make nix flake check work

modules/graphical/gnome.nix

@@ -56,12 +56,10 @@ in {
       gnomeExtensions.dash2dock-lite
       gnomeExtensions.dash-to-dock
       gnomeExtensions.vitals
-      gnomeExtensions.rounded-window-corners
-      gnomeExtensions.wallpaper-switcher
+      gnomeExtensions.rounded-window-corners-reborn
       gnomeExtensions.backslide
       gnomeExtensions.tray-icons-reloaded
       gnomeExtensions.blur-my-shell
-      gnomeExtensions.material-shell
       gnomeExtensions.paperwm
     ];
   };

modules/graphical/hyprland.nix

@@ -19,12 +19,12 @@ in {
         };
     };
 
-    nix.settings = {
-      substituters = [ "https://hyprland.cachix.org" ];
-      trusted-public-keys = [
-        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
-      ];
-    };
+    #nix.settings = {
+    #  substituters = [ "https://hyprland.cachix.org" ];
+    #  trusted-public-keys = [
+    #    "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+    #  ];
+    #};
 
     hardware = {
       # Opengl

modules/misc/cli-tools.nix

@@ -32,7 +32,7 @@ in
     environment.systemPackages = with pkgs; [
       getTotalPowerUsed
       watchCurrentPowerUsed
-      powerjoular # monitor power usage
+      (if lib.versionOlder lib.version "25.05" then wget else powerjoular) # monitor power usage
       fzf # fuzzy finder
       bat # fancy cat
       fd # nicer find

modules/services/caldav.nix

@@ -29,7 +29,11 @@ in {
     };
 
     systemd.services.kop-fhcalendar = let
-      radicale = config.services.radicale.settings.storage.filesystem_folder;
+      radicale = if lib.versionOlder lib.version "25.05" then
+        (builtins.elemAt
+          config.services.radicale.settings.storage.filesystem_folder 0)
+      else
+        config.services.radicale.settings.storage.filesystem_folder;
       # not reproducible
       working =
         "${radicale}/collection-root/kopatz/b6d2c446-8109-714a-397f-1f35d3136639";