I decided to try KDE (or Plasma) as a desktop environment on my NixOS machine. What I did was simply this:
services.xserver.displayManager.sddm.enable = true; services.xserver.desktopManager.plasma5.enable = true;
With this, I can login and use Plasma. Great! But there are at least two issues: First of all, trying “kmail” using “nix-shell -p kmail --run kmail” I run into a problem:
org.kde.pim.akonadicore: Failed to request resource "" : "Cannot connect to the Akonadi service. (Unable to obtain agent type ''.)"
What’s this about?
Somewhat similarly, I get random popups from “Kwallet” (for example, directly after logging in). Is that something I need to enable and/or manage separately?
I have the feeling that my config needs some tweaking to “really” use KDE/Plasma. Did I forget something?