I've always thought it's a shame that all the blogging platforms seem focused on public access, so I've been working on an open-source private blogging platform. Nothing technically complex but aims for super-easy scripted deployment (currently on AWS, also thinking about Raspberry PI), so that you don't need to entrust a big tech company with stewarding access to your content. I'm using it for sharing pictures of my daughter with friends and family.
https://github.com/mawise/simpleblog