In the guides we currently maintain a custom homepage example:

https://github.com/IQSS/dataverse/blob/develop/doc/sphinx-guides/source/_static/installation/files/var/www/dataverse/branding/custom-homepage-dynamic.html

Since we recently brought the dataverse.harvard.edu customization files under version control at https://github.com/IQSS/dataverse.harvard.edu/tree/master/customization, we should instead point here for an example instead of maintaining a file in the Guides, as this will allow us to only update in one place and not maintain multiple copies. The version in the Guides is currently broken because of IQSS/dataverse.harvard.edu#115.