diff --git a/.github/actions/cache/action.yml b/.github/actions/cache/action.yml
new file mode 100644
index 0000000000..0d9ef046e5
--- /dev/null
+++ b/.github/actions/cache/action.yml
@@ -0,0 +1,28 @@
+name: 'Cache setup '
+description: 'Caches cargo and external dependencies.'
+inputs:
+  codec-rav1e:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+runs:
+  using: "composite"
+  steps:
+    - name: Cache cargo registry
+      if: ${{ inputs.codec-rav1e == 'LOCAL' }}
+      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      continue-on-error: true
+      with:
+        path: ~/.cargo/registry/cache
+        key: cargo-registry-${{ runner.os }}-${{ hashFiles('CMakeLists.txt', 'cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}-${{ github.job }}
+        restore-keys: |
+          cargo-registry-${{ runner.os }}-${{ hashFiles('CMakeLists.txt', 'cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}-
+          cargo-registry-${{ runner.os }}-
+    - name: Cache external dependencies
+      id: cache-ext
+      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      with:
+        path: ext, build/_deps
+        key: ext-${{ runner.os }}-${{ hashFiles('CMakeLists.txt', 'cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}-${{ github.job }}
+        restore-keys: |
+          ext-${{ runner.os }}-${{ hashFiles('CMakeLists.txt', 'cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}-
+          ext-${{ runner.os }}-
diff --git a/.github/actions/setup-common/action.yml b/.github/actions/setup-common/action.yml
new file mode 100644
index 0000000000..c9b652e01f
--- /dev/null
+++ b/.github/actions/setup-common/action.yml
@@ -0,0 +1,52 @@
+name: 'Setup for all OSes'
+description: 'Installs dependencies for all OSes'
+inputs:
+  codec-aom:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-dav1d:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-rav1e:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  recent-cmake:
+    description: 'Can take the values: true, false. Only useful on Linux'
+    default: false
+runs:
+  using: "composite"
+  steps:
+    - name: Set up Python
+      uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+      with:
+        python-version: '3.x'
+    - name: Set up CMake < 3.18
+      if: ${{ runner.os == 'Linux' && !inputs.recent-cmake }}
+      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
+      with:
+        cmake-version: '3.13.x'
+    - name: Set up CMake >= 3.18
+      if: ${{ runner.os == 'Linux' && inputs.recent-cmake }}
+      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
+      with:
+        cmake-version: '3.18.x'
+    - name: Print CMake version
+      run: cmake --version
+      shell: bash
+    - name: Set up ninja
+      uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
+
+    - name: Set up nasm
+      if: ${{ inputs.codec-aom == 'LOCAL' }}
+      uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
+    - name: Set up meson
+      if: ${{ inputs.codec-dav1d == 'LOCAL' }}
+      run: pip install meson
+      shell: bash
+    - name: Set up rust
+      uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1.0.7
+      if: ${{ inputs.codec-rav1e == 'LOCAL' }}
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
diff --git a/.github/actions/setup-linux/action.yml b/.github/actions/setup-linux/action.yml
new file mode 100644
index 0000000000..42a199cf60
--- /dev/null
+++ b/.github/actions/setup-linux/action.yml
@@ -0,0 +1,76 @@
+name: 'Setup on Linux'
+description: 'Installs dependencies and sets up env variables'
+inputs:
+  codec-aom:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-dav1d:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    edfault: 'OFF'
+  codec-rav1e:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  gcc-version:
+    description: 'Can be empty, in which case CC and CXX are not overriden'
+    default: ''
+  libxml2:
+    default: 'OFF'
+  libyuv:
+    default: 'OFF'
+  recent-cmake:
+    description: 'Can take the values: true, false'
+    default: false
+runs:
+  using: "composite"
+  steps:
+    - name: Install non-library dependencies
+      run: |
+        sudo apt update
+        sudo apt install imagemagick libjpeg-turbo8-dev libpng-dev
+      shell: bash
+    - name: Install libaom library
+      if: ${{ inputs.codec-aom == 'SYSTEM' }}
+      run:
+        sudo apt install libaom-dev
+      shell: bash
+    - name: Install libdav1d library
+      if: ${{ inputs.codec-dav1d == 'SYSTEM' }}
+      run:
+        sudo apt install libdav1d-dev
+      shell: bash
+    - name: Install rav1e library
+      if: ${{ inputs.codec-rav1e == 'SYSTEM' }}
+      run:
+        sudo apt install librav1e-dev
+      shell: bash
+    - name: Install libxml2 library
+      if: ${{ inputs.libxml2 == 'SYSTEM' }}
+      run:
+        sudo apt install libxml2
+      shell: bash
+    - name: Install libyuv library
+      if: ${{ inputs.libyuv == 'SYSTEM' }}
+      run:
+        sudo apt install libyuv-dev
+      shell: bash
+
+    - name: Install cargo-c
+      if: ${{ inputs.codec-rav1e == 'LOCAL' }}
+      env:
+        LINK: https://github.com/lu-zero/cargo-c/releases/latest/download
+        CARGO_C_FILE: cargo-c-x86_64-unknown-linux-musl.tar.gz
+      run: |
+        curl -L $LINK/$CARGO_C_FILE | tar xz -C ~/.cargo/bin
+      shell: bash
+
+    - uses: ./.github/actions/setup-common
+      with:
+        codec-aom: ${{ inputs.codec-aom }}
+        codec-dav1d: ${{ inputs.codec-dav1d }}
+        codec-rav1e: ${{ inputs.codec-rav1e }}
+        recent-cmake: ${{ inputs.recent-cmake }}
+
+    - name: Set GCC & G++ compiler
+      if: ${{ inputs.gcc-version != '' }}
+      run: echo "CC=gcc-${{ inputs.gcc-version }}" >> $GITHUB_ENV && echo "CXX=g++-${{ inputs.gcc-version }}" >> $GITHUB_ENV
+      shell: bash
diff --git a/.github/actions/setup-macos/action.yml b/.github/actions/setup-macos/action.yml
new file mode 100644
index 0000000000..b25a0946e4
--- /dev/null
+++ b/.github/actions/setup-macos/action.yml
@@ -0,0 +1,44 @@
+name: 'Setup on Linux'
+description: 'Installs dependencies and sets up env variables'
+inputs:
+  codec-aom:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-dav1d:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-rav1e:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+runs:
+  using: "composite"
+  steps:
+    - name: Install non-library dependencies
+      run: brew install imagemagick
+      shell: bash
+    - name: Install AOM library
+      if: ${{ inputs.codec-aom == 'SYSTEM' }}
+      run: brew install aom
+      shell: bash
+    - name: Install dav1d library
+      if: ${{ inputs.codec-dav1d == 'SYSTEM' }}
+      run: brew install dav1d
+      shell: bash
+
+    - name: Install cargo-c
+      if: ${{ inputs.codec-rav1e == 'LOCAL' }}
+      env:
+        LINK: https://github.com/lu-zero/cargo-c/releases/latest/download
+        CARGO_C_FILE: cargo-c-macos.zip
+      run: |
+        curl -sLo $CARGO_C_FILE $LINK/$CARGO_C_FILE
+        unzip -o $CARGO_C_FILE -d ~/.cargo/bin
+        rm $CARGO_C_FILE
+      shell: bash
+
+    - uses: ./.github/actions/setup-common
+      with:
+        codec-aom: ${{ inputs.codec-aom }}
+        codec-dav1d: ${{ inputs.codec-dav1d }}
+        codec-rav1e: ${{ inputs.codec-rav1e }}
+        recent-cmake: true
diff --git a/.github/workflows/ci-android-emulator-tests.yml b/.github/workflows/ci-android-emulator-tests.yml
index af07439b18..02ea5d1b6c 100644
--- a/.github/workflows/ci-android-emulator-tests.yml
+++ b/.github/workflows/ci-android-emulator-tests.yml
@@ -31,20 +31,11 @@ jobs:
           # r25c is the same as 25.2.9519653.
           ndk-version: r25c
           add-to-path: false
-      - name: Setup ninja
-        uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-      - name: Setup cmake
-        uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
+      - uses: ./.github/actions/setup-common
         with:
-          cmake-version: "3.19.x"
-      - name: Setup python
-        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
-        with:
-          python-version: '3.x'
-      - name: Setup meson
-        run: pip install meson
-      - name: Setup nasm
-        uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
+          codec-aom: 'LOCAL'
+          codec-dav1d: 'LOCAL'
+          recent-cmake: true
       - name: Setup JDK
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
diff --git a/.github/workflows/ci-android-jni.yml b/.github/workflows/ci-android-jni.yml
index 20113b6e31..0fbbcf93d6 100644
--- a/.github/workflows/ci-android-jni.yml
+++ b/.github/workflows/ci-android-jni.yml
@@ -25,20 +25,11 @@ jobs:
           # r25c is the same as 25.2.9519653.
           ndk-version: r25c
           add-to-path: false
-      - name: Setup ninja
-        uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-      - name: Setup cmake
-        uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
+      - uses: ./.github/actions/setup-common
         with:
-          cmake-version: "3.19.x"
-      - name: Setup python
-        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
-        with:
-          python-version: '3.x'
-      - name: Setup meson
-        run: pip install meson
-      - name: Setup nasm
-        uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
+          codec-aom: 'LOCAL'
+          codec-dav1d: 'LOCAL'
+          recent-cmake: true
       - name: Setup JDK
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
diff --git a/.github/workflows/ci-disable-gtest.yml b/.github/workflows/ci-disable-gtest.yml
index ad576d70f0..1b6dabbc52 100644
--- a/.github/workflows/ci-disable-gtest.yml
+++ b/.github/workflows/ci-disable-gtest.yml
@@ -36,40 +36,14 @@ jobs:
 
     steps:
     - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
-    - name: Set GCC & G++ compiler (on Linux)
-      if: runner.os == 'Linux'
-      run: echo "CC=gcc-${{matrix.gcc}}" >> $GITHUB_ENV && echo "CXX=g++-${{matrix.gcc}}" >> $GITHUB_ENV
-    - uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+    - uses: ./.github/actions/setup-linux
       with:
-        python-version: '3.x'
-    - uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1.0.7
-      with:
-        profile: minimal
-        toolchain: stable
-        override: true
-
-    - name: Install cargo-c
-      env:
-        LINK: https://github.com/lu-zero/cargo-c/releases/latest/download
-        CARGO_C_FILE: cargo-c-x86_64-unknown-linux-musl.tar.gz
-      run: |
-        curl -L $LINK/$CARGO_C_FILE | tar xz -C ~/.cargo/bin
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-disable-gtest-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}
-    - name: Setup cmake
-      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
-      with:
-        # CMake version 3.17 is required to build libwebp (which libsharpyuv is part of) on macOS.
-        cmake-version: '3.17.x'
-    - name: Print cmake version
-      run: cmake --version
-    - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - run: pip install meson
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+        codec-rav1e: 'LOCAL'
+        gcc-version: ${{ matrix.gcc }}
+        libyuv: 'LOCAL'
+        recent-cmake: true
 
     - name: Prepare libavif (cmake)
       run: >
@@ -83,15 +57,9 @@ jobs:
         -DAVIF_BUILD_EXAMPLES=ON -DAVIF_BUILD_APPS=ON
         -DAVIF_BUILD_TESTS=ON -DAVIF_ENABLE_GTEST=OFF
         -DAVIF_ENABLE_WERROR=ON
-    - name: Cache cargo registry
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      continue-on-error: true
+    - uses: ./.github/actions/cache
       with:
-        path: ~/.cargo/registry/cache
-        key: cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-disable-gtest
-        restore-keys: |
-          cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-
-          cargo-registry-${{ runner.os }}-
+        codec-rav1e: 'LOCAL'
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-linux-golden-tests.yml b/.github/workflows/ci-linux-golden-tests.yml
index 53786a7aa3..8474a22533 100644
--- a/.github/workflows/ci-linux-golden-tests.yml
+++ b/.github/workflows/ci-linux-golden-tests.yml
@@ -27,26 +27,14 @@ jobs:
 
     steps:
     - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
-    - name: Set GCC & G++ compiler (on Linux)
-      run: echo "CC=gcc-${{matrix.gcc}}" >> $GITHUB_ENV && echo "CXX=g++-${{matrix.gcc}}" >> $GITHUB_ENV
-    - uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+    - uses: ./.github/actions/setup-linux
       with:
-        python-version: '3.x'
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-golden-tests-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}
-    - name: Setup cmake
-      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be
-      with:
-        # CMake 3.18 or higher is required for libxml2
-        cmake-version: '3.18.x'
-    - name: Print cmake version
-      run: cmake --version
-    - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+        gcc-version: ${{ matrix.gcc }}
+        libxml2: 'LOCAL'
+        libyuv: 'LOCAL'
+        recent-cmake: true
     - name: Build mp4box
       if: steps.cache-ext.outputs.cache-hit != 'true'
       working-directory: ./ext
@@ -65,6 +53,7 @@ jobs:
         -DAVIF_BUILD_TESTS=ON -DAVIF_ENABLE_GOLDEN_TESTS=ON
         -DAVIF_ENABLE_GTEST=OFF -DAVIF_ENABLE_WERROR=ON
         -DGOLDEN_TESTS_OUTPUT_DIR=${{ runner.temp }}/golden_tests
+    - uses: ./.github/actions/cache
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-linux-static-old-local.yml b/.github/workflows/ci-linux-static-old-local.yml
index cf7d46b015..217aed976e 100644
--- a/.github/workflows/ci-linux-static-old-local.yml
+++ b/.github/workflows/ci-linux-static-old-local.yml
@@ -17,7 +17,7 @@ concurrency:
   cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 jobs:
-  build-static:
+  build-static-old-local:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -30,40 +30,14 @@ jobs:
 
     steps:
     - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
-    - name: Set GCC & G++ compiler (on Linux)
-      run: echo "CC=gcc-${{matrix.gcc}}" >> $GITHUB_ENV && echo "CXX=g++-${{matrix.gcc}}" >> $GITHUB_ENV
-    - uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+    - uses: ./.github/actions/setup-linux
       with:
-        python-version: '3.x'
-    - uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1.0.7
-      with:
-        profile: minimal
-        toolchain: stable
-        override: true
-    - name: Install cargo-c (linux)
-      env:
-        LINK: https://github.com/lu-zero/cargo-c/releases/latest/download
-        CARGO_C_FILE: cargo-c-x86_64-unknown-linux-musl.tar.gz
-      run: |
-        curl -L $LINK/$CARGO_C_FILE | tar xz -C ~/.cargo/bin
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-linux-static-old-local-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}
-    - name: Setup cmake
-      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
-      with:
-        # CMake version 3.18 is required to build libxml2.
-        cmake-version: '3.18.x'
-    - name: Print cmake version
-      run: cmake --version
-    - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - run: pip install meson
-    - name: Print ImageMagick version
-      run: convert --version
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+        codec-rav1e: 'LOCAL'
+        gcc-version: ${{ matrix.gcc }}
+        libxml2: 'LOCAL'
+        libyuv: 'LOCAL'
     - name: Prepare libavif (cmake)
       run: >
         mkdir build && cd build
@@ -82,15 +56,9 @@ jobs:
         -DAVIF_ENABLE_EXPERIMENTAL_GAIN_MAP=ON
         -DAVIF_ENABLE_EXPERIMENTAL_MINI=ON
         -DAVIF_ENABLE_WERROR=ON
-    - name: Cache cargo registry
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      continue-on-error: true
+    - uses: ./.github/actions/cache
       with:
-        path: ~/.cargo/registry/cache
-        key: cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-unix-static
-        restore-keys: |
-          cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-
-          cargo-registry-${{ runner.os }}-
+        codec-rav1e: 'LOCAL'
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-unix-shared-installed.yml b/.github/workflows/ci-unix-shared-installed.yml
index 5bacacce4d..26b607cdde 100644
--- a/.github/workflows/ci-unix-shared-installed.yml
+++ b/.github/workflows/ci-unix-shared-installed.yml
@@ -26,38 +26,24 @@ jobs:
 
     steps:
     - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
-    - name: Set GCC & G++ compiler (on Linux)
+    - uses: ./.github/actions/setup-linux
       if: runner.os == 'Linux'
-      run: echo "CC=gcc-${{matrix.gcc}}" >> $GITHUB_ENV && echo "CXX=g++-${{matrix.gcc}}" >> $GITHUB_ENV
+      with:
+        codec-aom: 'SYSTEM'
+        codec-dav1d: 'SYSTEM'
+        codec-rav1e: 'OFF'
+        gcc-version: ${{ matrix.gcc }}
+        libyuv: 'SYSTEM'
+    - uses: ./.github/actions/setup-macos
+      if: runner.os == 'macOS'
+      with:
+        codec-aom: 'SYSTEM'
+        codec-dav1d: 'SYSTEM'
+        codec-rav1e: 'OFF'
     - name: Disable libyuv on macOS
       # TODO(yguyon): Install libyuv (not available with brew).
       if: runner.os == 'macOS'
       run: echo "CMAKE_AVIF_FLAGS=\"-DAVIF_LIBYUV=OFF\""  >> $GITHUB_ENV
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-unix-shared-installed-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}
-    - name: Setup cmake
-      if: runner.os == 'Linux'
-      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
-      with:
-        cmake-version: '3.13.x'
-    - name: Print cmake version
-      run: cmake --version
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - name: Install dependencies (Linux)
-      if: runner.os == 'Linux'
-      run: |
-        echo "deb http://azure.archive.ubuntu.com/ubuntu/ jammy main restricted universe multiverse" | sudo tee -a /etc/apt/sources.list
-        sudo apt-get update
-        sudo apt-get install libaom-dev libdav1d-dev libyuv-dev imagemagick
-    - name: Install dependencies (macOS)
-      if: runner.os == 'macOS'
-      run: brew install aom dav1d imagemagick
-    - name: Print ImageMagick version
-      run: convert --version
 
       # `sudo apt-get install googletest libgtest-dev` leads to the following:
       #   "libgtest.a(gtest-all.cc.o): undefined reference to `std::__throw_bad_array_new_length()'"
@@ -75,6 +61,7 @@ jobs:
         -DAVIF_BUILD_TESTS=ON -DAVIF_ENABLE_GTEST=ON -DAVIF_GTEST=LOCAL
         -DAVIF_BUILD_GDK_PIXBUF=ON -DCMAKE_INSTALL_PREFIX=./install
         -DAVIF_ENABLE_WERROR=ON ${{ env.CMAKE_AVIF_FLAGS }}
+    - uses: ./.github/actions/cache
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-unix-shared-local.yml b/.github/workflows/ci-unix-shared-local.yml
index 34baf261a6..10d25e0484 100644
--- a/.github/workflows/ci-unix-shared-local.yml
+++ b/.github/workflows/ci-unix-shared-local.yml
@@ -31,34 +31,20 @@ jobs:
 
     steps:
     - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
-    - name: Set GCC & G++ compiler (on Linux)
+    - uses: ./.github/actions/setup-linux
       if: runner.os == 'Linux'
-      run: echo "CC=gcc-${{matrix.gcc}}" >> $GITHUB_ENV && echo "CXX=g++-${{matrix.gcc}}" >> $GITHUB_ENV
-    - uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
       with:
-        python-version: '3.x'
-    - name: Install dependencies (macOS)
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+        codec-rav1e: 'LOCAL'
+        gcc-version: ${{ matrix.gcc }}
+        libyuv: ${{ matrix.libyuv }}
+    - uses: ./.github/actions/setup-macos
       if: runner.os == 'macOS'
-      run: brew install imagemagick
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
       with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-${{ matrix.libyuv }}-unix-shared-local-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}
-    - name: Setup cmake
-      if: runner.os == 'Linux'
-      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
-      with:
-        # CMake version 3.17 is required to build libwebp (which libsharpyuv is part of) on macOS.
-        cmake-version: '3.17.x'
-    - name: Print cmake version
-      run: cmake --version
-    - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - run: pip install meson
-    - name: Print ImageMagick version
-      run: convert --version
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+        codec-rav1e: 'LOCAL'
 
     - name: Prepare libavif (cmake)
       run: >
@@ -72,6 +58,7 @@ jobs:
         -DAVIF_BUILD_EXAMPLES=ON -DAVIF_BUILD_APPS=ON
         -DAVIF_BUILD_TESTS=ON -DAVIF_ENABLE_GTEST=ON -DAVIF_GTEST=LOCAL
         -DAVIF_ENABLE_WERROR=ON
+    - uses: ./.github/actions/cache
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-unix-static-av2.yml b/.github/workflows/ci-unix-static-av2.yml
index 97b604ce0a..404578ed78 100644
--- a/.github/workflows/ci-unix-static-av2.yml
+++ b/.github/workflows/ci-unix-static-av2.yml
@@ -30,39 +30,14 @@ jobs:
 
     steps:
     - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
-    - name: Set GCC & G++ compiler (on Linux)
-      if: runner.os == 'Linux'
-      run: echo "CC=gcc-${{matrix.gcc}}" >> $GITHUB_ENV && echo "CXX=g++-${{matrix.gcc}}" >> $GITHUB_ENV
-    - uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+    - uses: ./.github/actions/setup-linux
       with:
-        python-version: '3.x'
-    - uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1.0.7
-      with:
-        profile: minimal
-        toolchain: stable
-        override: true
-    - name: Install cargo-c
-      env:
-        LINK: https://github.com/lu-zero/cargo-c/releases/latest/download
-        CARGO_C_FILE: cargo-c-x86_64-unknown-linux-musl.tar.gz
-      run: |
-        curl -L $LINK/$CARGO_C_FILE | tar xz -C ~/.cargo/bin
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-${{ matrix.also-enable-av1-codec }}-unix-static-av2-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}
-    - name: Setup cmake
-      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
-      with:
-        # CMake version 3.17 is required to build libwebp (which libsharpyuv is part of) on macOS.
-        cmake-version: '3.17.x'
-    - name: Print cmake version
-      run: cmake --version
-    - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - run: pip install meson
+        codec-aom: 'LOCAL'
+        codec-dav1d: ${{ matrix.also-enable-av1-codecs }}
+        codec-rav1e: ${{ matrix.also-enable-av1-codecs }}
+        gcc-version: ${{ matrix.gcc }}
+        libyuv: 'LOCAL'
+        recent-cmake: true
 
     - name: Prepare libavif (cmake)
       run: >
@@ -79,15 +54,9 @@ jobs:
         -DAVIF_BUILD_EXAMPLES=ON -DAVIF_BUILD_APPS=ON
         -DAVIF_BUILD_TESTS=ON -DAVIF_ENABLE_GTEST=ON -DAVIF_GTEST=LOCAL
         -DAVIF_ENABLE_WERROR=ON
-    - name: Cache cargo registry
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      continue-on-error: true
+    - uses: ./.github/actions/cache
       with:
-        path: ~/.cargo/registry/cache
-        key: cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-unix-static-av2
-        restore-keys: |
-          cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-
-          cargo-registry-${{ runner.os }}-
+        codec-rav1e: 'LOCAL'
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-unix-static-sanitized.yml b/.github/workflows/ci-unix-static-sanitized.yml
index dfd42b4dd3..08a1a5aef7 100644
--- a/.github/workflows/ci-unix-static-sanitized.yml
+++ b/.github/workflows/ci-unix-static-sanitized.yml
@@ -26,25 +26,20 @@ jobs:
 
     steps:
       - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
-
-      - name: Setup cmake
+      - uses: ./.github/actions/setup-linux
         if: runner.os == 'Linux'
-        uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
         with:
-          # CMake version 3.17 is required to build libwebp (which libsharpyuv is part of) on macOS.
-          cmake-version: '3.17.x'
-      - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-      - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-      - run: pip install meson
-      - name: Install dependencies (macOS)
+          codec-aom: 'LOCAL'
+          codec-dav1d: 'LOCAL'
+          libyuv: 'LOCAL'
+          recent-cmake: true
+      - uses: ./.github/actions/setup-macos
         if: runner.os == 'macOS'
-        run: brew install aom dav1d imagemagick libpng
-      - name: Cache external dependencies
-        id: cache-ext
-        uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
         with:
-          path: ext, build/_deps
-          key: ${{ runner.os }}-${{ matrix.sanitizer }}-unix-static-sanitized-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}
+          codec-aom: 'LOCAL'
+          codec-dav1d: 'LOCAL'
+          codec-rav1e: 'OFF'
+
       - name: Build aom
         if: steps.cache-ext.outputs.cache-hit != 'true'
         working-directory: ./ext
@@ -93,6 +88,7 @@ jobs:
           CFLAGS: -fsanitize=${{ matrix.sanitizer }}
           CXXFLAGS: -fsanitize=${{ matrix.sanitizer }}
           LDFLAGS: -fsanitize=${{ matrix.sanitizer }}
+      - uses: ./.github/actions/cache
       - name: Build libavif (ninja)
         working-directory: ./build
         run: ninja
diff --git a/.github/workflows/ci-unix-static.yml b/.github/workflows/ci-unix-static.yml
index e5088624b1..6e86d45c80 100644
--- a/.github/workflows/ci-unix-static.yml
+++ b/.github/workflows/ci-unix-static.yml
@@ -31,55 +31,23 @@ jobs:
 
     steps:
     - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
-    - name: Set GCC & G++ compiler (on Linux)
+    - uses: ./.github/actions/setup-linux
       if: runner.os == 'Linux'
-      run: echo "CC=gcc-${{matrix.gcc}}" >> $GITHUB_ENV && echo "CXX=g++-${{matrix.gcc}}" >> $GITHUB_ENV
-    - uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
       with:
-        python-version: '3.x'
-    - uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1.0.7
-      with:
-        profile: minimal
-        toolchain: stable
-        override: true
-    - name: Install dependencies (macOS)
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+        codec-rav1e: 'LOCAL'
+        gcc-version: ${{ matrix.gcc }}
+        libxml2: 'LOCAL'
+        libyuv: 'LOCAL'
+        recent-cmake: true
+    - uses: ./.github/actions/setup-macos
       if: runner.os == 'macOS'
-      run: brew install imagemagick
-    - name: Install cargo-c (linux)
-      if: matrix.os == 'ubuntu-latest'
-      env:
-        LINK: https://github.com/lu-zero/cargo-c/releases/latest/download
-        CARGO_C_FILE: cargo-c-x86_64-unknown-linux-musl.tar.gz
-      run: |
-        curl -L $LINK/$CARGO_C_FILE | tar xz -C ~/.cargo/bin
-    - name: Install cargo-c (mac)
-      if: matrix.os == 'macos-latest'
-      env:
-        LINK: https://github.com/lu-zero/cargo-c/releases/latest/download
-        CARGO_C_FILE: cargo-c-macos.zip
-      run: |
-        curl -sLo $CARGO_C_FILE $LINK/$CARGO_C_FILE
-        unzip -o $CARGO_C_FILE -d ~/.cargo/bin
-        rm $CARGO_C_FILE
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
       with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-${{ matrix.build-type }}-unix-static-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}
-    - name: Setup cmake
-      if: matrix.os == 'ubuntu-latest'
-      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
-      with:
-        # CMake version 3.18 is required to build libxml2.
-        cmake-version: '3.18.x'
-    - name: Print cmake version
-      run: cmake --version
-    - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - run: pip install meson
-    - name: Print ImageMagick version
-      run: convert --version
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+        codec-rav1e: 'LOCAL'
+
     - name: Prepare libavif (cmake)
       run: >
         mkdir build && cd build
@@ -97,15 +65,9 @@ jobs:
         -DAVIF_ENABLE_EXPERIMENTAL_MINI=ON
         -DAVIF_ENABLE_EXPERIMENTAL_SAMPLE_TRANSFORM=ON
         -DAVIF_ENABLE_WERROR=ON
-    - name: Cache cargo registry
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      continue-on-error: true
+    - uses: ./.github/actions/cache
       with:
-        path: ~/.cargo/registry/cache
-        key: cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-unix-static
-        restore-keys: |
-          cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-
-          cargo-registry-${{ runner.os }}-
+        codec-rav1e: 'LOCAL'
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-windows-artifacts.yml b/.github/workflows/ci-windows-artifacts.yml
index ce9d515fd3..cee4aedd7e 100644
--- a/.github/workflows/ci-windows-artifacts.yml
+++ b/.github/workflows/ci-windows-artifacts.yml
@@ -9,7 +9,7 @@ permissions:
   contents: write
 
 jobs:
-  build-static:
+  build-windows-artifacts:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -21,17 +21,11 @@ jobs:
     - name: Setup Visual Studio shell
       if: runner.os == 'Windows'
       uses: egor-tensin/vs-shell@9a932a62d05192eae18ca370155cf877eecc2202 # v2.1
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+    - uses: ./.github/actions/setup-common
       with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}-releasedeps
-    - name: Print cmake version
-      run: cmake --version
-    - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - run: pip install meson
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+
     - name: Build aom
       if: steps.cache-ext.outputs.cache-hit != 'true'
       working-directory: ./ext
@@ -80,6 +74,7 @@ jobs:
         -DAVIF_JPEG=LOCAL -DAVIF_ZLIBPNG=LOCAL
         -DAVIF_BUILD_EXAMPLES=OFF -DAVIF_BUILD_APPS=ON
         -DAVIF_BUILD_TESTS=OFF -DAVIF_ENABLE_WERROR=ON
+    - uses: ./.github/actions/cache
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-windows-installed.yml b/.github/workflows/ci-windows-installed.yml
index 7bfdd95ca1..ea1cb9f04b 100644
--- a/.github/workflows/ci-windows-installed.yml
+++ b/.github/workflows/ci-windows-installed.yml
@@ -25,11 +25,12 @@ jobs:
     - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
     - name: Setup Visual Studio shell
       uses: egor-tensin/vs-shell@9a932a62d05192eae18ca370155cf877eecc2202 # v2.1
-    - name: Print CMake version
-      run: cmake --version
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - name: Print ImageMagick version
-      run: magick --version
+    - uses: ./.github/actions/setup-common
+      with:
+        codec-aom: 'SYSTEM'
+        codec-dav1d: 'SYSTEM'
+        codec-rav1e: 'SYSTEM'
+
     - name: vcpkg build
       uses: johnwason/vcpkg-action@v6
       id: vcpkg
@@ -66,6 +67,7 @@ jobs:
         -DAVIF_ENABLE_EXPERIMENTAL_AVIR=ON
         -DAVIF_ENABLE_EXPERIMENTAL_SAMPLE_TRANSFORM=ON
         -DAVIF_ENABLE_WERROR=ON
+    - uses: ./.github/actions/cache
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja
diff --git a/.github/workflows/ci-windows.yml b/.github/workflows/ci-windows.yml
index 0dba89eaa4..06f1720b35 100644
--- a/.github/workflows/ci-windows.yml
+++ b/.github/workflows/ci-windows.yml
@@ -41,34 +41,12 @@ jobs:
     - name: Setup Visual Studio shell
       if: runner.os == 'Windows'
       uses: egor-tensin/vs-shell@9a932a62d05192eae18ca370155cf877eecc2202 # v2.1
-    - uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+    - uses: ./.github/actions/setup-common
       with:
-        python-version: '3.x'
-    - uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1.0.7
-      with:
-        profile: minimal
-        toolchain: stable
-        override: true
+        codec-aom: 'LOCAL'
+        codec-dav1d: 'LOCAL'
+        codec-rav1e: 'LOCAL'
 
-    - name: Cache external dependencies
-      id: cache-ext
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      with:
-        path: ext, build/_deps
-        key: ${{ runner.os }}-${{ hashFiles('cmake/Modules/*', 'ext/*.cmd', 'ext/*.sh') }}-alldeps
-    - name: Install cargo-c
-      run: |
-        $LINK = "https://github.com/lu-zero/cargo-c/releases/latest/download"
-        $CARGO_C_FILE = "cargo-c-windows-msvc"
-        curl -LO "$LINK/$CARGO_C_FILE.zip"
-        7z e -y "$CARGO_C_FILE.zip" -o"${env:USERPROFILE}\.cargo\bin"
-    - name: Print cmake version
-      run: cmake --version
-    - uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
-    - uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
-    - run: pip install meson
-    - name: Print ImageMagick version
-      run: magick --version
     - name: Build aom
       if: steps.cache-ext.outputs.cache-hit != 'true'
       working-directory: ./ext
@@ -107,14 +85,9 @@ jobs:
         -DAVIF_ENABLE_EXPERIMENTAL_MINI=ON
         -DAVIF_ENABLE_EXPERIMENTAL_SAMPLE_TRANSFORM=ON
         -DAVIF_ENABLE_WERROR=ON
-    - name: Cache cargo registry
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      continue-on-error: true
+    - uses: ./.github/actions/cache
       with:
-        path: ~/.cargo/registry/cache
-        key: cargo-registry-${{ runner.os }}-${{ hashFiles('ext/rav1e/Cargo.lock') }}-
-        restore-keys: |
-          cargo-registry-${{ runner.os }}-
+        codec-rav1e: 'LOCAL'
     - name: Build libavif (ninja)
       working-directory: ./build
       run: ninja