diff --git a/.gitea/workflows/Main.yaml b/.gitea/workflows/Main.yaml
new file mode 100644
index 0000000..ff72bad
--- /dev/null
+++ b/.gitea/workflows/Main.yaml
@@ -0,0 +1,26 @@
+name: check main state
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        dotnet-version: [ '9.0.x' ]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup dotnet
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: '9.0.x'
+      - name: Install dependencies
+        run: dotnet restore ./Giants.sln
+      - name: Build
+        run: dotnet build ./Giants.sln
+      - name: Check format
+        run: dotnet format
+      - name: Test with the dotnet CLI
+        run: dotnet test ./Giants.sln
diff --git a/Src/Giants.Application/Src/MatchRepositoryMock.cs b/Src/Giants.Application/Src/MatchRepositoryMock.cs
index cc53218..a937d35 100644
--- a/Src/Giants.Application/Src/MatchRepositoryMock.cs
+++ b/Src/Giants.Application/Src/MatchRepositoryMock.cs
@@ -10,7 +10,7 @@ namespace Giants.Application;
 public class MatchRepositoryMock : IMatchRepository
 {
     private readonly BoardLayout _boardLayout;
-    private static int _lastId = 1;
+    private int _lastId = 1;
 
     private Dictionary<int, Match> _matchs = new Dictionary<int, Match>();