apt-get install -f does not do anything because there are no proken packages to fix. After fiddling around with the packages and apt-get for a bit I can at least state that the problem seems to be with the dependency on libjack0. If you look at what packages the install script for mycroft wants to install, and you try to install them manually, you can actually make the problem with blender go away by explicitly stating it in the install request. The same goes for ia32-libs, but: apt-get install python3.6-dev screen swig swig3.0 uuid-dev zlib1g-dev blender ia32-libs libjack0
The following packages have unmet dependencies:
libjack-jackd2-0:i386 : Conflicts: libjack-0.116
Conflicts: libjack0 but 1:0.125.0-3 is to be installed
libjack0 : Conflicts: libjack-0.116:i386
So obviously the installation of libjack0 conflicts with the i386 library for libjack0 from the ia32-libs package.
I am getting the same issue with Ubuntu 20.10 (64 bit, Gnome)
libjack-jackd2-0 required by loads of things conflicts with libjack0 required by mycroft.
I got around this on my other PC by creating its own partition with Xubuntu, but I can’t do that here at the moment.
I tried the snap, hoping to maybe get around this, but it failed to setup on first run.