obsidian

Install command: 
brew install --cask obsidian

Name: Obsidian

Knowledge base that works on top of a local folder of plain text Markdown files

https://obsidian.md/

Cask JSON API: /api/cask/obsidian.json

Cask code: obsidian.rb on GitHub

Current version: 1.8.10

Current version requires: macOS >= 10.15

Analytics:

Installs (30 days)
obsidian 6,276
Installs (90 days)
obsidian 19,463
Installs (365 days)
obsidian 77,615