A site intro might say something like this:
Hi there! I’m a security wonk by day, cook by night, and this is my blog. I live in Gotham City, have a bicycle or two, and I like daiquiris. Hemingway style, if not Hemingway quantity.
…or something like this:
I try to learn something new every day. When I work something out that deserves sharing, it goes here.
As this is a new and random place, who knows what might end up here.
Cheers, and stay safe out there in the Interwebs.