments.
The first step is to find a fairly standardized job description for a curriculum developer skill set that every college must have in order to meet the needs of the digital age.
Colleges and universities realize that the genie of technology and digital learning cannot be put back in the bottle.
In the same way that modern cars are too complex for people to fix on their own and need a skilled technician, colleges and professors will always be the skills of educational mission and translate their knowledge into teachable materials in multiple media.
I think you can quickly develop all the skills required to be able to blend the art and science education technology. But only you can decide if this is an area that you are passionate about and are willing to commit to.
If you are, then I think you already know what you need to start doing, which is to begin acquiring the specific skills that employers are looking for in which can be documented without question. In this technical career field, examples of your performance speak volumes.
The good news for you is that you have many people available to use as a resource to help you in this specific area since more and more people are choosing this career path. A good mentor will be able to give you a hint and a push every once in a while.
A good book that can help you appreciate the technical challenges and rewards of this career field is entitled Understanding by Design, written by Grant Wiggins and Jay McTighe