Getting Jekyll to page properly was more of an issue, than I thought it would be.
First you add into the _config.yaml:

paginate: 25
paginate_path: '/blog/page:num/'

Despite the fact, the minima theme already has a paging built into it, you copy the _layouts/home.html, from the minima github repo to your local folder.
Then the paging works, but still needs some css to make it look good, because minima doesn’t include the css…

So you also copy the _includes/head.html, add this line without the underscores.

<link rel="stylesheet" href="{_{ '/assets/css/style.css' | relative_url }_}">

now you can add your custom css.