diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 391f6626..aea13b83 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -22,13 +22,15 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Setup .NET SDK
+      - name: Setup .NET SDK (net8.0, net9.0)
         uses: actions/setup-dotnet@v5
         with:
           dotnet-version: |
             8.0.x
             9.0.x
-            10.0.x
+
+      - name: Setup .NET SDK (global.json)
+        uses: actions/setup-dotnet@v5
 
       - name: Build
         shell: bash
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 47f8f32f..9d0d9119 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -21,28 +21,38 @@ jobs:
   build:
     name: Publish NuGet Packages
     if: "!contains(github.event.head_commit.message, 'skip-ci') || startsWith(github.ref, 'refs/tags/')"
-    runs-on: ubuntu-latest
+    runs-on: windows-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
-      - name: Setup .NET SDK
+      - name: Azure login
+        uses: azure/login@v2
+        with:
+          client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+
+      - name: Setup .NET SDK (net8.0, net9.0)
         uses: actions/setup-dotnet@v5
         with:
           dotnet-version: |
             8.0.x
             9.0.x
-            10.0.x
+
+      - name: Setup .NET SDK (global.json)
+        uses: actions/setup-dotnet@v5
 
       - name: Publish
         shell: bash
         run: |
           dotnet tool restore
-          dotnet make publish \
+          dotnet make publish --sign \
             --nuget-key="${{secrets.NUGET_API_KEY}}" \
-            --github-key="${{secrets.GITHUB_TOKEN}}"
+            --keyvaultUrl="${{secrets.SIGN_KEYVAULT_URL}}" \
+            --keyvaultCertificate="${{secrets.SIGN_KEYVAULT_CERTIFICATE}}"
 
   ###################################################
   # DOCS
diff --git a/.gitignore b/.gitignore
index 664051de..537737dd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,8 +8,8 @@
 .idea
 .DS_Store
 
-# Cakeup
-cakeup-x86_64-latest.exe
+# Sign tool
+.sign
 
 # .NET Core CLI
 /.dotnet/
diff --git a/build.cs b/build.cs
index 3a64cc62..81da16f4 100644
--- a/build.cs
+++ b/build.cs
@@ -45,9 +45,10 @@ Task("Build")
 
 Task("Test")
     .IsDependentOn("Build")
-    .Does(ctx => 
+    .Does(ctx =>
 {
-    ctx.DotNetTest(testProject, new DotNetTestSettings {
+    ctx.DotNetTest(testProject, new DotNetTestSettings
+    {
         Configuration = configuration,
         Verbosity = DotNetVerbosity.Minimal,
         NoLogo = true,
@@ -73,18 +74,66 @@ Task("Package")
     });
 });
 
+Task("Sign-Binaries")
+    .IsDependentOn("Package")
+    .WithCriteria(ctx => ctx.HasArgument("sign"), "Not signing binaries")
+    .Does(ctx =>
+{
+    // Ensure the sign tool is installed
+    ctx.StartProcess("dotnet", new ProcessSettings
+    {
+        Arguments = "tool install --tool-path .sign --prerelease sign"
+    });
+
+    var commandSettings = new CommandSettings
+    {
+        ToolExecutableNames = ["sign", "sign.exe"],
+        ToolName = "sign",
+        ToolPath = ResolveSignTool("sign.exe") 
+            ?? ResolveSignTool("sign")
+            ?? throw new Exception("Failed to locate sign tool"),
+    };
+
+    var files = ctx.GetFiles("./.artifacts/*.nupkg");
+    foreach (var file in files)
+    {
+        ctx.Information("Signing {0}...", file.FullPath);
+
+        var arguments = new ProcessArgumentBuilder()
+            .Append("code")
+            .Append("azure-key-vault")
+            .AppendQuoted(file.FullPath)
+            .AppendSwitchQuoted("--file-list", ctx.MakeAbsolute(ctx.File("./resources/signclient.filter")).FullPath)
+            .AppendSwitchQuoted("--publisher-name", "Spectre Console")
+            .AppendSwitchQuoted("--description", "A .NET library that makes it easier to create beautiful console applications.")
+            .AppendSwitchQuoted("--description-url", "https://spectreconsole.net")
+            .AppendSwitchQuoted("--azure-credential-type", "azure-cli")
+            .AppendSwitchQuotedSecret("--azure-key-vault-certificate", Argument<string>("keyvaultCertificate"))
+            .AppendSwitchQuotedSecret("--azure-key-vault-url", Argument<string>("keyvaultUrl"));
+
+        ctx.Command(commandSettings, arguments);
+        ctx.Information("Done signing {0}.", file.FullPath);
+    }
+
+    FilePath? ResolveSignTool(string name)
+    {
+        var path = ctx.MakeAbsolute(ctx.Directory(".sign").Path.CombineWithFilePath(name));
+        return ctx.FileExists(path) ? path : null;
+    }
+});
+
 Task("Publish-NuGet")
     .WithCriteria(ctx => BuildSystem.IsRunningOnGitHubActions, "Not running on GitHub Actions")
-    .IsDependentOn("Package")
-    .Does(ctx => 
+    .IsDependentOn("Sign-Binaries")
+    .Does(ctx =>
 {
     var apiKey = Argument<string?>("nuget-key", null);
-    if(string.IsNullOrWhiteSpace(apiKey)) {
+    if (string.IsNullOrWhiteSpace(apiKey))
+    {
         throw new CakeException("No NuGet API key was provided.");
     }
 
-    // Publish to GitHub Packages
-    foreach(var file in ctx.GetFiles("./.artifacts/*.nupkg")) 
+    foreach (var file in ctx.GetFiles("./.artifacts/*.nupkg"))
     {
         ctx.Information("Publishing {0}...", file.GetFilename().FullPath);
         DotNetNuGetPush(file.FullPath, new DotNetNuGetPushSettings
diff --git a/resources/signclient.filter b/resources/signclient.filter
new file mode 100644
index 00000000..2295bffe
--- /dev/null
+++ b/resources/signclient.filter
@@ -0,0 +1 @@
+**/Spectre.Console*
\ No newline at end of file