Scratch GUI is a set of React components that comprise the interface for creating and running Scratch 3.0 projects
This requires you to have Git and Node.js installed.
In your own node environment/application:
git clone https://github.com/UniScratch/scratch-gui.git
cd scratch-gui
npm install
Running the project requires Node.js to be installed.
Open a Command Prompt or Terminal in the repository and run:
npm start
Then go to https://localhost:8601/ - the playground outputs the default GUI component