$ git clone https://github.com/hkaden/Twemoji.git
$ cd Twemoji-master
$ cp config.example.js config.js
# Edit config.js
$ yarn install

cd server
openssl genrsa -out private.pem 2048
openssl rsa -in private.pem -pubout > public.pem

# copy public.pem contents to server/public.js
# module.exports=-----BEGIN PUBLIC KEY-----\n...

$ yarn run dev

$ yarn run lint

$ yarn run build