A little back-story on this extension, as some of you might have heard the name floating around in the past.
This extension actually started out under the FriendsOfFlarum namespace at the end of 2020, and was at the time being developed for a client still under Flarum beta 13. During the time it took to complete the extension, Flarum beta 13 was already quite outdated, and the extension wasn't compatible with the latest Flarum version yet. Beta versions were tagged for Flarum beta 13, but no official release was announced.
This also happened around the time FriendsOfFlarum was re-organizing, and after some discussion it was decided this extension would not join the FoF lineup, as to not add any more workload to the small team. My original plan was to release it under my own namespace.
Since then I have started working on the Flamarkt ecosystem (which is still a work in progress) and this extension plays a key role in the categorization of products in the e-commerce plugin. So I decided to integrate it into the Flamarkt namespace. The git history of the new extension doesn't go back to 2020 because the extension was entirely rewritten from scratch in typescript about 1 year ago.
The "Backoffice" part is part of the Flamarkt software and allows extensions of the Flamarkt ecosystem to be used without any e-commerce feature. Information on how to use the e-commerce part will be published in the future as part of the Flamarkt beta.
I will add screenshots and more documentation in the future. In the meantime you can refer to the old FoF README for a description of what each setting does https://github.com/FriendsOfFlarum/taxonomies