You need a cheap, ultra-low-latency indoor monitor for a room, garage, or nursery. It’s “hot” for instant alerts.
Commercial systems force you to use proprietary apps, cloud storage, and expensive multi-camera licenses. The combination of breaks those chains.
In software development, version numbers dictate features. Users searching for "v90" may be looking for a specific legacy build of Contacam or related drivers. Sometimes, older versions of software are preferred because they are lighter on system resources (CPU/RAM) or compatible with older operating systems like Windows XP or 7.