
Description: River is a tiling Wayland compositor focused on simplicity and familiarity. It uses dynamic tiling to automatically arrange windows and supports keyboard shortcuts for navigation. River aims to provide a lightweight and customizable desktop experience.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Yabai is an open-source tiling window manager for macOS that provides advanced window management, customizations and optimizations for power users. It aims to bring the speed and workflow improvements from tiling window managers on Linux to macOS.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API