DynamoDB configuration

Hi, the development flow I’m supposed to follow when using dynamodb is not entirely clear to me. I have a jobs application using ActiveRecord and Dynomite in development. I managed to connect to RDS just fine, but it’s not clear to me how to use Dynomite. Locally it works fine (using Dynamodb local) but how to connect/configure the deployment? Like for example db creation and running the migrations. There’s a script that runs migrations locally, how does that work once deployed? How to run db:create? Should I use AWS console?
I couldn’t find any documentation, only very generic instructions on how to develop locally. Should I inject an ENV var in dynamodb.yml? Because I did that and obviously my .env.development points to localhost, how to launch commands remotely?
Sorry if this is too basic.