In reply to Joseph Quinn.

Using our chrome browser extension (Link mentioned in the post) you already have the Templates Library accessible while you are working in the Gutenberg. Using that you don't have to leave the editor, simply browse templates and copy-paste it where you want to insert the section. We have also integrated the Unsplash Stock Images API in the extension so when you insert a design you can quickly replace the images with the relevant stock images if you like.

Here is a quick intro video of the extension.

The Builder, on the other hand, is another use case where you need to spin Gutenberg pages quickly without even installing WordPress or anything.

What do you think?

@Justin - Those are some great suggestions, and yes I am definitely looking into patterns API and all the progress going on with the Gutenberg editor.

Thanks