diff --git a/.github/workflows/build-machines-and-homes.yml b/.github/workflows/build-machines-and-homes.yml
index 1900b0e..43ea5bf 100644
--- a/.github/workflows/build-machines-and-homes.yml
+++ b/.github/workflows/build-machines-and-homes.yml
@@ -3,6 +3,7 @@ on:
   workflow_dispatch:
   push:
   pull_request:
+
 env:
   ATTIC_TOKEN: ${{ secrets.ATTIC_TOKEN }}
   NIX_CONFIG: |
@@ -13,6 +14,7 @@ env:
     accept-flake-config = true
     system-features = nixos-test benchmark big-parallel kvm
   TERM: ansi
+
 jobs:
   build-machines:
     strategy:
@@ -36,16 +38,20 @@ jobs:
           remove-codeql: 'true'
           remove-docker-images: 'true'
           build-mount-path: /nix
+
       - name: Install Nix
         uses: cachix/install-nix-action@v30
+
       - name: Sync repository
         uses: actions/checkout@v4
         with:
           persist-credentials: false
+
       - name: setup attic
         run: |
           nix profile install github:zhaofengli/attic
           attic login cy7 https://cache.cy7.sh "$ATTIC_TOKEN"
+          
       - name: build
         run: |
           package=".#nixosConfigurations."${{ matrix.machine }}".config.system.build.toplevel"
diff --git a/flake.lock b/flake.lock
index 6efe59b..5851518 100644
--- a/flake.lock
+++ b/flake.lock
@@ -131,11 +131,11 @@
         "rocksdb": "rocksdb"
       },
       "locked": {
-        "lastModified": 1742567657,
-        "narHash": "sha256-p513FwDJl1J8fCpUFbAeZTb0ONbEmn2r5kGFBc9siUw=",
+        "lastModified": 1742266954,
+        "narHash": "sha256-PoVjZXR24r1WPyWWK+DZDAlVr4otn/BcxY7/jd8fehM=",
         "owner": "girlbossceo",
         "repo": "conduwuit",
-        "rev": "33c5afe050491988ee8224af25b9b06e892f4b50",
+        "rev": "7bf92c8a3710eeff229bd86bc81a89daa94b66d5",
         "type": "github"
       },
       "original": {
@@ -868,11 +868,11 @@
     },
     "nixpkgs_5": {
       "locked": {
-        "lastModified": 1743008566,
-        "narHash": "sha256-vqiNwWvNcIuHIPu6RC1WScwDHlcGerCZWZ8XOLVu0B0=",
+        "lastModified": 1742960832,
+        "narHash": "sha256-xdp71QH76Q0esAJi4+5xDzpgBQNFpq8xn6UNfyT/s9w=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "f55926cd4adb4db12ca97a86bc4e48e2c213f4d9",
+        "rev": "24693557f72603e8f2c514ee26854d5c2aad9090",
         "type": "github"
       },
       "original": {
@@ -945,6 +945,22 @@
         "type": "github"
       }
     },
+    "pixelflasher": {
+      "locked": {
+        "lastModified": 1741302870,
+        "narHash": "sha256-7AywZ1b3PaqolAZ0vQmddD6Br4o0a7ucdtE0/W3rnaM=",
+        "owner": "cything",
+        "repo": "nixpkgs",
+        "rev": "5ef8b274bb7f939104295a22cec3382268ed73cc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cything",
+        "ref": "pixelflasher",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "pre-commit-hooks-nix": {
       "inputs": {
         "flake-compat": [
@@ -1008,6 +1024,7 @@
         "nixpkgs-stable": "nixpkgs-stable_2",
         "nixvim": "nixvim",
         "nvim-github-theme": "nvim-github-theme",
+        "pixelflasher": "pixelflasher",
         "rust-overlay": "rust-overlay",
         "sops-nix": "sops-nix",
         "treefmt": "treefmt",
diff --git a/flake.nix b/flake.nix
index b5fccc8..1c5adea 100644
--- a/flake.nix
+++ b/flake.nix
@@ -71,6 +71,7 @@
       url = "github:nix-community/nix-index-database";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    pixelflasher.url = "github:cything/nixpkgs/pixelflasher";
     attic = {
       url = "github:zhaofengli/attic";
       inputs = {
diff --git a/home/codium.nix b/home/codium.nix
index 117c9e0..00724b6 100644
--- a/home/codium.nix
+++ b/home/codium.nix
@@ -107,7 +107,7 @@
           "vim.enableNeovim" = true;
           "vim.hlsearch" = true;
           "vim.easymotion" = true;
-          "editor.lineNumbers" = "relative";
+	        "editor.lineNumbers" = "relative";
           "vim.normalModeKeyBindings" = vimCommonKeyBindings ++ [
             {
               "before" = [ ";" ];
@@ -223,32 +223,32 @@
             }
           ];
         };
-      keybindings = [
-        # repeat these vim bindings here cause otherwise they get overridden by vscode
-        {
-          "key" = "ctrl+b";
-          "when" = "inputFocus";
-          "command" = "cursorLeft";
-        }
-        {
-          "key" = "ctrl+f";
-          "when" = "inputFocus";
-          "command" = "cursorRight";
-        }
-        # clear default bindings that conflict
-        {
-          "key" = "ctrl+f";
-          "command" = "-actions.find";
-        }
-        {
-          "key" = "ctrl+b";
-          "command" = "-workbench.action.toggleSidebarVisibility";
-        }
-        {
-          "key" = "ctrl+w";
-          "command" = "-workbench.action.closeActiveEditor";
-        }
-      ];
+        keybindings = [
+          # repeat these vim bindings here cause otherwise they get overridden by vscode
+          {
+            "key" = "ctrl+b";
+            "when" = "inputFocus";
+            "command" = "cursorLeft";
+          }
+          {
+            "key" = "ctrl+f";
+            "when" = "inputFocus";
+            "command" = "cursorRight";
+          }
+          # clear default bindings that conflict
+          {
+            "key" = "ctrl+f";
+            "command" = "-actions.find";
+          }
+          {
+            "key" = "ctrl+b";
+            "command" = "-workbench.action.toggleSidebarVisibility";
+          }
+          {
+            "key" = "ctrl+w";
+            "command" = "-workbench.action.closeActiveEditor";
+          }
+        ];
     };
   };
 }
diff --git a/modules/attic.nix b/modules/attic.nix
index e546a9e..a43d444 100644
--- a/modules/attic.nix
+++ b/modules/attic.nix
@@ -18,10 +18,7 @@ in
       settings = {
         listen = "[::]:8091";
         api-endpoint = "https://cache.cy7.sh/";
-        allowed-hosts = [
-          "cache.cy7.sh"
-          "cdn.cy7.sh"
-        ];
+        allowed-hosts = [ "cache.cy7.sh" "cdn.cy7.sh" ];
         require-proof-of-possession = false;
         compression = {
           type = "none";
diff --git a/overlay/attic/prefetch-8-chunks.patch b/overlay/attic/prefetch-8-chunks.patch
index 3d6134f..eafc514 100644
--- a/overlay/attic/prefetch-8-chunks.patch
+++ b/overlay/attic/prefetch-8-chunks.patch
@@ -11,4 +11,13 @@ index 02e4857..b522154 100644
              Download::Url(url) => Ok(Redirect::temporary(&url).into_response()),
              Download::AsyncRead(stream) => {
                  let stream = ReaderStream::new(stream).map_err(|e| {
+@@ -262,7 +262,7 @@ async fn get_nar(
+ 
+         // TODO: Make num_prefetch configurable
+         // The ideal size depends on the average chunk size
+-        let merged = merge_chunks(chunks, streamer, storage, 2).map_err(|e| {
++        let merged = merge_chunks(chunks, streamer, storage, 8).map_err(|e| {
+             tracing::error!(%e, "Stream error");
+             e
+         });
 
diff --git a/overlay/default.nix b/overlay/default.nix
index 71bee1e..d8780e2 100644
--- a/overlay/default.nix
+++ b/overlay/default.nix
@@ -16,6 +16,7 @@ in
     in
     {
       conduwuit = pkgFrom inputs.conduwuit "default";
+      pixelflasher = nixpkgsFrom inputs.pixelflasher "pixelflasher";
       attic-server = pkgFrom inputs.attic "attic-server";
       attic = pkgFrom inputs.attic "attic";
       garage = (