
Description: Frescobaldi is an open source music notation program designed for editing LilyPond files. It provides a simple but powerful graphical interface for writing sheet music with advanced text editing capabilities for LilyPond markup language.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Busker is an open-source alternative to Patreon that allows creators to receive recurring payments from fans and supporters. It is self-hosted software focused on providing creators more control and ownership.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API