x220 and more: Make adjustments to better work with the host

modules/nixos/communication/default.nix

@@ -6,6 +6,7 @@
     signal-desktop
     element-desktop
     vesktop
+    unstable.flare-signal
   ];
 
   environment.persistence."/nix/persist" = {
@@ -16,6 +17,7 @@
         ".config/tutanota-desktop"
         ".config/tuta_integration"
         ".config/Element"
+        ".local/share/flare"
       ];
     };
   };

modules/nixos/core/fonts.nix

@@ -3,7 +3,7 @@
 {
   fonts = {
     packages = with pkgs; [
-      nerdfonts
+      unstable.nerd-fonts.go-mono
       ipafont
       noto-fonts-emoji
       cantarell-fonts

modules/nixos/development/default.nix

@@ -6,4 +6,6 @@
       ".local/share/emacs"
     ];
   };
-}
+
+  virtualisation.containers.enable = true;
+}