Couldn't install pods

[justinjaeger]

I run:
yarn add react-native-shimmer
cd ios && pod install

and the following failure message comes up for pod install:

Analyzing dependencies
[!] Unable to find a specification for `Shimmer (~> 1)` depended upon by `react-native-shimmer`

You have either:
 * mistyped the name or version.
 * not added the source repo that hosts the Podspec to your Podfile.

Couldn't install Pods. Updating the Pods project and trying again...
Command `pod install` failed.
└─ Cause: Unable to find a specification for `Shimmer (~> 1)` depended upon by `react-native-shimmer`

I also tried:
npx react-native link react-native-shimmer
which gives me a success response, but still no luck.

I have react-native v0.63.4