qr-journal

Install command: 
brew install --cask qr-journal

Name: QR Journal

Allows users with an iSight (or compatible) camera to read QR codes

https://www.joshjacob.com/mac-development/qrjournal.php

Cask JSON API: /api/cask/qr-journal.json

Cask code: qr-journal.rb on GitHub

Current version: 3.0

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
qr-journal 40
Installs (90 days)
qr-journal 94
Installs (365 days)
qr-journal 417