1. Install dependencies

Assuming you have Ruby installed:

bundle install

2. Create an .env file at project root containing:

ACCOUNT_SID=<ACCOUNT_SID_HERE>
AUTH_TOKEN=<AUTH_TOKEN_HERE>
TWILIO_NUMBER=<TWILIO_NUMBER_HERE>
RECIPIENT_NUMBER=<RECIPIENT_NUMBER_HERE>

Where ACCOUNT_SID, AUTH_TOKEN, and TWILIO_NUMBER can be found within Twilio's settings.

3. Start the application with ruby app.rb