It's a simple React application, based on this calculator, showcasing how a white label app could be implemented with React and Webpack.
Have a look at this blog post for detailed explanation of how it works.
You can build three different versions of this app. One for each "brand": calc_co, acme and the default.
Obviously, before building it you need to run npm install.
npm run build will produce the following app. See it live here.
APP_BRAND=acme npm run buid will produce the following app. See it live here.
APP_BRAND=calc_co npm run buid will produce the following app. See it live here.
If you like my work and thinking about using it in a commercial project, please consider buying me a coffee. Thank you.