I don’t see any progress in the original distribution.
Searching the net I found this one motioneye.eo https://github.com/jmichault/motioneye.eo.
Will try it now
Update:
Running perfect on XU4 under python 3 and the newest DietPi release.
Install:
Enable GIT in the Dietpi-software section
then, from the motioneye.eo website
git clone https://github.com/jmichault/motioneye.eo.git
and after that
cd motioneye.eo
sudo ./debian_install
be patient, especially on numpy as it takes forever.
Login, add cameras and enjoy 
regards
Schnitzelbrain
Edit:Typo and clarification