ruby-device-detector binary package in Ubuntu Focal amd64

 Precise and fast user agent parser and device detector, backed by the largest
 and most up-to-date agent and device database.
 .
 DeviceDetector will parse any user agent and detect the browser, operating
 system, device used (desktop, tablet, mobile, tv, cars, console, etc.), brand
 and model. DeviceDetector detects thousands of user agent strings, even from
 rare and obscure browsers and devices.
 .
 The DeviceDetector is optimized for speed of detection, by providing optimized
 code and in-memory caching.

Source package