move job directly to steps

.github/workflows/desktop-build.yml

@@ -101,70 +101,6 @@ jobs:
               --target "$target" --title "$release_name" \
               --notes-file "$body_path"
 
-  install-qt:
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - soc: Intel
-            os: macos-15-intel
-          - soc: Apple
-            os: macos-15
-
-    name: Install Qt for ${{ matrix.soc }}
-    runs-on: ${{ matrix.os }}
-    env:
-      QT_VERSION: 6.6.3
-      QT_ARCH: clang_64
-      QT_MODULES: "qtimageformats qtmultimedia qtwebsockets"
-
-    steps:
-      - name: Force clean cache
-        if: false
-        env:
-          GH_TOKEN: ${{ github.token }}
-          GH_REPO: ${{ github.repository }}
-          BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge
-        run: gh cache delete qt-macos-${{ matrix.soc }}-${{ env.QT_VERSION }}
-
-      - name: Restore thin Qt libraries
-        id: restore_qt
-        uses: actions/cache/restore@v4
-        with:
-          lookup-only: true
-          path: ${{ github.workspace }}/Qt
-          key: thin-qt-macos-${{ matrix.soc }}-${{ env.QT_VERSION }}
-
-      # Using jurplel/install-qt-action to install Qt without using brew
-      # qt build using vcpkg either just fails or takes too long to build
-      - name: Install Qt ${{env.QT_VERSION}}
-        if: steps.restore_qt.outputs.cache-hit != 'true'
-        uses: jurplel/install-qt-action@v4
-        with:
-          cache: false # caching manually after thinning
-          version: ${{env.QT_VERSION}}
-          arch: ${{env.QT_ARCH}}
-          modules: ${{env.QT_MODULES}}
-          dir: ${{ github.workspace }}
-
-      - name: Thin Qt libraries
-        if: steps.restore_qt.outputs.cache-hit != 'true'
-        run: |
-          export ARCH=$(uname -m)
-          export NPROC=$(sysctl -n hw.ncpu)
-          echo "::group::Thinning Qt libraries to $ARCH using $NPROC cores"
-          find ${{ github.workspace }}/Qt -type f -print0 | \
-            xargs -0 -n1 -P "$NPROC" sh -c \
-              'file -b --mime-type "$0" | grep -q "application/x-mach-binary" && echo "Processing $0" && lipo "$0" -thin "$ARCH" -output "$0" || true'
-          echo "::endgroup::"
-
-      - name: Cache thin Qt libraries
-        if: steps.restore_qt.outputs.cache-hit != 'true'
-        uses: actions/cache/save@v4
-        with:
-          path: ${{ github.workspace }}/Qt
-          key: thin-qt-macos-${{ matrix.soc }}-${{ env.QT_VERSION }}
-
   build-linux:
     strategy:
       fail-fast: false
@@ -321,7 +257,7 @@ jobs:
             qt_version: 6.6.3
             qt_arch: clang_64
             qt_modules: qtimageformats qtmultimedia qtwebsockets
-            cache_qt: false # qt caches take too much space for macOS (1.1Gi)
+            cache_qt: false # caching manually after thinning
             cmake_generator: Ninja
             use_ccache: 1
 
@@ -398,7 +334,7 @@ jobs:
             cmake_generator_platform: x64
 
     name: ${{matrix.os}} ${{matrix.target}}${{ matrix.soc == 'Intel' && ' Intel' || '' }}${{ matrix.type == 'Debug' && ' Debug' || '' }}
-    needs: [configure, install-qt]
+    needs: configure
     runs-on: ${{matrix.runner}}
 
     steps:
@@ -433,7 +369,37 @@ jobs:
           path: ${{ github.workspace }}/Qt
           key: thin-qt-macos-${{ matrix.soc }}-${{ matrix.qt_version }}
 
-      - name: Install Qt ${{matrix.qt_version}}
+      # Using jurplel/install-qt-action to install Qt without using brew
+      # qt build using vcpkg either just fails or takes too long to build
+      - name: Install Qt ${{matrix.qt_version}} (macOS)
+        if: matrix.os == 'macOS' && steps.restore_qt.outputs.cache-hit != 'true'
+        uses: jurplel/install-qt-action@v4
+        with:
+          cache: ${{matrix.cache_qt}}
+          version: ${{matrix.qt_version}}
+          arch: ${{matrix.qt_arch}}
+          modules: ${{matrix.qt_modules}}
+          dir: ${{github.workspace}}
+
+      - name: Thin Qt libraries
+        if: matrix.os == 'macOS' && steps.restore_qt.outputs.cache-hit != 'true'
+        run: |
+          export ARCH=$(uname -m)
+          export NPROC=$(sysctl -n hw.ncpu)
+          echo "::group::Thinning Qt libraries to $ARCH using $NPROC cores"
+          find ${{ github.workspace }}/Qt -type f -print0 | \
+            xargs -0 -n1 -P "$NPROC" sh -c \
+              'file -b --mime-type "$0" | grep -q "application/x-mach-binary" && echo "Processing $0" && lipo "$0" -thin "$ARCH" -output "$0" || true'
+          echo "::endgroup::"
+
+      - name: Cache thin Qt libraries
+        if: matrix.os == 'macOS' && steps.restore_qt.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: ${{ github.workspace }}/Qt
+          key: thin-qt-macos-${{ matrix.soc }}-${{ matrix.qt_version }}
+
+      - name: Install Qt ${{matrix.qt_version}} (Windows)
         if: matrix.os == 'Windows'
         uses: jurplel/install-qt-action@v4
         with: