menubar-stats

Install command: 
brew install --cask menubar-stats

Name: MenuBar Stats

System monitor with temperature & fans plugins

https://seense.com/menubarstats/

Cask JSON API: /api/cask/menubar-stats.json

Cask code: menubar-stats.rb on GitHub

Current version: 3.9

Requirements: macOS >= 11

Analytics:

Installs (30 days)
menubar-stats 36
Installs (90 days)
menubar-stats 128
Installs (365 days)
menubar-stats 569