Harbour is a worldwide community effort, to revive the xBase Language. The first goal was to make it fully Clipper compatible. After that was accomplished, it keeps growing. Now, it compiles on almost all platforms. So your old clipper-code can easily be turned into a Linux or Mac Application.
Somehow the development of a software project is very abstract. I found a video, that is also abstract, but stunningly beautiful. It visualizes 11 years of active development.
It looks alive. If anybody says, that harbour is dead, show him or her this video!