diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 84600dd3..f8279e4d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,9 +22,10 @@ jobs:
       - run: cargo test --workspace
 
   nix-test:
-    name: ni-test
+    name: Nix Test
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v7
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@v14
 
diff --git a/Cargo.nix b/Cargo.nix
index 4b4d2c42..5a74ce3e 100644
--- a/Cargo.nix
+++ b/Cargo.nix
@@ -133,6 +133,16 @@ rec {
       # File a bug if you depend on any for non-debug work!
       debug = internal.debugCrate { inherit packageId; };
     };
+    "improvise-worker-server" = rec {
+      packageId = "improvise-worker-server";
+      build = internal.buildRustCrateWithFeatures {
+        packageId = "improvise-worker-server";
+      };
+
+      # Debug support which might change between releases.
+      # File a bug if you depend on any for non-debug work!
+      debug = internal.debugCrate { inherit packageId; };
+    };
     "improvise-ws-server" = rec {
       packageId = "improvise-ws-server";
       build = internal.buildRustCrateWithFeatures {
@@ -2655,6 +2665,14 @@ rec {
           }
         ];
         devDependencies = [
+          {
+            name = "improvise-protocol";
+            packageId = "improvise-protocol";
+          }
+          {
+            name = "improvise-wasm-client";
+            packageId = "improvise-wasm-client";
+          }
           {
             name = "pest";
             packageId = "pest";
@@ -2697,6 +2715,10 @@ rec {
             name = "improvise-formula";
             packageId = "improvise-formula";
           }
+          {
+            name = "improvise-gp";
+            packageId = "improvise-gp";
+          }
           {
             name = "improvise-io";
             packageId = "improvise-io";
@@ -2909,7 +2931,7 @@ rec {
             name = "web-sys";
             packageId = "web-sys";
             target = { target, features }: ("wasm32" == target."arch" or null);
-            features = [ "FileSystemDirectoryHandle" "FileSystemFileHandle" "FileSystemGetFileOptions" "FileSystemReadWriteOptions" "FileSystemRemoveOptions" "FileSystemSyncAccessHandle" "Navigator" "StorageManager" "WorkerGlobalScope" "WorkerNavigator" ];
+            features = [ "Blob" "File" "FileSystemDirectoryHandle" "FileSystemFileHandle" "FileSystemGetFileOptions" "FileSystemReadWriteOptions" "FileSystemRemoveOptions" "FileSystemSyncAccessHandle" "Navigator" "StorageManager" "WorkerGlobalScope" "WorkerNavigator" ];
           }
         ];
         devDependencies = [
@@ -2944,6 +2966,10 @@ rec {
             packageId = "serde";
             features = [ "derive" ];
           }
+          {
+            name = "unicode-width";
+            packageId = "unicode-width";
+          }
         ];
         devDependencies = [
           {
@@ -2993,6 +3019,50 @@ rec {
           }
         ];
 
+      };
+      "improvise-worker-server" = rec {
+        crateName = "improvise-worker-server";
+        version = "0.1.0-rc2";
+        edition = "2024";
+        src = lib.cleanSourceWith { filter = sourceFilter;  src = ./crates/improvise-worker-server; };
+        libName = "improvise_worker_server";type = [ "cdylib" "rlib" ];
+        dependencies = [
+          {
+            name = "anyhow";
+            packageId = "anyhow";
+          }
+          {
+            name = "improvise-command";
+            packageId = "improvise-command";
+          }
+          {
+            name = "improvise-core";
+            packageId = "improvise-core";
+          }
+          {
+            name = "improvise-io";
+            packageId = "improvise-io";
+          }
+          {
+            name = "improvise-protocol";
+            packageId = "improvise-protocol";
+          }
+          {
+            name = "serde_json";
+            packageId = "serde_json";
+          }
+          {
+            name = "wasm-bindgen";
+            packageId = "wasm-bindgen";
+            target = { target, features }: ("wasm32" == target."arch" or null);
+          }
+          {
+            name = "wasm-bindgen-futures";
+            packageId = "wasm-bindgen-futures";
+            target = { target, features }: ("wasm32" == target."arch" or null);
+          }
+        ];
+
       };
       "improvise-ws-server" = rec {
         crateName = "improvise-ws-server";
@@ -7691,7 +7761,7 @@ rec {
           "default" = [ "std" ];
           "std" = [ "wasm-bindgen/std" "js-sys/std" ];
         };
-        resolvedDefaultFeatures = [ "EventTarget" "FileSystemDirectoryHandle" "FileSystemFileHandle" "FileSystemGetFileOptions" "FileSystemHandle" "FileSystemReadWriteOptions" "FileSystemRemoveOptions" "FileSystemSyncAccessHandle" "Navigator" "StorageManager" "WorkerGlobalScope" "WorkerNavigator" "default" "std" ];
+        resolvedDefaultFeatures = [ "Blob" "EventTarget" "File" "FileSystemDirectoryHandle" "FileSystemFileHandle" "FileSystemGetFileOptions" "FileSystemHandle" "FileSystemReadWriteOptions" "FileSystemRemoveOptions" "FileSystemSyncAccessHandle" "Navigator" "StorageManager" "WorkerGlobalScope" "WorkerNavigator" "default" "std" ];
       };
       "web-time" = rec {
         crateName = "web-time";