diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
index c3d034d..0ab8265 100644
--- a/.config/dotnet-tools.json
+++ b/.config/dotnet-tools.json
@@ -3,25 +3,19 @@
   "isRoot": true,
   "tools": {
     "CodeFileSanity": {
-      "version": "0.0.36",
+      "version": "0.0.37",
       "commands": [
         "CodeFileSanity"
       ]
     },
-    "dotnet-format": {
-      "version": "3.1.37601",
-      "commands": [
-        "dotnet-format"
-      ]
-    },
     "jetbrains.resharper.globaltools": {
-      "version": "2020.3.2",
+      "version": "2023.3.3",
       "commands": [
         "jb"
       ]
     },
     "nvika": {
-      "version": "2.0.0",
+      "version": "3.0.0",
       "commands": [
         "nvika"
       ]
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..d9dcdd9
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,43 @@
+on: [push, pull_request]
+name: Continuous Integration
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  inspect-code:
+    name: Code Quality
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install .NET 8.0.x
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: "8.0.x"
+
+      - name: Restore Tools
+        run: dotnet tool restore
+
+      - name: Restore Packages
+        run: dotnet restore
+
+      - name: CodeFileSanity
+        run: |
+          # TODO: Add ignore filters and GitHub Workflow Command Reporting in CFS. That way we don't have to do this workaround.
+          # FIXME: Suppress warnings from templates project
+          exit_code=0
+          while read -r line; do
+            if [[ ! -z "$line" ]]; then
+              echo "::error::$line"
+              exit_code=1
+            fi
+          done <<< $(dotnet codefilesanity)
+          exit $exit_code
+
+      - name: InspectCode
+        run: dotnet jb inspectcode $(pwd)/osu.Server.DifficultyCalculator.sln --build --output="inspectcodereport.xml" --caches-home="inspectcode" --verbosity=WARN
+
+      - name: NVika
+        run: dotnet nvika parsereport "${{github.workspace}}/inspectcodereport.xml" --treatwarningsaserrors
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index c6856cb..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-clone_depth: 1
-version: '{branch}-{build}'
-image: Visual Studio 2022
-test: off
-
-environment:
-  APPVEYOR: true
-
-build_script:
-  - cmd: dotnet tool restore
-  - cmd: dotnet build osu.Server.DifficultyCalculator.sln -c:Release
-  - cmd: dotnet CodeFileSanity
-  - cmd: dotnet jb inspectcode "osu.Server.DifficultyCalculator.sln" --output="temp/inspectcodereport.xml" --caches-home="temp/inspectcode" --verbosity=WARN
-  - cmd: dotnet nvika parsereport "temp/inspectcodereport.xml" --treatwarningsaserrors
diff --git a/osu.Server.DifficultyCalculator.sln.DotSettings b/osu.Server.DifficultyCalculator.sln.DotSettings
index ad0cc9d..3ca27d8 100644
--- a/osu.Server.DifficultyCalculator.sln.DotSettings
+++ b/osu.Server.DifficultyCalculator.sln.DotSettings
@@ -143,6 +143,7 @@
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=RedundantImmediateDelegateInvocation/@EntryIndexedValue">WARNING</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=RedundantLambdaSignatureParentheses/@EntryIndexedValue">WARNING</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=RedundantReadonlyModifier/@EntryIndexedValue">WARNING</s:String>
+	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=RedundantTypeDeclarationBody/@EntryIndexedValue">SUGGESTION</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=RedundantTypeSpecificationInDefaultExpression/@EntryIndexedValue">WARNING</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=RedundantLinebreak/@EntryIndexedValue">WARNING</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=RedundantSpace/@EntryIndexedValue">WARNING</s:String>