
Description: Subtle is a manual tiling window manager for Linux that uses keyboard shortcuts to arrange and navigate windows. It is designed to be simple, fast, and lightweight.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Xlambda is an open-source serverless computing platform that allows users to deploy and run code without managing servers. It supports multiple languages and allows building event-driven applications that automatically scale up and down based on demand.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API