Deploy multiple apps to Heroku from a single monorepo

deploy_heroku_apps_from_subdirectory.md

cd repo

# add the first remote
heroku git:remote -a app-one-name
#set git remote heroku to https://git.heroku.com/app-one-name.git

#next, rename the remote to something else
git remote rename heroku heroku-app-one

#now we can add second remote for our other app

heroku git:remote -a app-two-name
#set git remote heroku to https://git.heroku.com/app-two-name.git

#doesn't hurt to rename this one as well
git remote rename heroku heroku-app-two

# deploy each app via it's unique remote
git subtree push --prefix app-one-path heroku-app-one master
git subtree push --prefix app-two-path heroku-app-two master