How is GNU APL not there? It is standards compliant, 99.9% pure APL2 (per ISO standards), and is actively maintained (bugs and issues are usually turned around

How is GNU APL not there? It is standards compliant, 99.9% pure APL2 (per ISO standards), and is actively maintained (bugs and issues are usually turned around in a day or two). It performs quite well, and can be easily extended. I have even added memmap vectors to it to achieve even more performance (and to begin GPGPU integration). GNU APL also supports a library version (libapl.so) which allows APL2 to be incorporated into other applications via C ffi. This is my primary use case -- interactive development followed by delivery via libapl.so.