Unpack zip file somewhere on your computer
if you don't have a file archiver on your Windows machine, we highly recommend to install 7-ZIP https://www.7-zip.org/
You don't need to install a file archiver on Mac machine, because it's already built-in into the operating system.
Open Chrome extensions list
Enable Developer mode:
Click “Load unpacked extension” and chose folder “build_cloud” from unpacked archive
Done — just go to LinkedIn page. If you need help, contact us firstname.lastname@example.org