• use double quotes " whenenver possible

• use rake secret to generate a new secret key for your app
• add APP_SECRET_KEY_BASE=XXXXXXXXX to your .env file
• add the new environment variable to replace the original secret key

# config/initializers/secret_token.rb

DraftServer::Application.config.secret_key_base = ENV["APP_SECRET_KEY_BASE"]```

• add the new secret key to your heroku staging and production environments

heroku config:set APP_SECRET_KEY_BASE=XXXXXXXXX --remote staging heroku config:set APP_SECRET_KEY_BASE=XXXXXXXXX --remote production

• draft
• pick
• roster
• slot
• piece
• user

• establish designations for your staging app

heroku config:set RACK_ENV=staging RAILS_ENV=staging --remote staging

• set up a staging.rb file in your environments directory

git cp config/environments/production.rb config/environments/staging.rb

• more info about (heroku environments)[https://devcenter.heroku.com/articles/multiple-environments]