How to install legacy-peer-deps while deploying in vercel

The most simple way to let vercel know that you want to install an npm package with legacy dependencies while deploying it to vercel it by doing the following:

Step 1. Create a file and named it .npmrc in the root folder of your project.

Step 2. Inside it add this line:

legacy-peer-deps=true

This simple code will do the following:

➡️ Vercel will automatically read this.

➡️ This forces all installs (local + Vercel) to use legacy peer deps.