gaphor

Install command: 
brew install --cask gaphor

Name: Gaphor

UML/SysML modelling tool

https://gaphor.org/

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

Cask code: gaphor.rb on GitHub

Current version: 3.1.0

Requirements: macOS >= 10.15

Versions:

Intel tahoe 3.1.0
sequoia 3.1.0
sonoma 3.1.0
ventura 3.1.0
monterey 3.1.0
big sur 3.1.0
catalina 3.1.0

Analytics:

Installs (30 days)
gaphor 43
Installs (90 days)
gaphor 105
Installs (365 days)
gaphor 553