diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..3fe6b57
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,135 @@
+name: Build
+
+on:
+  push:
+    branches: [ "main", "master" ]
+  pull_request:
+    branches: [ "main", "master" ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+        fetch-tags: true
+
+    - name: Configure version information
+      id: calculate-version
+      if: ${{ github.event_name == 'push' }}
+      shell: bash
+      run: |
+        git fetch --tags --force
+        
+        if LAST_TAG=$(git describe --tags --abbrev=0 2>/dev/null); then
+            RANGE="${LAST_TAG}..HEAD"
+        else
+            LAST_TAG="v0.1.9"
+            RANGE="HEAD"
+        fi
+        
+        IFS='.' read -r major minor patch <<< "${LAST_TAG#v}"
+        NEW_VERSION="$major.$minor.$((patch + 1))"
+        
+        CHANGELOG=$(git log $RANGE --oneline | sed 's/^/* /')
+        if [ -z "$CHANGELOG" ]; then
+          CHANGELOG="Re-run of version $NEW_VERSION or maintenance build."
+        fi
+        
+        echo "version-string=$NEW_VERSION" >> $GITHUB_OUTPUT
+        echo "new-tag=v$NEW_VERSION" >> $GITHUB_OUTPUT
+        {
+          echo "changelog<<EOF"
+          echo "## What's Changed"
+          echo "$CHANGELOG"
+          echo "EOF"
+        } >> $GITHUB_OUTPUT
+
+    - name: Setup Tools Cache
+      id: tools-cache
+      uses: actions/cache@v4
+      with:
+        path: |
+          cmake-3.30.5-linux-x86_64
+          ccache
+        key: ${{ runner.os }}-tools-${{ hashFiles('**/CMakeLists.txt') }}
+
+    - name: Install tools
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y mingw-w64 zstd ccache zip
+        mkdir -p ccache
+        echo "CCACHE_DIR=$GITHUB_WORKSPACE/ccache" >> $GITHUB_ENV
+
+    - name: Install CMake 3.30
+      if: steps.tools-cache.outputs.cache-hit != 'true'
+      run: |
+        wget -q https://github.com/Kitware/CMake/releases/download/v3.30.5/cmake-3.30.5-linux-x86_64.tar.gz
+        tar xzf cmake-3.30.5-linux-x86_64.tar.gz
+
+    - name: Add CMake to path
+      run: echo "$GITHUB_WORKSPACE/cmake-3.30.5-linux-x86_64/bin" >> $GITHUB_PATH
+
+    - name: Get WolfSSL for MinGW (pre-built from MSYS2)
+      run: |
+        if [ ! -d "/usr/x86_64-w64-mingw32/include/wolfssl" ]; then
+          wget -q "https://repo.msys2.org/mingw/mingw64/mingw-w64-x86_64-wolfssl-5.7.2-1-any.pkg.tar.zst"
+          tar xf mingw-w64-x86_64-wolfssl-5.7.2-1-any.pkg.tar.zst
+          sudo cp -r mingw64/include/wolfssl /usr/x86_64-w64-mingw32/include/
+          sudo cp mingw64/lib/libwolfssl.a /usr/x86_64-w64-mingw32/lib/
+        fi
+
+    - name: Patch missing MinGW headers
+      run: |
+        [ -f /usr/x86_64-w64-mingw32/include/consoleapi.h ] || \
+          printf '#pragma once\n#include <windows.h>\n' | \
+          sudo tee /usr/x86_64-w64-mingw32/include/consoleapi.h > /dev/null
+
+    - name: Configure CMake
+      run: |
+        cmake -B build -S . \
+          -DCMAKE_SYSTEM_NAME=Windows \
+          -DCMAKE_C_COMPILER=x86_64-w64-mingw32-gcc \
+          -DCMAKE_CXX_COMPILER=x86_64-w64-mingw32-g++ \
+          -DCMAKE_RC_COMPILER=x86_64-w64-mingw32-windres \
+          -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+          -DWOLFSSL_ROOT_DIR=/usr/x86_64-w64-mingw32 \
+          -DWOLFSSL_INCLUDE_DIR=/usr/x86_64-w64-mingw32/include \
+          -DWOLFSSL_LIBRARY=/usr/x86_64-w64-mingw32/lib/libwolfssl.a
+
+    - name: Build Unlocker
+      run: cmake --build build --target dbd-unlocker
+
+    - name: Package Build
+      run: |
+        EXE=$(find build -name "*.exe" -not -path "*/CMakeFiles/*" | head -1)
+        echo "Found EXE: $EXE"
+        mkdir -p release
+        cp "$EXE" release/
+        cp res/*.json release/
+        cd release && zip -j ../unlocker.zip *
+
+    - name: Upload Artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: unlocker-build
+        path: unlocker.zip
+
+    - name: Finalize Version and Push Tag
+      if: ${{ github.event_name == 'push' && success() }}
+      run: |
+        git tag ${{ steps.calculate-version.outputs.new-tag }}
+        git push origin ${{ steps.calculate-version.outputs.new-tag }}
+
+    - name: Create Gitea Release
+      if: ${{ github.event_name == 'push' && success() }}
+      uses: akkuman/gitea-release-action@v1
+      with:
+        files: unlocker.zip
+        tag_name: ${{ steps.calculate-version.outputs.new-tag }}
+        name: Release ${{ steps.calculate-version.outputs.new-tag }}
+        body: ${{ steps.calculate-version.outputs.changelog }}
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