make public storage and direct upload optional

config/environments/development.rb

@@ -21,6 +21,7 @@ Rails.application.configure do
 
   # Do not eager load code on boot.
   config.eager_load = false
+  config.hosts = nil
 
   # Show full error reports.
   config.consider_all_requests_local = true
@@ -45,7 +46,8 @@ Rails.application.configure do
   end
 
   # Store uploaded files on the local file system (see config/storage.yml for options).
-  config.active_storage.service = :local
+  config.active_storage.service = :disk
+  config.active_storage.resolve_model_to_route = :rails_storage_proxy
 
   # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = true