The following worked for me from a “clean” Julia environment:
pkg> up # this is necessary if you haven't cloned the General registry yet
pkg> registry add https://github.com/HolyLab/HolyLabRegistry.git
pkg> add RegisterQD
If all you ever need to do is translation, then I imagine SubpixelRegistration should be fine. RegisterQD does translation, but its novelty (if you can call it that) is pretty reliable global rigid (rotation + translation) registration, and somewhat reliable affine registration.