How to configure Arc Ecto in umbrella project

I have a question regarding arc_ecto in umbrella project.

My project structure is
Logic - (context, schemas)
admin - (admin panel, phoenix project)
front - (my website, phoenix project)

I want to use arc_ecto in logic app, which will upload image to amazon s3 and save paths to database, but when i upload from admin app, or front app, the upload paths are within those app. I tried File.cp file path to logic, but got problem with permission. Is there a clean way to do this?