Deployment.11: Deploying the Front-End, buildpack seems to do nothing

Hey all, I apologize if this has already been posted, but I’ve been stuck of various permutations of this problem for a solid week.

I’m on the final section Deploying the Front-End and follow along step-by-step but I run

heroku create vidly-built-with-pack --buildpack https://github.com/mars/create-react-app-buildpack.git

and I add, commit, and push but there is nothing to push. On visiting the page where it is deployed, it’s the the standard Heroku | Welcome to your new app! boilerplate. What happens is as follows:

USER vidly % git commit -m "built with buildpack...Making sure it points to the newest repo."
On branch master
Your branch is up to date with 'heroku/master'.

nothing to commit, working tree clean
USER vidly % git push heroku master
Everything up-to-date

I feel like something is outdated in this lecture but I don’t know enough about back-end to really troubleshoot so I am wholly stuck.

Furthermore, my app runs correctly in dev and with serve -s build but when pushed to the front-end heroku git (not the buildpack git) it still runs in a development environment.