diff --git a/README.md b/README.md
index 18e90c7fa..787eeb723 100644
--- a/README.md
+++ b/README.md
@@ -3,19 +3,32 @@ Google Santa Tracker for Android
## About
-[Google Santa Tracker app for Android][play-store] is an educational and entertaining tradition that brings joy to millions of children (and children at heart) across the world over the December holiday period. The app is a companion to the [Google Santa Tracker][santa-web] website ([repository here](https://github.com/google/santa-tracker-web)), showcasing unique platform capabilities like Android Wear watchfaces, device notifications and more.
-
+This repo is a fork of the [Google Santa Tracker app for Android](https://github.com/google/santa-tracker-android). This fork was created to demonstrate some of the tips and tricks on how to speed up your Android Gradle builds.
-
+## What are the build tips?
+1. Use latest Android Gradle plugin
+2. Avoid legacy multidex
+3. Disable multi-APK
+4. Include minimal resources
+5. Disable png crunching
+6. Use Instant Run
+7. Avoid inadvertent changes
+8. Don’t use dynamic versions
+9. Watch the memory
+10. Enable Gradle caching
+
+More details coming...
+## How to use this repo
+Check out this repo and switch to the agp-2.2.0 branch. This branch contains the pre-optimized build configurations. See [Getting the first build working section](#firstbuild).
+
+Best way to observe the build performance in this branch is to use the [Gradle profiler] (https://github.com/gradle/gradle-profiler). You should familiarize yourself with the Gradle profiler before proceeding. Their repo contains excellent documentation.
-## Features
+Once you have observed the build performance of this branch in various scenarios (see `performance.scenarios`), you can switch to agp-3.0.0 branch to observe the optimized build performance by running the same set of build scenarios in `performance.scenarios` file. You can search throughout the project for "Tip" to find the build config tip to achieve the build time improvements.
+
+
-* A beautiful materially designed village
-* Exciting games like Penguin Swim and Rocket Sleigh
-* Interactive Android Wear watchfaces (with sound!)
-* Videos, animations and more.
-## Building the app
+## Getting the first build working
First up, Santa Tracker is powered by [Firebase][firebase], so you'll need to enable it
on your Google account over at the [Firebase console][fire-console]. Once you're in the