Try plasma manager

linux/blitzar/gui.nix

@@ -18,22 +18,15 @@ let usr = config.constants.userName; in {
         qbittorrent
         razergenie
         ryujinx
-        sweet
-        sweet-ambar-blue
         telegram-desktop
         thunderbird
         wallpaper-engine-plasma6-plugin
         winetricks
         wineWowPackages.stagingFull
-        yorha-sound-theme
       ] ++ (with kdePackages; [
         kdepim-addons
         merkuro
         # polonium
-        qtmultimedia
-        qtwebchannel
-        qtwebengine
-        qtwebsockets
       ]);
       programs = {
         firefox.enable = true;
@@ -55,6 +48,7 @@ let usr = config.constants.userName; in {
         };
         mpv.enable = true;
         obs-studio.enable = true;
+        plasma.enable = true;
         zathura = {
           enable = true;
           options = {

linux/nebula/jellyfin.nix

@@ -11,9 +11,13 @@ in
   services = {
     aria2 = {
       enable = true;
-      extraArguments = "--rpc-listen-all";
-      rpcListenPort = ports.aria2;
       rpcSecretFile = config.sops.secrets.aria2.path;
+      settings = {
+        check-integrity = true;
+        max-concurrent-downloads = 16;
+        rpc-listen-all = true;
+        rpc-listen-port = ports.aria2;
+      };
     };
     jellyfin = {
       enable = true;

linux/protostar/gui.nix

@@ -5,18 +5,25 @@ let
   jovianPkgs = pkgs.extend inputs.jovian.overlays.default;
 in
 {
-  home-manager.users.${usr}.home.packages = with jovianPkgs; [
-    lutris
-    (retroarch.override {
-      cores = with libretro; [
-        pcsx2
-        ppsspp
-      ];
-    })
-    ryujinx
-    winetricks
-    wineWowPackages.stagingFull
-  ];
+  home-manager.users.${usr} = {
+
+    home.packages = with jovianPkgs; [
+      lutris
+      (retroarch.override {
+        cores = with libretro; [
+          pcsx2
+          ppsspp
+        ];
+      })
+      ryujinx
+      winetricks
+      wineWowPackages.stagingFull
+    ];
+    programs = {
+      firefox.enable = true;
+      plasma.enable = true;
+    };
+  };
   i18n.supportedLocales = [
     "C.UTF-8/UTF-8"
     "en_US.UTF-8/UTF-8"