feature: add github workflows

.github/workflows/dotnet-build.yml

@@ -0,0 +1,33 @@
+name: .NET continuous build and test
+
+on:
+  push:
+    branches:
+      - '*'
+    paths:
+      - 'src/**'
+      - 'test/**'
+      - 'examples/**'
+      - '*.sln'
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+      - name: Restore dependencies
+        run: dotnet restore
+      - name: Build
+        run: dotnet build --no-restore
+      - name: Test
+        run: dotnet test --no-build --verbosity normal
+      - name: Pack OneOf.Extensions.Blazor
+        run: dotnet pack src/OneOf.Extensions.Blazor/ -c Release -o ./artifacts --include-source --verbosity minimal -p:PackageVersion=0.1.${{ github.run_number }}-alpha
+      - name: Push to nuget.org
+        run: dotnet nuget push ./artifacts/*.nupkg --source "https://api.nuget.org/v3/index.json" --api-key ${{ secrets.NUGET_TOKEN }} 

.github/workflows/release-created.yml

@@ -0,0 +1,26 @@
+name: On Release Created
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build_prelease_nuget_package:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+      - name: Restore dependencies
+        run: dotnet restore
+      - name: Build
+        run: dotnet build --no-restore
+      - name: Test
+        run: dotnet test --no-build --verbosity normal
+      - name: Pack OneOf.Extensions.Blazor
+        run: dotnet pack src/OneOf.Extensions.Blazor/ -c Release -o ./artifacts --include-source --verbosity minimal -p:PackageVersion=${{ github.event.release.tag_name }}-${{ github.run_number }}-rc
+      - name: Push to nuget.org
+        run: dotnet nuget push ./artifacts/*.nupkg --source "https://api.nuget.org/v3/index.json" --api-key ${{ secrets.NUGET_TOKEN }}

.github/workflows/release-please.yml

@@ -0,0 +1,18 @@
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+  pull-requests: write
+
+name: release-please
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: google-github-actions/release-please-action@v4
+        with:
+          release-type: simple

.github/workflows/release-published.yml

@@ -0,0 +1,27 @@
+name: .NET Publish
+
+on:
+  release:
+    types: [ published ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+      - name: Restore dependencies
+        run: dotnet restore --configuration Release --verbosity minimal
+      - name: Build
+        run: dotnet build --configuration Release --no-restore --verbosity minimal
+      - name: Test
+        run: dotnet test --configuration Release --no-build --verbosity minimal
+      - name: Pack OneOf.Extensions.Blazor
+        run: dotnet pack src/OneOf.Extensions.Blazor/ -c Release -o ./artifacts --include-source --verbosity minimal -p:PackageVersion=${{ github.event.release.tag_name }}
+      - name: Push to nuget.org
+        run: dotnet nuget push ./artifacts/*.nupkg --source "https://api.nuget.org/v3/index.json" --api-key ${{ secrets.NUGET_TOKEN }}