diff --git a/windows/welcome/src/SilverOS.Welcome.Core/Class1.cs b/windows/welcome/src/SilverOS.Welcome.Core/Class1.cs
deleted file mode 100644
index fa8f040..0000000
--- a/windows/welcome/src/SilverOS.Welcome.Core/Class1.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace SilverOS.Welcome.Core;
-
-public class Class1
-{
-
-}
diff --git a/windows/welcome/src/SilverOS.Welcome.Core/Flavours/FlavourManifest.cs b/windows/welcome/src/SilverOS.Welcome.Core/Flavours/FlavourManifest.cs
new file mode 100644
index 0000000..38b62f8
--- /dev/null
+++ b/windows/welcome/src/SilverOS.Welcome.Core/Flavours/FlavourManifest.cs
@@ -0,0 +1,30 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace SilverOS.Welcome.Core.Flavours;
+
+public sealed record FlavourManifest
+{
+    public string Id { get; init; } = "";
+    public string Label { get; init; } = "";
+    public string Description { get; init; } = "";
+    public bool IsDefault { get; init; }
+    public HardeningSpec Hardening { get; init; } = new();
+    public IReadOnlyList<string> AppSet { get; init; } = Array.Empty<string>();
+    public IReadOnlyDictionary<string, JsonElement> Settings { get; init; }
+        = new Dictionary<string, JsonElement>();
+
+    public static readonly JsonSerializerOptions JsonOptions = new()
+    {
+        PropertyNameCaseInsensitive = true,
+        ReadCommentHandling = JsonCommentHandling.Skip,
+        AllowTrailingCommas = true
+    };
+}
+
+public sealed record HardeningSpec
+{
+    public IReadOnlyList<string> Modules { get; init; } = Array.Empty<string>();
+    public IReadOnlyDictionary<string, string> Params { get; init; }
+        = new Dictionary<string, string>();
+}
diff --git a/windows/welcome/tests/SilverOS.Welcome.Tests/FlavourManifestTests.cs b/windows/welcome/tests/SilverOS.Welcome.Tests/FlavourManifestTests.cs
new file mode 100644
index 0000000..c2b66f5
--- /dev/null
+++ b/windows/welcome/tests/SilverOS.Welcome.Tests/FlavourManifestTests.cs
@@ -0,0 +1,25 @@
+using System.Text.Json;
+using SilverOS.Welcome.Core.Flavours;
+using Xunit;
+
+public class FlavourManifestTests
+{
+    [Fact]
+    public void Deserializes_a_full_manifest()
+    {
+        var json = """
+        {
+          "id": "daily-driver", "label": "Daily-Driver",
+          "description": "Balanced.", "isDefault": true,
+          "hardening": { "modules": ["00","03","05"], "params": { "wdac": "audit" } },
+          "appSet": ["SilverBrowser"], "settings": { "autoLock": 120 }
+        }
+        """;
+        var m = JsonSerializer.Deserialize<FlavourManifest>(json, FlavourManifest.JsonOptions)!;
+        Assert.Equal("daily-driver", m.Id);
+        Assert.True(m.IsDefault);
+        Assert.Equal(new[] { "00", "03", "05" }, m.Hardening.Modules);
+        Assert.Equal("audit", m.Hardening.Params["wdac"]);
+        Assert.Contains("SilverBrowser", m.AppSet);
+    }
+}