The Ghost Features page says:
Ghost has the rich editor which every writer wants, but under the hood it delivers far more power than you would expect. All content is stored in a standardised JSON-based document storage format called MobileDoc, which includes support for extensible rich media objects called Cards.
I am intrigued by the phrase “extensible rich media objects” and would like to better understand what Cards are capable of.
Is it possible, as a developer, to create my own custom cards and have them appear on a site hosted by Ghost Pro?
If not, is there a straightforward way of doing this if I am instead self hosting Ghost?
If such custom Card formats already exist, can I find examples somewhere that I can try out on my own site? How do I add existing custom Card types to my site?
I have already searched the internet and this forum for various combinations of ghost, mobiledoc, and cards, but I am still unable to answer the above questions. I have already found https://github.com/bustle/mobiledoc-kit, but it is unclear to me how I would go about integrating a new “rich” form of content into a Ghost site once I have developed it.