I've been thinking a bit about how one could use a Markdown wiki-like tool such as Obsidian to work with taxonomic data (see earlier posts Obsidian, markdown, and taxonomic trees and Personal knowledge graphs: Obsidian, Roam, Wikidata, and Xanadu). One "gotcha" would be how to name pages.

Returning to the subject of personal knowledge graphs Kyle Scheer has an interesting repository of Markdown files that describe academic disciplines at https://github.com/kyletscheer/academic-disciplines (see his blog post for more background). If you add these files to Obsidian you get a nice visualisation of a taxonomy of academic disciplines.