Standard KDE Apps missing

hello comunity,
i have come pretty far on with my plasma nixOS installation ,
got steam installed, and so on … but at a certain point
i am stuck,
because there are missing those typical KDE apps like okular, kdenlive, gwenview
and many more which come ususally with a plasma desktop.

Now I have a very minimal plasma desktop, searched nixos packages and also comuninty
packages … is there something I missed ? Thanks in advance…

here my config:


# Edit this configuration ^file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }: 


{
  
 
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];
    
    

  # Use the GRUB 2 boot loader.
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  boot.loader.grub.device = "/dev/sda";
  boot.loader.grub.useOSProber = true;

  # boot.loader.grub.efiSupport = true;
  # boot.loader.grub.efiInstallAsRemovable = true;
  # boot.loader.efi.efiSysMountPoint = "/boot/efi";
  # Define on which hard drive you want to install Grub.

  networking.hostName = "media1"; # Define your hostname.
  #networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # Set your time zone.
  time.timeZone = "Europe/Amsterdam";

  #allow unfree packages
  nixpkgs.config.allowUnfree = true; 
  
  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  # Per-interface useDHCP will be mandatory in the future, so this generated config
  # replicates the default behaviour.
  networking.useDHCP = true;
  networking.interfaces.enp3s0.useDHCP = true;

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Select internationalisation properties.
   i18n.defaultLocale = "de_DE.UTF-8";
   console = {
     font = "Lat2-Terminus16";
     keyMap = "de";
   };
   
  # system video driver 
  services.xserver.videoDrivers = 
  [
  "amdgpu"
  "radeon"
  #"nouveau"
  "modesetting"
  "fbdev"
  
  ];

  # Enable the X11 windowing system.
  services.xserver.enable = true;
  
  


  # Enable the Plasma 5 Desktop Environment.
  services.xserver.displayManager.sddm.enable = true;
  services.xserver.desktopManager.plasma5.enable = true;
  

  # Configure keymap in X11
  services.xserver.layout = "de";
  services.xserver.xkbOptions = "eurosign:e";

  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Enable sound.
  sound.enable = true;
  hardware.pulseaudio.enable = true;

  # Enable touchpad support (enabled default in most desktopManager).
  # services.xserver.libinput.enable = true;
  
 
  
  # Define a user account. Don't forget to set a password with ‘passwd’.
   users.users.andy = {
      isNormalUser = true;
      extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
   };

  # List packages installed in system profile. To search, run:
  #  $ nix search 
      
      environment.systemPackages = with pkgs; [
      
         plasma-desktop  
            
         appstream
         avidemux
	      fwupd 
	 	      
	      bluefish
	      chromium
	      clementine
	     
	      filezilla
	      firefox
	      flatpak
	      
	      glibc
	     	      
	      guile-opengl
	      kdevelop
	      kdev-php
		
	      
	      packagekit
	      pidgin
	      
	      obs-studio
	      python38
	      signal-desktop
	      sddm
	      telegram-purple
	      thunderbird
	      vivaldi
	      vlc
	      wire-desktop
	    
	      wget
    ];
    
  services.flatpak.enable = true;
  services.packagekit.enable = true;
  xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-gtk ];  
    
  programs.steam.enable = true; 
  #programs.plasma-discover.enable = true;
  #programs.discover.enable = true;
   

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  # programs.gnupg.agent = {
  #   enable = true;
  #   enableSSHSupport = true;
  # };
  
 
  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  # services.openssh.enable = true;
  
  
  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  networking.firewall.enable = false;

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "21.05"; # Did you read the comment?

}

that’s certainly strange.

just enabling

   services.xserver.desktopManager.plasma5.enable = true;

brings these programs in.

i see you have plasma-desktop enable in your

environment.systemPackages

what do get if you remove that, and rebuild.

it’s defined here

and get ‘called’ here

strange.