Version 0.10.1 of package Taxy has just been released in GNU ELPA. You can now find it in M-x list-packages RET.
Taxy describes itself as: ======================================================= Programmable taxonomical grouping for arbitrary objects ======================================================= More at https://elpa.gnu.org/packages/taxy.html ## Summary: ━━━━━━━━━ TAXY.EL ━━━━━━━━━ [https://elpa.gnu.org/packages/taxy.svg] /Now, where did I put that…/ This library provides a programmable way to classify arbitrary objects into a hierarchical taxonomy. (That's a lot of fancy words to say that this lets you automatically put things in nested groups.) Helpful features include: Dynamic taxonomies Objects may be classified into hierarchies automatically defined at runtime based on their attributes. Reusable taxonomies Taxonomy definitions may be stored in variables and reused in other taxonomies' descendant groups. Classification domain-specific language Easily define a custom DSL used to classify items dynamically ## Recent NEWS: [Not provided 🙁]