
Description: Mezzano is an open-source operating system that aims to recreate the functionality, APIs, and overall feel of 16-bit operating systems from the 1990s like MS-DOS or Windows 95/98. It runs on modern 64-bit CPUs and provides both a text-based interface and basic GUI.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Haiku is an open source operating system inspired by the BeOS operating system. It is designed to be fast, simple, lightweight, and easy to use. It prioritizes performance, stability, and user experience.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API