This is the theme used on this very site. It is my first attempt at making a block theme for WordPress, so it is in a very early stage.
My goals in the short term for this theme are just to keep adding what I need for this site, and to improve it as I learn.
Goals like adding new features and different customisation options, or making it ready to be distributed as a finished working theme, are not a priority. It will eventually be a theme available for everyone to use, just do not hold your breath.
However, if there is anything you would like to see added, or changed in the theme, feel free to create an issue on GitHub so I — or anyone else — can work on it.