scapple

Install command: 
brew install --cask scapple

Name: Scapple

Notepad software

https://www.literatureandlatte.com/scapple.php

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

Cask code: scapple.rb on GitHub

Current version: 1.5.4

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
scapple 57
Installs (90 days)
scapple 119
Installs (365 days)
scapple 368