With respect to Debian, I have started to package some of the core components from Nemo (dsme, mce-dev. mce, statefs) as part of my Gtk3 work. There not definately not perfect yet and untested on arm as I've been running in a x86_64 container.

dsme I know needs some manual editing after installation as the packaged systemd service file is looking in the wrong place (ie /usr/lib instead of /usr/lib/x86_64-linux-gnu).

Need to change container at the moment as statefs requires fuse (fine with qemu but aiming to get working via lxc) and to work out why mce is playing up (fails to start, causes boot to be delayed by 3min then starts fine)

If they are of any use to anyone, there on my github page...once I remember to upload a wip oneshot package (nemo one is full of bashisms I need to learn to fix).