feat: nb performance tweaks

hosts/nb/modules/desktop/bitwarden.nix

@@ -24,7 +24,7 @@ in
   #### Autostart Bitwarden desktop in your user session ########################
   systemd.user.services.bitwarden = {
     description = "Bitwarden Desktop";
-    after = [ "graphical-session.target" ];
+    after = [ "graphical-session.target" "network-online.target" ];
     wantedBy = [ "graphical-session.target" ];
     serviceConfig.ExecStart = "${pkgs.bitwarden}/bin/bitwarden";
     serviceConfig.Restart = "on-abort";

hosts/nb/modules/ollama.nix

@@ -11,4 +11,10 @@
       "mxbai-embed-large"
     ];
   };
+
+  # ROCm GPU configuration for AMD Ryzen 7 7840U (gfx1103)
+  systemd.services.ollama.environment = {
+    HSA_OVERRIDE_GFX_VERSION = "11.0.3";
+    ROCR_VISIBLE_DEVICES = "0";
+  };
 }

hosts/nb/modules/qdrant.nix

@@ -3,5 +3,9 @@
 {
   services.qdrant = {
     enable = true;
+    settings = {
+      storage.performance.max_search_threads = 8;
+      storage.optimizers.default_segment_number = 4;
+    };
   };
 }