Missing systemd unit files after new installation #1029

I recently installed snapper on this machine, since it'd been working well so far on a different machine. Since I'm using Debian, I fetched the official repo from the site, and installed away (v0.12.2-1). However, I instantly ran into a weird problem: there are no systemd unit files. AFAIU, there should be two pairs of timer/service systemd files, plus the snapperd one. But after setting up my subvolume config files, I went to enable the systemd units, and they're not present.

I pulled the .deb file apart and poked in it, and didn't see any service files. However, I do see them in the source tree. Are those supposed to be coming along with the .deb file? It was long enough ago that I don't quite remember how I'd set things up.