The Navy still runs more than a few web servers using Sharepoint, albeit behind dedicated network firewall appliances.
The Secretary of the Navy's page (at https://www.secnav.navy.mil/Pages/default.aspx) for instance, is a Sharepoint site. I used to maintain a Navy website hosted under there, and had a bunch of Hugo-specific scripts to convert a Hugo static site into something I could upload to the Sharepoint and have it mostly still work (which involved things like rewriting links and renaming files to end in .aspx).
The Secretary of the Navy's page (at https://www.secnav.navy.mil/Pages/default.aspx) for instance, is a Sharepoint site. I used to maintain a Navy website hosted under there, and had a bunch of Hugo-specific scripts to convert a Hugo static site into something I could upload to the Sharepoint and have it mostly still work (which involved things like rewriting links and renaming files to end in .aspx).