Yes, suse build service is a very nice tool and much more interesting than a single package format, which wouldn't help much. And if the dream is to provide jus

Yes, suse build service is a very nice tool and much more interesting than a single package format, which wouldn't help much. And if the dream is to provide just a single binary package for any distro in the world, it won't work anyway. Well, maybe in theory, but if you mean it seriously, you need to compile and link against exactly the same binaries that the target system use. (Or static linking. Or just believe it will work. But serious commercial vendor who wants to provide a real user support cannot.) Which would mean that every Linux system would have to use the same binaries, which is, hm, nonsense.