It is being developed since about two decades ago as components and modules of a Karaoke Player. Original goal was to create a Musical Studio Suite called veriwell Musical Studio. The Karaoke Player was named after VMS as veriwell Musical Player (vmp). Most finished work was over at the lite version, veriwell Musical Player lite (mplite).
At second decade of this evolution the ca2 name took shape. A multi-purpose framework for Windows, Linux and macOS. More recently, mobile support is being introduced.