diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..8a3652d
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,27 @@
+name: Java Build
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "**" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 26
+        uses: actions/setup-java@v4
+        with:
+          java-version: '26'
+          distribution: 'temurin'
+
+      - name: Create output directory
+        run: mkdir -p out
+
+      - name: Compile Java sources
+        run: javac -d out $(find src -name "*.java")
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