Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!
openssl genrsa -des3 -out rootCA.key 4096
terminal:
npm i --save-dev rollup rollup-watch rollup-plugin-typescript typescript typings
npm i -S react react-dom
./node_modules/.bin/typings install react react-dom --save
mkdir src dist
touch src/index.tsx