Emacs includes a built-in mode named Org. Org-mode offers both hierarchy and tags. Org does many things, but it's especially accomplished at notetaking.
Elisp authors have written package extensions (aka "plug-ins") for Org-mode that provide even more powerful and specialized note-taking. Among the most popular today are org-roam (built on the zettlekasten method) and denote.el.
Elisp authors have written package extensions (aka "plug-ins") for Org-mode that provide even more powerful and specialized note-taking. Among the most popular today are org-roam (built on the zettlekasten method) and denote.el.