I can confirm that the senselapp works on openSUSE Leap 15.1.
I used “alien” to convert the Debian package to an RPM.
% alien -r --script senselapp0.19.32.deb
which produced senselapp-0.19-33.x86_64.rpm
I then installed with
% zypper in senselapp-0.19-33.x86_64.rpm
It’s not signed, so I told the installer to Ignore the signature. No issues with any dependencies.
I didn’t know about the rules file so didn’t have one but I did get a Send Settings to Morph button that works.
Updating the firmware works as well, though after a successful firmware update, the senselapp stays ghosted and there’s still a message that says updating and not to unplug the Morph. The message above these do say that the latest firmware has been updated. Quit and restart the senselapp and all was good.