0. Install nvm

curl -o- <https://raw.githubusercontent.com/nvm-sh/nvm/v0.34.0/install.sh> | bash

1. Install Node.js (LTS)

nvm ls-remote
nvm install --lts
node -v
npx

2. create-react-app(CRA)

npx create-react-app my-app
cd my-app
npm start

https://velog.velcdn.com/images/aseungbo/post/7577ed90-0e57-4830-95d7-a374484beef1/image.png