Load extension from unpacked2x folder as local package.

Chrome > Extensions > Manage Extensions

Click Load unpacked button and select the unpacked2x directory

Open Chrome DevTool Panel > Choose ResourceSaver Tab

Saved website will have same structure as in remote server, you can use any http server tool to host the web content again eg. http-server

Make sure your Node.js version match with version in .nvmrc

Install yarn

yarn

yarn build

Project will be built output to unpacked2x