ci: try to cross build

.github/workflows/cross-build.yaml

@@ -0,0 +1,80 @@
+name: Cross Build
+
+on:
+  push:
+    branches: ['main']
+  pull_request:
+    branches: '*'
+  workflow_dispatch: # <- Setting to allow manual execution by button.
+
+env:
+  CARGO_TERM_COLOR: always
+  BUILD_PROFILE: release-no-lto
+  APP_NAME: d_merge
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: [ubuntu-latest]
+    runs-on: ${{ matrix.platform }}
+
+    steps:
+      - uses: actions/checkout@v4.2.2
+        with:
+          submodules: true
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Rust cache
+        uses: Swatinem/rust-cache@v2.7.5
+        with:
+          prefix-key: cargo-cross-${{ env.BUILD_PROFILE }}-${{ matrix.platform }}
+
+      - name: Install dependencies (Ubuntu)
+        if: matrix.platform == 'ubuntu-latest'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y nsis lld llvm
+
+      - name: Change default build target
+        run: rustup target add x86_64-pc-windows-msvc
+
+      - name: Install winodws build runner
+        run: cargo install --locked cargo-xwin
+
+      - name: Sync node version
+        uses: actions/setup-node@v4.1.0
+        with:
+          node-version: 'lts/*'
+          cache: 'npm'
+
+      - name: Node.js cache
+        uses: actions/cache@v4.2.0
+        with:
+          path: ${{ github.workspace }}/gui/frontend/.next/cache
+          # Generate a new cache whenever packages or source files change.
+          key: ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-${{ hashFiles('gui/frontend/src/**/*.[jt]s', 'gui/frontend/src/**/*.[jt]sx') }}
+          # If source files changed but packages didn't, rebuild from a prior cache.
+          restore-keys: ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-
+      - name: Install frontend dependencies
+        run: npm ci --force
+
+      - name: Test(Node.js)
+        run: npm test
+      - name: Build Test(GUI)
+        run: npm run build
+
+      - name: Compress outputs(Linux)
+        shell: bash
+        if: runner.os == 'Linux'
+        run: |
+          mkdir -p ./build/assets
+          mv ./target/${{ env.BUILD_PROFILE }}/${{ env.APP_NAME }} ./build
+          mv ./resource/assets ./build
+      # ----------------------------------------------------------------------------------------------------------------
+      - name: Upload a Build Artifact
+        uses: actions/upload-artifact@v4.5.0
+        with:
+          name: ${{ env.APP_NAME }}-${{runner.os}}
+          path: |
+            ./build/