Since I popped on here, I thought I’d share my new (still early in development) theme. The idea for the theme structure is to have a theme-shell which hooks out to the real theme which has all the custom partials, shortcodes etc in module that can be shared with others, with the module not intruding on the consumer’s site or theme except when explicitly called upon. (i.e. the module will not contain render hooks directly. it may have partials that respond to hook calls from the shell theme, however). I make extensive use of templates.Exists to make this a reality.
You can view the theme in its current form on a demo website at https://www.wtg-demos.ca
Hope you enjoy!