I've updated the site to .NET 7 Blazor and it went well, with only a few minor issues I could easily fix.
I've added a new "Statistics" box to the "Welcome" page. It shows counts for Site Visitors and a "KP says" Top 5 Hits for the Last Month. Visitor numbers are low but that was never the point of this site anyway. It gives me a playground to play around with brand new .NET Blazor features and that's great fun.
I may tweak and optimize the "Statistics" box a bit over the next days. We'll see what happens.