I’m writing an application that uses images stored in the same server
but outside of the application directory. I have tried many things but
nothing worked and found nothing really useful anywhere.
What can I do so the image_tag helper finds the images I need?
By default only the public directory is exposed to the web. If you
have content living outside of this place you to somehow expose it in
the web scope. You might make a symlink, or make a other virtual host
for the images and designate this with asset_host.