I'd love to see Guix with SystemD, but there's no work going in that direction that I am aware of. While I appreciate the work on [GNU Shepherd](https://www.gnu.org/software/shepherd/manual/shepherd.html), especially their documentation quality and the use of scheme instead of the rather obscure nix language, learning yet another init system on top of a new distro while systemd seemingly has won most of the market makes NixOS more attractive. At least to me

Even if Guix were to switch to systemd (it won't), end users would primarily be interacting with services through the same high-level APIs as now.

https://guix.gnu.org/manual/devel/en/guix.html#Services

That is, the only difference in practice would be replacing 'herd' with 'systemctl' when stopping and starting services manually. Anything else, such as modifying a service, has to go through the configuration system.

Similarly, for service authors, whether the API you design ends up creating a systemd unit file or shepherd service object is an implementation detail and would be mostly transparent.