server runs at 8000, https://github.com/justdvl/languages_back
react at 3000 https://github.com/justdvl/languages_front
React app is started with command yarn start
For translations you need to have also secrets/apiKeys.js with: export const GOOGLE_TRANSLATE_API_KEY="...your google translate api key..."
I welcome help.