Earlier quoted context omitted.
Ignoring Nix is a blatant sign of failure. systemd could learn a thing or two, or even a few dozen things from the language design itself. About UNIX concepts, they're hidden temporarily because systemd, IMHO, is surfing a deep wave of change in the way OSes are understood. It's very declarative, open to instrumentation (virtualization). Turning the machine into an object. In a few years ideas will have settled and m…
you forgot that they are stuck dealing with the systems already in place. Do you expect Redhat and Debian to give up rpms and debs?
ps: Debian is working on something similar to that https://wiki.debian.org/ReproducibleBuilds.