DarkTable 3.0.2 cask not running

Just installed the DarkTable 3.0.2 cask. The application will just not come up, no UI. The status of the process is weird: the task bar shows that it is not running (no “dot”), but when you open the Force Quit tool darktable is ther eand you can force quit it.

How to fix?

PS: Possibly not a problem with homebrew since this also happens if I install from the DMG manually. However, I would be interested if someone knows how to fix it.

According to darktable developers this seems to be a problem with dbus (which I did not install explicitly, so it probably is a dependency for some brew package). They say the dbus default config should be changed.

What works to start darktable is:

DBUS_SESSION_BUS_ADDRESS=autolaunch: /Applications/darktable.app/Contents/MacOS/darktable

But this should not be necessary, dbus should be configured in a way that it works out of the box.