Alright, let's get started with Firebase Cloud Functions! First things first, you need to create a Firebase Project. Head over to the Firebase console to set it up. Don't forget to enable Cloud Firestore and Functions for your project. Next up, you'll need the Firebase CLI on your local machine. This requires Node.js and npm. If you haven't got them yet, grab Node.js from the official site—it comes with npm. Once you're all set, pop open your terminal or command prompt and run: ``` npm install -g firebase-tools ``` Easy peasy, right? Now, let's log into Firebase. Use your Google account and run this command in your terminal: ``` firebase login ``` You'll be prompted to authorize the Firebase CLI to access your projects. Just follow the steps, and you're good to go. Time to initialize your Firebase project. Run this command: ``` firebase init functions ``` Pick your Firebase project from the list, and choose JavaScript as the language for your Cloud Functions. Simple, right? Now comes the fun part—writing your Cloud Functions! In the 'functions' directory that was created, you can start coding. Here's a quick example in JavaScript: ``` exports.myFunction = functions.firestore.document('mycollection/{docId}').onCreate((snap, context) => { // your background task code here }); ``` This function triggers whenever a new document is added to the 'mycollection' collection in your Firestore database. 'snap' is the snapshot of the new document, and 'context' gives you details like event ID and resource name. Once your functions are ready, it's time to deploy them. Run this command: ``` firebase deploy --only functions ``` And there you have it! Your Firebase Cloud Functions are now set to handle your background tasks whenever the specified trigger event happens.