Quick shoutout to xHarbour and Harbour - the open-source, commercially-supported versions of Clipper. https://github.com/harbour/core

The projects are still going strong and many years ago I had ported a huge Clipper project into Harbour and had it working well across a 20 node network with both Clipper and Harbour binaries working simultaneously on the same database.

These days every time I make another web application I wish for the simplicity of xBase. But there is some core truth about application development hidden there that is lost to me now.