diff --git a/.github/actions/godot-build/action.yml b/.github/actions/godot-build/action.yml
new file mode 100644
index 0000000000..5ed64e7de2
--- /dev/null
+++ b/.github/actions/godot-build/action.yml
@@ -0,0 +1,36 @@
+name: Build Godot
+description: Build Godot with the provided options.
+inputs:
+  target:
+    description: The scons target (debug/release_debug/release).
+    default: "debug"
+  tools:
+    description: If tools are to be built.
+    default: false
+  tests:
+    description: If tests are to be built.
+    default: false
+  platform:
+    description: The Godot platform to build.
+    required: false
+  sconsflags:
+    default: ""
+  scons-cache:
+    description: The scons cache path.
+    default: "${{ github.workspace }}/.scons-cache/"
+  scons-cache-limit:
+    description: The scons cache size limit.
+    default: 4096
+runs:
+  using: "composite"
+  steps:
+    - name: Scons Build
+      shell: sh
+      env:
+          SCONSFLAGS: ${{ inputs.sconsflags }}
+          SCONS_CACHE: ${{ inputs.scons-cache }}
+          SCONS_CACHE_LIMIT: ${{ inputs.scons-cache-limit }}
+      run: |
+        echo "Building with flags:" ${{ env.SCONSFLAGS }}
+        scons p=${{ inputs.platform }} target=${{ inputs.target }} tools=${{ inputs.tools }} tests=${{ inputs.tests }} --jobs=2 ${{ env.SCONSFLAGS }}
+        ls -l bin/
diff --git a/.github/actions/godot-cache/action.yml b/.github/actions/godot-cache/action.yml
new file mode 100644
index 0000000000..db14a0b97a
--- /dev/null
+++ b/.github/actions/godot-cache/action.yml
@@ -0,0 +1,22 @@
+name: Setup Godot build cache
+description: Setup Godot build cache.
+inputs:
+  cache-name:
+    description: The cache base name (job name by default).
+    default: "${{github.job}}"
+  scons-cache:
+    description: The scons cache path.
+    default: "${{github.workspace}}/.scons-cache/"
+runs:
+  using: "composite"
+  steps:
+    # Upload cache on completion and check it out now
+    - name: Load .scons_cache directory
+      uses: actions/cache@v2
+      with:
+        path: ${{inputs.scons-cache}}
+        key: ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
+        restore-keys: |
+          ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
+          ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
+          ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}
diff --git a/.github/actions/godot-deps/action.yml b/.github/actions/godot-deps/action.yml
new file mode 100644
index 0000000000..ee4d7d3751
--- /dev/null
+++ b/.github/actions/godot-deps/action.yml
@@ -0,0 +1,27 @@
+name: Setup python and scons
+description: Setup python, install the pip version of scons.
+inputs:
+  python-version:
+    description: The python version to use.
+    default: "3.x"
+  python-arch:
+    description: The python architecture.
+    default: "x64"
+runs:
+  using: "composite"
+  steps:
+    # Use python 3.x release (works cross platform)
+    - name: Set up Python 3.x
+      uses: actions/setup-python@v2
+      with:
+        # Semantic version range syntax or exact version of a Python version
+        python-version: ${{ inputs.python-version }}
+        # Optional - x64 or x86 architecture, defaults to x64
+        architecture: ${{ inputs.python-arch }}
+
+    - name: Setup scons
+      shell: bash
+      run: |
+        python -c "import sys; print(sys.version)"
+        python -m pip install scons
+        scons --version
diff --git a/.github/actions/upload-artifact/action.yml b/.github/actions/upload-artifact/action.yml
new file mode 100644
index 0000000000..bc1871b914
--- /dev/null
+++ b/.github/actions/upload-artifact/action.yml
@@ -0,0 +1,19 @@
+name: Upload Godot artifact
+description: Upload the Godot artifact.
+inputs:
+  name:
+    description: The artifact name.
+    default: "${{ github.job }}"
+  path:
+    description: The path to upload.
+    required: true
+    default: "bin/*"
+runs:
+  using: "composite"
+  steps:
+    - name: Upload Godot Artifact
+      uses: actions/upload-artifact@v2
+      with:
+        name: ${{ inputs.name }}
+        path: ${{ inputs.path }}
+        retention-days: 14
diff --git a/.github/workflows/android_builds.yml b/.github/workflows/android_builds.yml
index f28a6073d1..ff880cfc45 100644
--- a/.github/workflows/android_builds.yml
+++ b/.github/workflows/android_builds.yml
@@ -4,8 +4,11 @@ on: [push, pull_request]
 # Global Settings
 env:
   GODOT_BASE_BRANCH: 3.x
-  SCONSFLAGS: platform=android verbose=yes warnings=all werror=yes debug_symbols=no --jobs=2
-  SCONS_CACHE_LIMIT: 4096
+  SCONSFLAGS: verbose=yes warnings=all werror=yes debug_symbols=no
+
+concurrency:
+  group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-android
+  cancel-in-progress: true
 
 jobs:
   android-template:
@@ -28,48 +31,35 @@ jobs:
         with:
           java-version: 8
 
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: android-template-cache
-        uses: actions/cache@v2
-        with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
+      - name: Setup Godot build cache
+        uses: ./.github/actions/godot-cache
         continue-on-error: true
 
-      # Use python 3.x release (works cross platform)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
+      - name: Setup python and scons
+        uses: ./.github/actions/godot-deps
+
+      - name: Compilation (armv7)
+        uses: ./.github/actions/godot-build
         with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
+          sconsflags: ${{ env.SCONSFLAGS }} android_arch=armv7
+          platform: android
+          target: release
+          tools: false
 
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
+      - name: Compilation (arm64v8)
+        uses: ./.github/actions/godot-build
+        with:
+          sconsflags: ${{ env.SCONSFLAGS }} android_arch=arm64v8
+          platform: android
+          target: release
+          tools: false
 
-      - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
+      - name: Generate Godot templates
         run: |
-          scons target=release tools=no android_arch=armv7
-          scons target=release tools=no android_arch=arm64v8
           cd platform/android/java
           ./gradlew generateGodotTemplates
           cd ../../..
           ls -l bin/
 
-      - uses: actions/upload-artifact@v2
-        with:
-          name: ${{ github.job }}
-          path: bin/*
-          retention-days: 14
+      - name: Upload artifact
+        uses: ./.github/actions/upload-artifact
diff --git a/.github/workflows/ios_builds.yml b/.github/workflows/ios_builds.yml
index c0fea948a7..2e228b1883 100644
--- a/.github/workflows/ios_builds.yml
+++ b/.github/workflows/ios_builds.yml
@@ -4,8 +4,11 @@ on: [push, pull_request]
 # Global Settings
 env:
   GODOT_BASE_BRANCH: 3.x
-  SCONSFLAGS: platform=iphone verbose=yes warnings=all werror=yes debug_symbols=no --jobs=2
-  SCONS_CACHE_LIMIT: 4096
+  SCONSFLAGS: verbose=yes warnings=all werror=yes debug_symbols=no
+
+concurrency:
+  group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-ios
+  cancel-in-progress: true
 
 jobs:
   ios-template:
@@ -15,45 +18,20 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: ios-template-cache
-        uses: actions/cache@v2
-        with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
+      - name: Setup Godot build cache
+        uses: ./.github/actions/godot-cache
         continue-on-error: true
 
-      # Use python 3.x release (works cross platform)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
+      - name: Setup python and scons
+        uses: ./.github/actions/godot-deps
+
+      - name: Compilation (armv7)
+        uses: ./.github/actions/godot-build
         with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
+          sconsflags: ${{ env.SCONSFLAGS }}
+          platform: iphone
+          target: release
+          tools: false
 
-      # You can test your matrix by printing the current Python version
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
-
-      - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons target=release tools=no
-          ls -l bin/
-
-      - uses: actions/upload-artifact@v2
-        with:
-          name: ${{ github.job }}
-          path: bin/*
-          retention-days: 14
+      - name: Upload artifact
+        uses: ./.github/actions/upload-artifact
diff --git a/.github/workflows/javascript_builds.yml b/.github/workflows/javascript_builds.yml
index 5e8260468f..df26cdd2ab 100644
--- a/.github/workflows/javascript_builds.yml
+++ b/.github/workflows/javascript_builds.yml
@@ -4,10 +4,13 @@ on: [push, pull_request]
 # Global Settings
 env:
   GODOT_BASE_BRANCH: 3.x
-  SCONSFLAGS: platform=javascript verbose=yes warnings=all werror=yes debug_symbols=no --jobs=2
-  SCONS_CACHE_LIMIT: 4096
+  SCONSFLAGS: verbose=yes warnings=all werror=yes debug_symbols=no
   EM_VERSION: 2.0.25
-  EM_CACHE_FOLDER: 'emsdk-cache'
+  EM_CACHE_FOLDER: "emsdk-cache"
+
+concurrency:
+  group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-javascript
+  cancel-in-progress: true
 
 jobs:
   javascript-template:
@@ -17,26 +20,6 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      # Azure repositories are not reliable, we need to prevent azure giving us packages.
-      - name: Make apt sources.list use the default Ubuntu repositories
-        run: |
-          sudo rm -f /etc/apt/sources.list.d/*
-          sudo cp -f misc/ci/sources.list /etc/apt/sources.list
-          sudo apt-get update
-
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: javascript-template-cache
-        uses: actions/cache@v2
-        with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
-        continue-on-error: true
-
       # Additional cache for Emscripten generated system libraries
       - name: Load Emscripten cache
         id: javascript-template-emscripten-cache
@@ -45,23 +28,6 @@ jobs:
           path: ${{env.EM_CACHE_FOLDER}}
           key: ${{env.EM_VERSION}}-${{github.job}}
 
-      # Use python 3.x release (works cross platform)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
-        with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
-
-      # You can test your matrix by printing the current Python version
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
-
       - name: Set up Emscripten latest
         uses: mymindstorm/setup-emsdk@v10
         with:
@@ -72,15 +38,20 @@ jobs:
         run: |
           emcc -v
 
-      - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons target=release tools=no use_closure_compiler=yes
-          ls -l bin/
+      - name: Setup Godot build cache
+        uses: ./.github/actions/godot-cache
+        continue-on-error: true
 
-      - uses: actions/upload-artifact@v2
+      - name: Setup python and scons
+        uses: ./.github/actions/godot-deps
+
+      - name: Compilation
+        uses: ./.github/actions/godot-build
         with:
-          name: ${{ github.job }}
-          path: bin/*
-          retention-days: 14
+          sconsflags: ${{ env.SCONSFLAGS }}
+          platform: javascript
+          target: release
+          tools: false
+
+      - name: Upload artifact
+        uses: ./.github/actions/upload-artifact
diff --git a/.github/workflows/linux_builds.yml b/.github/workflows/linux_builds.yml
index 8cf963a6bb..810c70c988 100644
--- a/.github/workflows/linux_builds.yml
+++ b/.github/workflows/linux_builds.yml
@@ -4,218 +4,129 @@ on: [push, pull_request]
 # Global Settings
 env:
   GODOT_BASE_BRANCH: 3.x
-  SCONSFLAGS: platform=linuxbsd verbose=yes warnings=all werror=yes debug_symbols=no --jobs=2
-  SCONS_CACHE_LIMIT: 4096
+  SCONSFLAGS: verbose=yes warnings=all werror=yes debug_symbols=no
+
+concurrency:
+  group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-linux
+  cancel-in-progress: true
 
 jobs:
-  linux-editor-mono:
+  build-linux:
     runs-on: "ubuntu-20.04"
-    name: Editor w/ Mono (target=release_debug, tools=yes)
+    name: ${{ matrix.name }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - name: Editor w/ Mono (target=release_debug, tools=yes)
+            cache-name: linux-editor-mono
+            target: release_debug
+            tools: true
+            sconsflags: module_mono_enabled=yes mono_glue=no
+            bin: "./bin/godot.x11.opt.tools.64.mono"
+            build-mono: true
+            artifact: true
+
+          - name: Editor and sanitizers (target=debug, tools=yes, use_asan=yes, use_ubsan=yes)
+            cache-name: linux-editor-sanitizers
+            target: debug
+            tools: true
+            sconsflags: use_asan=yes use_ubsan=yes
+            test: true
+            bin: "./bin/godot.x11.tools.64s"
+            build-mono: false
+            # Skip 2GiB artifact speeding up action.
+            artifact: false
+
+          - name: Template w/ Mono (target=release, tools=no)
+            cache-name: linux-template-mono
+            target: release
+            tools: false
+            sconsflags: module_mono_enabled=yes mono_glue=no
+            build-mono: false
+            artifact: true
 
     steps:
       - uses: actions/checkout@v2
 
-      # Azure repositories are not reliable, we need to prevent azure giving us packages.
-      - name: Make apt sources.list use the default Ubuntu repositories
+      - name: Linux dependencies
+        shell: bash
         run: |
+          # Azure repositories are not reliable, we need to prevent azure giving us packages.
           sudo rm -f /etc/apt/sources.list.d/*
           sudo cp -f misc/ci/sources.list /etc/apt/sources.list
           sudo apt-get update
-
-      # Install all packages (except scons)
-      - name: Configure dependencies
-        run: |
-          sudo apt-get install build-essential pkg-config libx11-dev libxcursor-dev xvfb \
-            libxinerama-dev libgl1-mesa-dev libglu-dev libasound2-dev libpulse-dev libudev-dev libxi-dev libxrandr-dev yasm
-
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: linux-editor-cache
-        uses: actions/cache@v2
-        with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
-        continue-on-error: true
-
-      # Use python 3.x release (works cross platform; best to keep self contained in it's own step)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
-        with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
-
-      # Setup scons, print python version and scons version info, so if anything is broken it won't run the build.
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
-
-      # We should always be explicit with our flags usage here since it's gonna be sure to always set those flags
-      - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons tools=yes target=release_debug module_mono_enabled=yes mono_glue=no
-          xvfb-run ./bin/godot.x11.opt.tools.64.mono --generate-mono-glue modules/mono/glue || true
-          scons tools=yes target=release_debug module_mono_enabled=yes mono_glue=yes
-          ls -l bin/
-
-      - uses: actions/upload-artifact@v2
-        with:
-          name: ${{ github.job }}
-          path: bin/*
-          retention-days: 14
-
-  linux-template-mono:
-    runs-on: "ubuntu-20.04"
-    name: Template w/ Mono (target=release, tools=no)
-
-    steps:
-      - uses: actions/checkout@v2
-
-      # Azure repositories are not reliable, we need to prevent azure giving us packages.
-      - name: Make apt sources.list use the default Ubuntu repositories
-        run: |
-          sudo rm -f /etc/apt/sources.list.d/*
-          sudo cp -f misc/ci/sources.list /etc/apt/sources.list
-          sudo apt-get update
-
-      # Install all packages (except scons)
-      - name: Configure dependencies
-        run: |
+          # The actual dependencies
           sudo apt-get install build-essential pkg-config libx11-dev libxcursor-dev \
-            libxinerama-dev libgl1-mesa-dev libglu-dev libasound2-dev libpulse-dev libudev-dev libxi-dev libxrandr-dev yasm
+              libxinerama-dev libgl1-mesa-dev libglu-dev libasound2-dev libpulse-dev \
+              libdbus-1-dev libudev-dev libxi-dev libxrandr-dev yasm xvfb wget unzip
 
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: linux-template-cache
-        uses: actions/cache@v2
+      - name: Setup Godot build cache
+        uses: ./.github/actions/godot-cache
         with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
+          cache-name: ${{ matrix.cache-name }}
         continue-on-error: true
 
-      # Use python 3.x release (works cross platform)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
-        with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
-
-      # You can test your matrix by printing the current Python version
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
+      - name: Setup python and scons
+        uses: ./.github/actions/godot-deps
 
       - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons target=release tools=no module_mono_enabled=yes mono_glue=no
-          ls -l bin/
-
-      - uses: actions/upload-artifact@v2
+        uses: ./.github/actions/godot-build
         with:
-          name: ${{ github.job }}
-          path: bin/*
-          retention-days: 14
+          sconsflags: ${{ env.SCONSFLAGS }} ${{ matrix.sconsflags }}
+          platform: linuxbsd
+          target: ${{ matrix.target }}
+          tools: ${{ matrix.tools }}
 
-  linux-editor-sanitizers:
-    runs-on: "ubuntu-20.04"
-    name: Editor and exported project with sanitizers (target=debug/release, tools=yes/no, use_ubsan=yes, use_asan=yes)
-
-    steps:
-      - uses: actions/checkout@v2
-
-      # Azure repositories are not reliable, we need to prevent azure giving us packages.
-      - name: Make apt sources.list use the default Ubuntu repositories
+      # Generate mono glue
+      - name: Generate Mono glue code
+        if: ${{ matrix.build-mono }}
         run: |
-          sudo rm -f /etc/apt/sources.list.d/*
-          sudo cp -f misc/ci/sources.list /etc/apt/sources.list
-          sudo apt-get update
+          DRI_PRIME=0 xvfb-run ${{ matrix.bin }} --generate-mono-glue modules/mono/glue || true
 
-      # Install all packages (except scons)
-      - name: Configure dependencies
-        run: |
-          sudo apt-get install build-essential pkg-config libx11-dev libxcursor-dev \
-            libxinerama-dev libgl1-mesa-dev libglu-dev libasound2-dev libpulse-dev libudev-dev libxi-dev libxrandr-dev yasm \
-            xvfb wget2 unzip
-
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: linux-sanitizer-cache
-        uses: actions/cache@v2
+      # Rebuild with mono
+      - name: Compilation (mono_glue=yes)
+        uses: ./.github/actions/godot-build
+        if: ${{ matrix.build-mono }}
         with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
-        continue-on-error: true
+          sconsflags: ${{ env.SCONSFLAGS }} ${{ matrix.sconsflags }} mono_glue=yes
+          platform: linuxbsd
+          target: ${{ matrix.target }}
+          tools: ${{ matrix.tools }}
 
-      # Use python 3.x release (works cross platform; best to keep self contained in it's own step)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
-        with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
-
-      # Setup scons, print python version and scons version info, so if anything is broken it won't run the build.
-      - name: Configuring Python packages
+      # Download and extract zip archive with project, folder is renamed to be able to easy change used project
+      - name: Download test project
+        if: ${{ matrix.test }}
         run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
-
-      # We should always be explicit with our flags usage here since it's gonna be sure to always set those flags
-      - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons tools=yes target=debug use_asan=yes use_ubsan=yes
-          ls -l bin/
-
-      # Download and test project to check leaks and invalid memory usage.
-      # CI has no audio device, so use the Dummy audio driver to avoid spurious error messages.
-      - name: Importing and running project project
-        run: |
-          wget2 https://github.com/qarmin/RegressionTestProject/archive/3.x.zip
+          wget https://github.com/qarmin/RegressionTestProject/archive/3.x.zip
           unzip 3.x.zip
           mv "RegressionTestProject-3.x" "test_project"
 
-          echo "----- Open editor to check for memory leaks -----"
-          DRI_PRIME=0 xvfb-run bin/godot.x11.tools.64s --audio-driver Dummy -e -q --path test_project 2>&1 | tee sanitizers_log.txt || true
+      # Editor is quite complicated piece of software, so it is easy to introduce bug here
+      - name: Open and close editor
+        if: ${{ matrix.test }}
+        run: |
+          DRI_PRIME=0 xvfb-run ${{ matrix.bin }} --audio-driver Dummy -e -q --path test_project 2>&1 | tee sanitizers_log.txt || true
           misc/scripts/check_ci_log.py sanitizers_log.txt
 
-          echo "----- Run and test project -----"
-          DRI_PRIME=0 xvfb-run bin/godot.x11.tools.64s 30 --video-driver GLES3 --audio-driver Dummy --path test_project 2>&1 | tee sanitizers_log.txt || true
+      # Run test project
+      - name: Run project
+        if: ${{ matrix.test }}
+        run: |
+          DRI_PRIME=0 xvfb-run ${{ matrix.bin }} 30 --video-driver GLES3 --audio-driver Dummy --path test_project 2>&1 | tee sanitizers_log.txt || true
           misc/scripts/check_ci_log.py sanitizers_log.txt
 
       # Check class reference
       - name: Check for class reference updates
+        if: ${{ matrix.test }}
         run: |
           echo "Running --doctool to see if this changes the public API without updating the documentation."
           echo -e "If a diff is shown, it means that your code/doc changes are incomplete and you should update the class reference with --doctool.\n\n"
-          DRI_PRIME=0 xvfb-run bin/godot.x11.tools.64s --doctool . 2>&1 > /dev/null || true
-          git diff --color --exit-code
+          DRI_PRIME=0 xvfb-run ${{ matrix.bin }} --doctool . 2>&1 > /dev/null || true
+          git diff --color --exit-code && ! git ls-files --others --exclude-standard | sed -e 's/^/New doc file missing in PR: /' | grep 'xml$'
+
+      - name: Upload artifact
+        uses: ./.github/actions/upload-artifact
+        if: ${{ matrix.artifact }}
+        with:
+          name: ${{ matrix.cache-name }}
diff --git a/.github/workflows/macos_builds.yml b/.github/workflows/macos_builds.yml
index 6760b5819b..cab505cd27 100644
--- a/.github/workflows/macos_builds.yml
+++ b/.github/workflows/macos_builds.yml
@@ -4,108 +4,52 @@ on: [push, pull_request]
 # Global Settings
 env:
   GODOT_BASE_BRANCH: 3.x
-  SCONSFLAGS: platform=osx verbose=yes warnings=all werror=yes debug_symbols=no --jobs=2
-  SCONS_CACHE_LIMIT: 4096
+  SCONSFLAGS: verbose=yes warnings=all werror=yes debug_symbols=no
+
+concurrency:
+  group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-macos
+  cancel-in-progress: true
 
 jobs:
-  macos-editor:
+  build-macos:
     runs-on: "macos-latest"
+    name: ${{ matrix.name }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - name: Editor (target=release_debug, tools=yes)
+            cache-name: macos-editor
+            target: release_debug
+            tools: true
+            bin: "./bin/godot.osx.opt.tools.64"
 
-    name: Editor (target=release_debug, tools=yes)
+          - name: Template (target=release, tools=no)
+            cache-name: macos-template
+            target: release
+            tools: false
 
     steps:
       - uses: actions/checkout@v2
 
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: macos-editor-cache
-        uses: actions/cache@v2
+      - name: Setup Godot build cache
+        uses: ./.github/actions/godot-cache
         with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
+          cache-name: ${{ matrix.cache-name }}
         continue-on-error: true
 
-      # Use python 3.x release (works cross platform; best to keep self contained in it's own step)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
-        with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
-
-      # Setup scons, print python version and scons version info, so if anything is broken it won't run the build.
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
-
-      # We should always be explicit with our flags usage here since it's gonna be sure to always set those flags
-      - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons tools=yes target=release_debug
-          ls -l bin/
-
-      - uses: actions/upload-artifact@v2
-        with:
-          name: ${{ github.job }}
-          path: bin/*
-          retention-days: 14
-
-  macos-template:
-    runs-on: "macos-latest"
-    name: Template (target=release, tools=no)
-
-    steps:
-      - uses: actions/checkout@v2
-
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: macos-template-cache
-        uses: actions/cache@v2
-        with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
-        continue-on-error: true
-
-      # Use python 3.x release (works cross platform)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
-        with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
-
-      # You can test your matrix by printing the current Python version
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
+      - name: Setup python and scons
+        uses: ./.github/actions/godot-deps
 
       - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons target=release tools=no
-          ls -l bin/
-
-      - uses: actions/upload-artifact@v2
+        uses: ./.github/actions/godot-build
         with:
-          name: ${{ github.job }}
-          path: bin/*
-          retention-days: 14
+          sconsflags: ${{ env.SCONSFLAGS }}
+          platform: osx
+          target: ${{ matrix.target }}
+          tools: ${{ matrix.tools }}
+
+      - name: Upload artifact
+        uses: ./.github/actions/upload-artifact
+        with:
+          name: ${{ matrix.cache-name }}
diff --git a/.github/workflows/server_builds.yml b/.github/workflows/server_builds.yml
index e8da9b722a..a223b84e69 100644
--- a/.github/workflows/server_builds.yml
+++ b/.github/workflows/server_builds.yml
@@ -1,120 +1,61 @@
 name: ☁ Server Builds
 on: [push, pull_request]
 
-# Global Cache Settings
+# Global Settings
 env:
   GODOT_BASE_BRANCH: 3.x
-  SCONSFLAGS: platform=server verbose=yes warnings=all werror=yes debug_symbols=no --jobs=2
-  SCONS_CACHE_LIMIT: 4096
+  SCONSFLAGS: verbose=yes warnings=all werror=yes debug_symbols=no module_mono_enabled=yes mono_glue=no
+
+concurrency:
+  group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-server
+  cancel-in-progress: true
 
 jobs:
-  linux-editor:
+  build-server:
     runs-on: "ubuntu-20.04"
-    name: Linux Headless w/ Mono (target=release_debug, tools=yes)
+    name: ${{ matrix.name }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - name: Linux Headless w/ Mono (target=release_debug, tools=yes)
+            cache-name: server-editor-mono
+            target: release_debug
+            tools: true
+
+          - name: Linux Server w/ Mono (target=release, tools=no)
+            cache-name: server-template-mono
+            target: release
+            tools: false
 
     steps:
       - uses: actions/checkout@v2
 
-      # Azure repositories are not reliable, we need to prevent azure giving us packages.
-      - name: Make apt sources.list use the default Ubuntu repositories
+      - name: Linux dependencies
+        shell: bash
         run: |
+          # Azure repositories are not reliable, we need to prevent azure giving us packages.
+          sudo rm -f /etc/apt/sources.list.d/*
           sudo cp -f misc/ci/sources.list /etc/apt/sources.list
           sudo apt-get update
-
-      # Install all packages (except scons)
-      - name: Configure dependencies
-        run: |
+          # The actual dependencies
           sudo apt-get install build-essential pkg-config libx11-dev libxcursor-dev \
-            libxinerama-dev libgl1-mesa-dev libglu-dev libasound2-dev libpulse-dev libudev-dev libxi-dev libxrandr-dev yasm
+              libxinerama-dev libgl1-mesa-dev libglu-dev libasound2-dev libpulse-dev \
+              libdbus-1-dev libudev-dev libxi-dev libxrandr-dev yasm xvfb wget unzip
 
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: linux-headless-cache
-        uses: actions/cache@v2
+      - name: Setup Godot build cache
+        uses: ./.github/actions/godot-cache
         with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
+          cache-name: ${{ matrix.cache-name }}
         continue-on-error: true
 
-      # Use python 3.x release (works cross platform; best to keep self contained in it's own step)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
-        with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
-
-      # Setup scons, print python version and scons version info, so if anything is broken it won't run the build.
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
-
-      # We should always be explicit with our flags usage here since it's gonna be sure to always set those flags
-      - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons -j2 verbose=yes warnings=all werror=yes platform=server tools=yes target=release_debug module_mono_enabled=yes mono_glue=no
-
-  linux-server:
-    runs-on: "ubuntu-20.04"
-    name: Linux Server w/ Mono (target=release, tools=no)
-
-    steps:
-      - uses: actions/checkout@v2
-
-      # Azure repositories are not reliable, we need to prevent azure giving us packages.
-      - name: Make apt sources.list use the default Ubuntu repositories
-        run: |
-          sudo cp -f misc/ci/sources.list /etc/apt/sources.list
-          sudo apt-get update
-
-      # Install all packages (except scons)
-      - name: Configure dependencies
-        run: |
-          sudo apt-get install build-essential pkg-config libx11-dev libxcursor-dev \
-            libxinerama-dev libgl1-mesa-dev libglu-dev libasound2-dev libpulse-dev libudev-dev libxi-dev libxrandr-dev yasm
-
-      # Upload cache on completion and check it out now
-      - name: Load .scons_cache directory
-        id: linux-server-cache
-        uses: actions/cache@v2
-        with:
-          path: ${{github.workspace}}/.scons_cache/
-          key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          restore-keys: |
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-            ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
-        continue-on-error: true
-
-      # Use python 3.x release (works cross platform)
-      - name: Set up Python 3.x
-        uses: actions/setup-python@v2
-        with:
-          # Semantic version range syntax or exact version of a Python version
-          python-version: '3.x'
-          # Optional - x64 or x86 architecture, defaults to x64
-          architecture: 'x64'
-
-      # You can test your matrix by printing the current Python version
-      - name: Configuring Python packages
-        run: |
-          python -c "import sys; print(sys.version)"
-          python -m pip install scons
-          python --version
-          scons --version
+      - name: Setup python and scons
+        uses: ./.github/actions/godot-deps
 
       - name: Compilation
-        env:
-          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
-        run: |
-          scons -j2 target=release tools=no module_mono_enabled=yes mono_glue=no
+        uses: ./.github/actions/godot-build
+        with:
+          sconsflags: ${{ env.SCONSFLAGS }} ${{ matrix.sconsflags }}
+          platform: server
+          target: ${{ matrix.target }}
+          tools: ${{ matrix.tools }}
diff --git a/.github/workflows/windows_builds.yml b/.github/workflows/windows_builds.yml
index 9b1e4cee1c..041fe837f4 100644
--- a/.github/workflows/windows_builds.yml
+++ b/.github/workflows/windows_builds.yml
@@ -5,113 +5,56 @@ on: [push, pull_request]
 # SCONS_CACHE for windows must be set in the build environment
 env:
   GODOT_BASE_BRANCH: 3.x
-  SCONSFLAGS: platform=windows verbose=yes warnings=all werror=yes debug_symbols=no --jobs=2
+  SCONSFLAGS: verbose=yes warnings=all werror=yes debug_symbols=no
   SCONS_CACHE_MSVC_CONFIG: true
-  SCONS_CACHE_LIMIT: 4096
+
+concurrency:
+  group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-windows
+  cancel-in-progress: true
 
 jobs:
-  windows-editor:
+  build-windows:
     # Windows 10 with latest image
     runs-on: "windows-latest"
+    name: ${{ matrix.name }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - name: Editor (target=release_debug, tools=yes)
+            cache-name: windows-editor
+            target: release_debug
+            tools: true
+            bin: "./bin/godot.windows.opt.tools.64.exe"
 
-    # Windows Editor - checkout with the plugin
-    name: Editor (target=release_debug, tools=yes)
+          - name: Template (target=release, tools=no)
+            cache-name: windows-template
+            target: release
+            tools: false
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-      # Upload cache on completion and check it out now
-      # Editing this is pretty dangerous for Windows since it can break and needs to be properly tested with a fresh cache.
-    - name: Load .scons_cache directory
-      id: windows-editor-cache
-      uses: actions/cache@v2
-      with:
-        path: /.scons_cache/
-        key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-        restore-keys: |
-          ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-          ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
-      continue-on-error: true
+      - name: Setup Godot build cache
+        uses: ./.github/actions/godot-cache
+        with:
+          cache-name: ${{ matrix.cache-name }}
+        continue-on-error: true
 
-    # Use python 3.x release (works cross platform; best to keep self contained in it's own step)
-    - name: Set up Python 3.x
-      uses: actions/setup-python@v2
-      with:
-        # Semantic version range syntax or exact version of a Python version
-        python-version: '3.x'
-        # Optional - x64 or x86 architecture, defaults to x64
-        architecture: 'x64'
 
-    # Setup scons, print python version and scons version info, so if anything is broken it won't run the build.
-    - name: Configuring Python packages
-      run: |
-        python -c "import sys; print(sys.version)"
-        python -m pip install scons
-        python --version
-        scons --version
+      - name: Setup python and scons
+        uses: ./.github/actions/godot-deps
 
-    # We should always be explicit with our flags usage here since it's gonna be sure to always set those flags
-    - name: Compilation
-      env:
-        SCONS_CACHE: /.scons_cache/
-      run: |
-        scons tools=yes target=release_debug
-        ls -l bin/
+      - name: Compilation
+        uses: ./.github/actions/godot-build
+        with:
+          sconsflags: ${{ env.SCONSFLAGS }}
+          platform: windows
+          target: ${{ matrix.target }}
+          tools: ${{ matrix.tools }}
+          scons-cache-limit: 3072
 
-    - uses: actions/upload-artifact@v2
-      with:
-        name: ${{ github.job }}
-        path: bin/*
-        retention-days: 14
-
-  windows-template:
-    runs-on: "windows-latest"
-    name: Template (target=release, tools=no)
-
-    steps:
-    - uses: actions/checkout@v2
-
-    # Upload cache on completion and check it out now
-    # Editing this is pretty dangerous for Windows since it can break and needs to be properly tested with a fresh cache.
-    - name: Load .scons_cache directory
-      id: windows-template-cache
-      uses: RevoluPowered/cache@v2.1
-      with:
-        path: /.scons_cache/
-        key: ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-        restore-keys: |
-          ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          ${{github.job}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-          ${{github.job}}-${{env.GODOT_BASE_BRANCH}}
-      continue-on-error: true
-
-    # Use python 3.x release (works cross platform)
-    - name: Set up Python 3.x
-      uses: actions/setup-python@v2
-      with:
-        # Semantic version range syntax or exact version of a Python version
-        python-version: '3.x'
-        # Optional - x64 or x86 architecture, defaults to x64
-        architecture: 'x64'
-
-    # You can test your matrix by printing the current Python version
-    - name: Configuring Python packages
-      run: |
-        python -c "import sys; print(sys.version)"
-        python -m pip install scons
-        python --version
-        scons --version
-
-    - name: Compilation
-      env:
-        SCONS_CACHE: /.scons_cache/
-      run: |
-        scons target=release tools=no
-        ls -l bin/
-
-    - uses: actions/upload-artifact@v2
-      with:
-        name: ${{ github.job }}
-        path: bin/*
-        retention-days: 14
+      - name: Upload artifact
+        uses: ./.github/actions/upload-artifact
+        with:
+          name: ${{ matrix.cache-name }}