How to add custom config values and use them in ghost themes

Is it possible to add custom config values in ghost themes, is there any alternative if this is not possible, for example I want to add configurable social links in my theme file.


Unfortunately only the posts_per_page property is passed from the config.

An alternative I can think of is creating a json object and generating(changing) the content with javascript.

  let config = {
    facebook: 'link', 
    twitter: 'link', 
    youtube: 'link'

You can later use these properties to change the href attributes of your social links or generate them with js.