The project is a Node.js application that uses Twilio, Firebase, and Twitter to track progress on the #100DaysOfCode challenge. The app receives text messages from Twilio, extracts the message content, calculates the current day count, posts the tweet to Twitter, and stores it in a Firebase database. To set up the project, users need to install Node.js, npm, ngrok, and create accounts with Twilio, Twitter, and Firebase. They also need to generate API keys and store them in an environment file (.env). The app uses ngrok to expose the local server and configure Twilio numbers. Users can test the app by sending a text message to their Twilio phone number and watching it appear on Twitter.