Use a single-dino Heroku to receive the latest push and have the dino deploy the appropriate folders to S3 for you? I don't know of an existing way to do that

Use a single-dino Heroku to receive the latest push and have the dino deploy the appropriate folders to S3 for you? I don't know of an existing way to do that but it would be a negligible amount of code + amazon sdk in most languages.