I feel you!
Systemd is the worst thing that happened to GNU-Linux disitrbution in the past years, I don't undesrtand why everybody followed this lunatic gnome-fedora-NetworkManager crew... It is not a system made for people but for corporation... Even the guys from Arch jumped into this crazy systemd world.
We are talking about the guys that sudenly decided to name USB wifi interface with wlxXXXXXXXXXXXX . So great if you use ssh. Thus guys just things inside their (ugly) ecosystem GNOME+ networkmanager and come from the most capitalist linux system: Red hat . And let's talk about their GNOME, such a great grafical environment where you can't even moove the left part of the top pannel to the right or down (or it is the right part, i don't remember). For thoose who have been using it a long time it is amazing to see how it "devolved". GNOME was very good ... back in 2008.
Devuan seems to be one of the best alternative if you like apt and deb way
Mmmm... That doesn't make a lot of sense to me... I mean "using an OS (Kali) on a OS (Devuan)"... The answer would be "use a virtual machine"
If you refer to the tools, well, "Kali tools" aren't made for Kali primaly and it shouldn't be a problem to add kali repositories to devuan in order to install them
Devuan Ceres is also bazed on debian Sid so it should go very gently. You know what? I'll try it: Systemd is such a pain in the bud....they complicated evrything, instead of beeing able to do simple nice bash script we have to redact weird file for every confguration... Enough!
For the adding repo' history check this:
https://www.kali.org/tutorials/advan...in-kali-linux/, you'll get the idea.
cheers!