cosmic: add cosmic config

user/cosmic.nix

@@ -0,0 +1,42 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+lib.mkIf (config.my.desktop == "cosmic") {
+
+  home.pointerCursor = {
+    name = "Adwaita";
+    size = 24;
+    package = pkgs.adwaita-icon-theme;
+    gtk.enable = true;
+  };
+
+  home.packages = with pkgs; [
+    adw-gtk3
+
+    newsflash
+    foliate
+    amberol
+    pitivi
+    keepassxc
+    menulibre
+
+    libsForQt5.qt5ct
+    libsForQt5.qtstyleplugin-kvantum
+    qt6Packages.qt6ct
+    qt6Packages.qtstyleplugin-kvantum
+  ];
+
+  services.gpg-agent.pinentry.package = lib.mkForce pkgs.pinentry-gnome3;
+
+  xdg.defaultApplications = {
+    enable = lib.mkForce false;
+  };
+
+  # Wiki COSMIC: Firefox ignores DE theme because of libadwaita
+  programs.firefox.profiles.dev-edition-default.settings = {
+    "widget.gtk.libadwaita-colors.enabled" = false;
+  };
+}