I can relate to wanting something simpler to use than a static site generator or a full fledged CMS!
For me to use a personal website application I want it to be open source in case the provider ever disappears. I took this approach with my take on a personal blogging app, PostOwl (https://github.com/PostOwl/postowl). It has a similar in-place editing feel to Pika. Now I just need to offer a hosted version so people don't have to install it themselves!