Is better to user ember inside rails o separate

Hi i want to start developer in ember with rails. My question is:

Use the ember gem and have a project with rails and ember inside or
run ember separately?

Hello, @alessio_v85,

I think there is no best way to use one or another JS framework with
rails. There are some best practices but I think you should pick one
that fits to you.

If you need an example of Rails Api with separate ember app check out
"Sean Devine"s Live Code a Charity Auction Application: Episode 1 on
I found it to be a great example but a little time consuming to the
through all this episodes.