How to create a “Theme Switcher” on the Frontend like at the Marketplace to easily showcase different Themes for Ghost on a Blog?
At the Marketplace, if you choose by “Price” and then “Free” after that click “Preview” on any of the shown Themes it open up something like https://massively.ghost.io/ for Example!
It looks to me this Preview is either a whole Independent Ghost Instance or something like a “Switch” to change the Theme.
Is there an easy Way to do this Function or is it more difficult to do, like hacking Functions of the Core of Ghost for it?!
Maybe there is Someone who has figured out a way to do this and willingly to share.