diff --git a/packages/rn-tester/README.md b/packages/rn-tester/README.md
index 787457e8143de5..9b82278a78d5b1 100644
--- a/packages/rn-tester/README.md
+++ b/packages/rn-tester/README.md
@@ -30,10 +30,16 @@ rm Podfile.lock
 If you are still having a problem after doing the clean up (which can happen if you have built RNTester with older React Native versions where files were generated inside the react-native folder.), the best way might be to clean-install react-native (e.g. remove node_modules and yarn install).
 
 Both macOS and Xcode are required.
-- `cd packages/rn-tester`
-- Install [Bundler](https://bundler.io/): `gem install bundler`. We use bundler to install the right version of [CocoaPods](https://cocoapods.org/) locally.
-- Install Bundler and CocoaPods dependencies: `bundle install && bundle exec pod install`. In order to use Hermes engine instead of JSC, run: `USE_HERMES=1 bundle exec pod install` instead.
-- Open the generated `RNTesterPods.xcworkspace`. This is not checked in, as it is generated by CocoaPods. Do not open `RNTesterPods.xcodeproj` directly.
+1. `cd packages/rn-tester`
+1. Install [Bundler](https://bundler.io/): `gem install bundler`. We use bundler to install the right version of [CocoaPods](https://cocoapods.org/) locally.
+1. Install Bundler and CocoaPods dependencies: `bundle install && bundle exec pod install`. In order to use Hermes engine instead of JSC, run: `USE_HERMES=1 bundle exec pod install` instead.
+1. Open the generated `RNTesterPods.xcworkspace`. This is not checked in, as it is generated by CocoaPods. Do not open `RNTesterPods.xcodeproj` directly.
+
+#### Note for M1 users
+If you own a Mac M1 laptop, you need to run some different commands to install and run cocoapods.
+
+- `sudo arch -x86_64 gem install ffi`: this installs the `ffi` package to load dynamically-linked libraries.
+- `arch -x86_64 pod install`: this run `pod install` with the right architecture.
 
 ### Running on Android