diff --git a/modules/audio.nix b/modules/audio.nix
index 2be4ea3..e4fbf40 100644
--- a/modules/audio.nix
+++ b/modules/audio.nix
@@ -3,7 +3,6 @@
 {
   security.rtkit.enable = true;
 
-  # Pipewire
   services.pipewire = {
     enable = true;
     alsa.enable = true;
@@ -13,14 +12,23 @@
     wireplumber.enable = true;
   };
 
+  # Main Pipewire graph configuration
   services.pipewire.extraConfig.pipewire."92-low-latency" = {
-     "context.properties" = {
-       "default.clock.rate" = 48000;
-       "default.clock.quantum" = 256;
-       "default.clock.min-quantum" = 256;
-       "default.clock.max-quantum" = 1024;
-     };
-   };
+    "context.properties" = {
+      "default.clock.rate" = 48000;
+      "default.clock.quantum" = 1024;
+      "default.clock.min-quantum" = 32;
+      "default.clock.max-quantum" = 8192;
+    };
+  };
+
+  # PulseAudio protocol specific tweaks (Crucial for Steam/Proton)
+  services.pipewire.extraConfig.pipewire-pulse."92-pulse-tweaks" = {
+    "pulse.properties" = {
+      "pulse.min.req" = "1024/48000";
+      "pulse.min.quantum" = "1024/48000";
+    };
+  };
 
   # DeepFilterNet noise reduction filter chain
   services.pipewire.extraConfig.pipewire."99-deepfilter-source" = {
diff --git a/modules/home/zed.nix b/modules/home/zed.nix
index 67545a5..2473a06 100644
--- a/modules/home/zed.nix
+++ b/modules/home/zed.nix
@@ -14,6 +14,7 @@
       "astro"
       "vue"
       "latex"
+      "mermaid"
     ];
 
     userSettings = {