Active public_file_server in local to serve public assets

I am testing a rails app with env = production on local. I can not use Thruster to serve assets when I am not turning `config.public_file_server.enabled = true` at `production.rb`. Why can not Thruster serve directly assets from public? Does it need rails to do that?

Start by reproducing the reported Rails production setup with config.public_file_server.enabled disabled, then inspect Thruster's handling of assets under public. Determine whether assets should be served directly without Rails and document or test the expected behavior.

Written by the indexing model from the issue text.