I added support for readingtime Grav plugin for cards and boxed post layouts. Also has been included in item's template. Then you could customize the output string and words-per-minute in plugin configuration.
Many new features have been added from last post. Carousel and Skills modular templates are welcome, and a lot of bugfixes too. Also we added new styles and updated main libraries (Bootstrap 4.1.3 and FontAwesome 5.5).