Hi, I saw something the other day saying you can use react with your suitelet anyone has an example of how to?

This is an old project, but the concept is the same. I just started another very similar a few weeks ago. The biggest issue is to prevent React's default of code-splitting. This won't work with the NetSuite file cabinet so you want to your build process to output a single JS file for the whole app. Then it's a matter of building a suitelet that determines the URL for the JS and CSS files and outputs some very basic HTML. Here's an example of the suitelet I'm using in the new project.