Currently testing on Unix: FreeBSD 13 helloSystem CoreFoundation is not in the FreeBSD repo, so use the local version Linux: UbuntuDDE 23.04 Link to CoreFoundation from GNUstep.
Use cmaketools in vscode or
gmake
Objective-C port of Artemis Entity System - c.f. http://gamadu.com/artemis/
Objective-CBSD-2-Clause