Indieweb plugins installed. They are going to have to work with Twenty Sixteen theme or not. Indieweb capability would be nice but is not a priority for this site right now. Bugfix later. My original vision for this site includes comment form but no Indieweb. Added Indieweb because I can see synergies, but it is not vital for task.
Could have used SemPress theme which I like a lot, but already using it since 2018 on another site and need to have different appearance.