Once you've followed the process of Granting access to the dependencies (@ocean/security instead @masiv/addon-security) you're able to install the MainLayout by running the npm command:
npm i @ocean/main-layout
#or upgrade to the latest version
npm update @ocean/main-layout
IMPORTANT Latest stable version: 0.0.1-i
After that, just go ahead import, and install the library in the main.js file of your project /src folder as follows:
import OCMainLayout from '@ocean/main-layout';
// You must pass the store as a parameter
Vue.use(OCMainLayout, { store });