workstation/config | remove slack & sec override, add clipman, remove dup topgrade entry

workstation/configuration.nix

@@ -90,7 +90,7 @@ in
 
   # Allow unfree packages
   nixpkgs.config.allowUnfree = true;
-  nixpkgs.config.permittedInsecurePackages = [ "electron-18.1.0" ];
+  #nixpkgs.config.permittedInsecurePackages = [ "electron-21.4.0" ];
 
   environment.systemPackages = with pkgs; [
     python-with-my-packages
@@ -106,6 +106,7 @@ in
     btop
     cantarell-fonts
     citrix_workspace
+    clipman
     cura
     darktable
     diff-so-fancy
@@ -185,7 +186,6 @@ in
     rofi
     ruby
     signal-desktop
-    slack
     source-code-pro
     steam
     stellarium
@@ -205,7 +205,6 @@ in
     tmuxp
     toot
     topgrade
-    topgrade
     tut
     ubuntu_font_family
     udiskie