Builderius has 'hook' templates feature that allows creating templates/layouts which will be added to the site by WordPress hook (action or filter). In this video I am showing how to create a whole site using just hook templates and ACF flexible content to give a client maximum flexibility regarding adding/managing content.
This is considered as an advanced tutorial. Also it requires having a theme which templates have logic of displaying ACF flexible content blocks. The advantage of using this approach is that the client can build their site by themselves just by stacking prepared, pre-styled blocks. Similar to Gutenberg blocks. However, all development is secured and versioned by Builderius releases. Yet extensible - new blocks can be added if needed. The content is stored inside the WordPress editor and ACF flexible content custom fields.