diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..2b7542a4
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,35 @@
+name: CI
+
+env:
+  DOTNET_VERSION: '8.0'                 # set this to the .NET Core version to use
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    name: CI
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up .NET Core
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+
+      - name: Build with dotnet
+        run: dotnet build --configuration Release
+
+      - name: dotnet test
+        run: dotnet test --configuration Release --no-build
+
+      - name: dotnet publish
+        run: dotnet publish src/GitHubActionsDotNet.Api/GitHubActionsDotNet.Api.csproj --configuration Release -o artifacts
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: dometrain-artifact
+          path: artifacts/
diff --git a/.github/workflows/cron.yml b/.github/workflows/cron.yml
new file mode 100644
index 00000000..780164a7
--- /dev/null
+++ b/.github/workflows/cron.yml
@@ -0,0 +1,17 @@
+name: Run every 1 hour
+
+env:
+  DOTNET_VERSION: '8.0'                 # set this to the .NET Core version to use
+
+on:
+  schedule:
+    - cron: "0 * * * *"
+
+jobs:
+  cron:
+    name: Run every 1 hour
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Hello world
+        run: echo "Hello World"
diff --git a/.github/workflows/pr-verify.yml b/.github/workflows/pr-verify.yml
new file mode 100644
index 00000000..804aedcf
--- /dev/null
+++ b/.github/workflows/pr-verify.yml
@@ -0,0 +1,30 @@
+name: PR Verify
+
+env:
+  DOTNET_VERSION: '8.0'                 # set this to the .NET Core version to use
+
+on:
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    name: PR Verify
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up .NET Core
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+
+      - name: Build with dotnet
+        run: dotnet build --configuration Release
+
+      - name: dotnet test
+        run: dotnet test --configuration Release --no-build
+
+      - name: dotnet format
+        run: dotnet format -v detailed --verify-no-changes
diff --git a/.github/workflows/secrets.yml b/.github/workflows/secrets.yml
new file mode 100644
index 00000000..6e3fa543
--- /dev/null
+++ b/.github/workflows/secrets.yml
@@ -0,0 +1,18 @@
+name: Secrets workflow
+
+env:
+  DOTNET_VERSION: '8.0'                 # set this to the .NET Core version to use
+  API_CSPROJ_PATH: "./src/GitHubActionsDotNet.Api/GitHubActionsDotNet.Api.csproj"
+  
+on:
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  secrets:
+    name: Secrets Demo
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: echo environment variable
+        run: echo "The value of SECRET_API_KEY is $${{secrets.SECRET_API_KEY}}"
diff --git a/src/GitHubActionsDotNet.Api/Models/WeatherForecast.cs b/src/GitHubActionsDotNet.Api/Models/WeatherForecast.cs
index 786b4a10..baad2092 100644
--- a/src/GitHubActionsDotNet.Api/Models/WeatherForecast.cs
+++ b/src/GitHubActionsDotNet.Api/Models/WeatherForecast.cs
@@ -9,4 +9,7 @@ public record WeatherForecast
     public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
 
     public string? Summary { get; init; }
+
+    public string? Observatory { get; init; }
+
 }