Require app as a string path
Require app as a string path

In a word: RTFM.

https://devcenter.heroku.com/articles/rack#sinatra

hallgren/partial-react,ssorallen/turbo-react,ssorallen/turbo-react,ssorallen/turbo-react,hallgren/partial-react,hallgren/turbo-react,hallgren/turbo-react