For this command I needed to install npm, then this weird happened:

~/snort$ npx yarn start

Need to install the following packages:

yarn

Ok to proceed? (y) y

yarn run v1.22.19

$ react-scripts start

/bin/sh: 1: react-scripts: not found

error Command failed with exit code 127.

info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.