diff --git a/.github/dependabot.yml b/.github/dependabot.yml
deleted file mode 100644
index 6ed7037323e13..0000000000000
--- a/.github/dependabot.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-# See Dependabot documentation for all configuration options:
-# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
-
-version: 2
-updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-    groups:
-      all-github-actions:
-        patterns: [ "*" ]
-    reviewers:
-      - "christopherfujino"
-      - "jmagman"
-    labels:
-      - "team"
-      - "team-infra"
-      - "autosubmit"
-    ignore:
-      - dependency-name: "codecov/codecov-action"
-        update-types: ["version-update:semver-patch"]
diff --git a/.github/workflows/build-docker.yml b/.github/workflows/build-docker.yml
new file mode 100644
index 0000000000000..62267c3bbf820
--- /dev/null
+++ b/.github/workflows/build-docker.yml
@@ -0,0 +1,21 @@
+name: Build Docker
+
+on: [workflow_dispatch]
+
+jobs:
+  builder:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-buildx-action@v3
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/build-push-action@v5
+        with:
+          context: ci/tizen
+          file: ci/tizen/Dockerfile
+          push: true
+          tags: ghcr.io/${{ github.repository_owner }}/build-engine:latest
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000000000..5949eaed02814
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,311 @@
+name: Build
+
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/flutter-tizen/build-engine:latest
+      credentials:
+        username: ${{ github.repository_owner }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    strategy:
+      matrix:
+        arch: [arm, arm64, x86]
+        mode: [debug, release, profile]
+        include:
+          - arch: arm
+            triple: arm-linux-gnueabi
+          - arch: arm64
+            triple: aarch64-linux-gnu
+          - arch: x86
+            triple: i686-linux-gnu
+        exclude:
+          - arch: x86
+            mode: release
+          - arch: x86
+            mode: profile
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: flutter
+          fetch-depth: 1
+
+      - uses: actions/cache@v4
+        with:
+          path: /tizen_tools/sysroot
+          key: sysroot
+
+      - name: Install depot_tools
+        run: |
+          git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
+          echo "$PWD/depot_tools" >> $GITHUB_PATH
+          export PATH="$PWD/depot_tools:$PATH"
+          # Install ninja
+          apt install ninja-build
+
+      - name: Run gclient sync
+        run: |
+          cd flutter
+          gclient config --unmanaged https://github.com/jsuya/flutter
+          sed -i "s/'flutter'/'.'/g" ./.gclient
+          gclient setdep --var=download_dart_sdk=False --var=download_android_deps=False --var=download_fuchsia_deps=False --deps-file=DEPS
+          gclient sync -v --no-history --shallow
+
+      - name: Generate sysroot
+        run: flutter/engine/src/flutter/ci/tizen/generate_sysroot.py --out /tizen_tools/sysroot
+
+      - name: Build
+        run: |
+          cd flutter
+          # Ignore unsupported linker option.
+          sed -i "/-Wl,--undefined-version/d" engine/src/build/config/compiler/BUILD.gn
+
+          engine/src/flutter/tools/gn \
+            --target-os linux \
+            --linux-cpu ${{ matrix.arch }} \
+            --no-goma \
+            --target-toolchain /tizen_tools/toolchains \
+            --target-sysroot /tizen_tools/sysroot/${{ matrix.arch }} \
+            --target-triple ${{ matrix.triple }} \
+            --runtime-mode ${{ matrix.mode }} \
+            --enable-fontconfig \
+            --disable-desktop-embeddings \
+            --target-dir build
+          cd engine/src
+          ninja -C out/build flutter_engine_library
+          cp -f flutter/third_party/icu/flutter/icudtl.dat out/build
+
+      - name: Build gen_snapshot
+        if: ${{ matrix.mode != 'debug' }}
+        run: |
+          cd flutter
+          ninja -C engine/src/out/build clang_x64/gen_snapshot
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: tizen-${{ matrix.arch }}-${{ matrix.mode }}
+          path: |
+            flutter/engine/src/out/build/libflutter_engine.so
+            flutter/engine/src/out/build/icudtl.dat
+          if-no-files-found: error
+
+      - uses: actions/upload-artifact@v4
+        if: ${{ github.event_name == 'push' }}
+        with:
+          name: tizen-${{ matrix.arch }}-${{ matrix.mode }}_symbols
+          path: flutter/engine/src/out/build/so.unstripped/libflutter_engine.so
+          if-no-files-found: error
+
+      - uses: actions/upload-artifact@v4
+        if: ${{ matrix.mode != 'debug' }}
+        with:
+          name: tizen-${{ matrix.arch }}-${{ matrix.mode }}_linux-x64
+          path: flutter/engine/src/out/build/clang_x64/gen_snapshot
+          if-no-files-found: error
+
+  windows-build:
+    runs-on: windows-latest
+
+    strategy:
+      matrix:
+        arch: [arm, arm64]
+        mode: [release, profile]
+
+    steps:
+      - name: Run git checkout
+        run: |
+          mkdir C:\workspace\flutter
+          cd C:\workspace\flutter
+          git config --global core.autocrlf true
+          git init --quiet
+          git remote add origin https://github.com/${{ github.repository }}
+          git fetch --depth 1 origin ${{ github.sha }}
+          git checkout FETCH_HEAD
+
+      - name: Environment setup
+        run: |
+          Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem" -Name "LongPathsEnabled" -Value 1 -Force
+          echo "DEPOT_TOOLS_WIN_TOOLCHAIN=0" >> $Env:GITHUB_ENV
+          echo "GYP_MSVS_OVERRIDE_PATH=C:\Program Files\Microsoft Visual Studio\2022\Enterprise" >> $Env:GITHUB_ENV
+          echo "WINDOWSSDKDIR=C:\Program Files (x86)\Windows Kits\10" >> $Env:GITHUB_ENV
+
+      - name: Install depot_tools
+        run: |
+          Invoke-WebRequest -Uri https://storage.googleapis.com/chrome-infra/depot_tools.zip -OutFile depot_tools.zip
+          7z x -y -o"C:\workspace\depot_tools" .\depot_tools.zip
+          echo "C:\workspace\depot_tools" >> $Env:GITHUB_PATH
+
+      - name: Run gclient sync
+        working-directory: C:\workspace\flutter
+        shell: powershell
+        run: |
+          gclient config --unmanaged https://github.com/jsuya/flutter
+          cat .gclient | %{$_ -replace "'flutter'","'.'"}
+          gclient setdep --var=download_dart_sdk=False --var=download_android_deps=False --var=download_fuchsia_deps=False --deps-file=DEPS
+          gclient sync -v --no-history --shallow
+
+      - name: Build
+        working-directory: C:\workspace\flutter\engine\src
+        run: |
+          python3 .\flutter\tools\gn `
+            --linux `
+            --linux-cpu=${{ matrix.arch }} `
+            --runtime-mode=${{ matrix.mode }} `
+            --no-goma `
+            --target-dir build
+          # TODO(jsuya) : https://github.com/flutter/flutter/issues/163487
+          C:\workspace\flutter\engine\src\flutter/third_party/ninja/ninja -C .\out\build gen_snapshot
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: tizen-${{ matrix.arch }}-${{ matrix.mode }}_windows-x64
+          path: C:\workspace\flutter\engine\src\out\build\gen_snapshot.exe
+          if-no-files-found: error
+
+  macos-build:
+    runs-on: macos-latest
+
+    strategy:
+      matrix:
+        arch: [arm, arm64]
+        mode: [release, profile]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: flutter
+          fetch-depth: 1
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install depot_tools
+        run: |
+          git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
+          echo "$PWD/depot_tools" >> $GITHUB_PATH
+
+      - name: Run gclient sync
+        run: |
+          cd flutter
+          gclient config --unmanaged https://github.com/jsuya/flutter
+          sed -i '' "s/'flutter'/'.'/g" .gclient
+          gclient setdep --var=download_dart_sdk=False --var=download_android_deps=False --var=download_fuchsia_deps=False --deps-file=DEPS
+          gclient sync -v --no-history --shallow
+
+      - name: Build
+        run: |
+          cd flutter
+          # Change host_toolchain to mac/clang_arm64.
+          sed -i "" "s|//build/toolchain/linux:clang_$host_cpu|//build/toolchain/mac:clang_$host_cpu|g" engine/src/build/config/BUILDCONFIG.gn
+
+          # Pass dummy values to prevent using the default (Linux) toolchain.
+          engine/src/flutter/tools/gn \
+            --linux \
+            --linux-cpu=${{ matrix.arch }} \
+            --no-goma \
+            --target-toolchain _ \
+            --target-sysroot _ \
+            --target-triple _ \
+            --runtime-mode=${{ matrix.mode }} \
+            --disable-desktop-embeddings \
+            --target-dir build
+          cd engine/src
+          # TODO(jsuya) : https://github.com/flutter/flutter/issues/163487
+          flutter/third_party/ninja/ninja -C out/build clang_arm64/gen_snapshot
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: tizen-${{ matrix.arch }}-${{ matrix.mode }}_darwin-arm64
+          path: flutter/engine/src/out/build/clang_arm64/gen_snapshot
+          if-no-files-found: error
+
+  macos-intel-build:
+    runs-on: macos-13
+
+    strategy:
+      matrix:
+        arch: [arm, arm64]
+        mode: [release, profile]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: flutter
+          fetch-depth: 1
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install depot_tools
+        run: |
+          git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
+          echo "$PWD/depot_tools" >> $GITHUB_PATH
+
+      - name: Run gclient sync
+        run: |
+          cd flutter
+          gclient config --unmanaged https://github.com/jsuya/flutter
+          sed -i '' "s/'flutter'/'.'/g" .gclient
+          gclient setdep --var=download_dart_sdk=False --var=download_android_deps=False --var=download_fuchsia_deps=False --deps-file=DEPS
+          gclient sync -v --no-history --shallow
+
+      - name: Build
+        run: |
+          cd flutter
+          # Change host_toolchain to mac/clang_x64.
+          sed -i "" "s|//build/toolchain/linux:clang_$host_cpu|//build/toolchain/mac:clang_$host_cpu|g" engine/src/build/config/BUILDCONFIG.gn
+
+          # Pass dummy values to prevent using the default (Linux) toolchain.
+          engine/src/flutter/tools/gn \
+            --linux \
+            --linux-cpu=${{ matrix.arch }} \
+            --no-goma \
+            --target-toolchain _ \
+            --target-sysroot _ \
+            --target-triple _ \
+            --runtime-mode=${{ matrix.mode }} \
+            --disable-desktop-embeddings \
+            --target-dir build
+          cd engine/src
+          # TODO(jsuya) : https://github.com/flutter/flutter/issues/163487
+          flutter/third_party/ninja/ninja -C out/build clang_x64/gen_snapshot
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: tizen-${{ matrix.arch }}-${{ matrix.mode }}_darwin-x64
+          path: flutter/engine/src/out/build/clang_x64/gen_snapshot
+          if-no-files-found: error
+
+  release:
+    needs: [build]
+    if: ${{ github.event_name == 'push' }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/download-artifact@v4
+
+      - name: Create archives
+        run: |
+          for name in tizen-*; do
+            7z a $name.zip ./$name/*
+          done
+
+      - name: Set variables
+        run: |
+          echo "SHORT_SHA=$(git rev-parse --short $GITHUB_SHA)" >> $GITHUB_ENV
+          echo "VERSION=$(echo "${{ github.ref_name }}" | cut -d'-' -f2)" >> $GITHUB_ENV
+
+      - uses: softprops/action-gh-release@v2
+        with:
+          name: ${{ env.VERSION }} (${{ env.SHORT_SHA }})
+          tag_name: ${{ env.SHORT_SHA }}
+          target_commitish: ${{ github.sha }}
+          files: tizen-*.zip
+          body: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}
diff --git a/DEPS b/DEPS
index b8b479d1d0579..a49493fbe7819 100644
--- a/DEPS
+++ b/DEPS
@@ -122,7 +122,7 @@ vars = {
   "checkout_llvm": False,
 
   # Setup Git hooks by default.
-  'setup_githooks': True,
+  'setup_githooks': False,
 
   # When this is true, the Flutter Engine's configuration files and scripts for
   # RBE will be downloaded from CIPD. This option is only usable by Googlers.
diff --git a/engine/src/flutter/ci/tizen/.gitignore b/engine/src/flutter/ci/tizen/.gitignore
new file mode 100644
index 0000000000000..c23e7e850155f
--- /dev/null
+++ b/engine/src/flutter/ci/tizen/.gitignore
@@ -0,0 +1,3 @@
+/llvm-project*/
+/toolchains*/
+/sysroot/
diff --git a/engine/src/flutter/ci/tizen/Dockerfile b/engine/src/flutter/ci/tizen/Dockerfile
new file mode 100644
index 0000000000000..f5d0f1fc5520f
--- /dev/null
+++ b/engine/src/flutter/ci/tizen/Dockerfile
@@ -0,0 +1,32 @@
+###############################
+### Stage for building LLVM ###
+###############################
+
+FROM ubuntu:22.04 AS llvm
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && \
+    apt-get install -y git zip build-essential cmake ninja-build clang-11 && \
+    apt-get clean
+
+COPY build_llvm.sh .
+
+RUN /build_llvm.sh
+
+
+##############################
+### Create a release image ###
+##############################
+
+FROM ubuntu:22.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && \
+    apt-get install -y binutils-arm-linux-gnueabi binutils-aarch64-linux-gnu binutils-i686-linux-gnu && \
+    apt-get install -y git curl pkg-config ca-certificates python3 python3-pip rpm2cpio cpio && \
+    apt-get clean
+
+# Copy build artifacts from the previous stage.
+COPY --from=llvm /toolchains/ /tizen_tools/toolchains/
diff --git a/engine/src/flutter/ci/tizen/arm.patch b/engine/src/flutter/ci/tizen/arm.patch
new file mode 100644
index 0000000000000..1dabb3f2803d4
--- /dev/null
+++ b/engine/src/flutter/ci/tizen/arm.patch
@@ -0,0 +1,15 @@
+diff --git a/usr/include/asm-arm/hwcap.h b/usr/include/asm-arm/hwcap.h
+index da85060..adaf619 100644
+--- a/usr/include/asm-arm/hwcap.h
++++ b/usr/include/asm-arm/hwcap.h
+@@ -26,5 +26,10 @@
+ #define HWCAP_VFPD32	(1 << 19)	/* set if VFP has 32 regs (not 16) */
+ #define HWCAP_IDIV	(HWCAP_IDIVA | HWCAP_IDIVT)
+ 
++#define HWCAP2_AES      (1 << 0)
++#define HWCAP2_PMULL    (1 << 1)
++#define HWCAP2_SHA1     (1 << 2)
++#define HWCAP2_SHA2     (1 << 3)
++#define HWCAP2_CRC32    (1 << 4)
+ 
+ #endif /* __ASMARM_HWCAP_H */
diff --git a/engine/src/flutter/ci/tizen/build_llvm.sh b/engine/src/flutter/ci/tizen/build_llvm.sh
new file mode 100755
index 0000000000000..507395cea8363
--- /dev/null
+++ b/engine/src/flutter/ci/tizen/build_llvm.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+# Copyright 2022 Samsung Electronics Co., Ltd. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+set -e
+
+SCRIPT_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"
+OUTPUT_DIR="$SCRIPT_DIR/toolchains"
+cd "$SCRIPT_DIR"
+
+# Check out the LLVM project source code.
+if [ -d llvm-project ]; then
+  echo "The directory already exists. Skipping download."
+  cd llvm-project
+else
+  mkdir llvm-project
+  cd llvm-project
+  git init
+  git remote add origin https://github.com/llvm/llvm-project.git
+  git fetch --depth=1 origin llvmorg-17.0.6
+  git checkout FETCH_HEAD
+fi
+
+# Run the ninja build.
+mkdir -p build && cd build
+cmake -G Ninja \
+  -DCLANG_VENDOR="Tizen" \
+  -DLLVM_ENABLE_PROJECTS="clang" \
+  -DLLVM_TARGETS_TO_BUILD="X86;ARM;AArch64" \
+  -DCMAKE_C_COMPILER=clang-11 \
+  -DCMAKE_CXX_COMPILER=clang++-11 \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_INSTALL_PREFIX="$OUTPUT_DIR" \
+  ../llvm
+ninja install -j$(nproc)
+
+# Create symbolic links to binutils.
+# See build/toolchain/custom/BUILD.gn for more information.
+cd "$OUTPUT_DIR/bin"
+for name in ar readelf nm strip; do
+  ln -sf llvm-$name arm-linux-gnueabi-$name
+  ln -sf llvm-$name aarch64-linux-gnu-$name
+  ln -sf llvm-$name i686-linux-gnu-$name
+done
diff --git a/engine/src/flutter/ci/tizen/generate_sysroot.py b/engine/src/flutter/ci/tizen/generate_sysroot.py
new file mode 100755
index 0000000000000..c4bdc51f347cf
--- /dev/null
+++ b/engine/src/flutter/ci/tizen/generate_sysroot.py
@@ -0,0 +1,151 @@
+#!/usr/bin/env python3
+# Copyright 2022 Samsung Electronics Co., Ltd. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import argparse
+import os
+import re
+import shutil
+import subprocess
+import sys
+import urllib.parse
+import urllib.request
+from pathlib import Path
+
+base_packages = [
+    'gcc',
+    'glibc',
+    'glibc-devel',
+    'libgcc',
+    'libstdc++',
+    'linux-glibc-devel',
+    'zlib-devel',
+]
+
+unified_packages = [
+    'fontconfig',
+    'fontconfig-devel',
+    'freetype2-devel',
+    'libpng-devel',
+]
+
+
+def generate_sysroot(sysroot: Path, api_version: float, arch: str, quiet=False):
+  if arch == 'arm':
+    tizen_arch = 'armv7l'
+  elif arch == 'arm64':
+    tizen_arch = 'aarch64'
+  elif arch == 'x86':
+    tizen_arch = 'i686'
+  else:
+    sys.exit('Unknown arch: ' + arch)
+
+  base_repo = 'http://download.tizen.org/snapshots/TIZEN/Tizen-{}/Tizen-{}-Base/latest/repos/standard/packages'.format(
+      api_version, api_version
+  )
+  unified_repo = 'http://download.tizen.org/snapshots/TIZEN/Tizen-{}/Tizen-{}-Unified/latest/repos/standard/packages'.format(
+      api_version, api_version
+  )
+
+  # Retrieve html documents.
+  documents = {}
+  for url in ['{}/{}'.format(base_repo, tizen_arch), '{}/{}'.format(base_repo, 'noarch'),
+              '{}/{}'.format(unified_repo, tizen_arch), '{}/{}'.format(unified_repo, 'noarch')]:
+    request = urllib.request.Request(url)
+    with urllib.request.urlopen(request) as response:
+      documents[url] = response.read().decode('utf-8')
+
+  # Download packages.
+  download_path = sysroot / '.rpms'
+  download_path.mkdir(exist_ok=True)
+  existing_rpms = [f for f in download_path.iterdir() if f.suffix == '.rpm']
+
+  for package in base_packages + unified_packages:
+    quoted = urllib.parse.quote(package)
+    pattern = re.escape(quoted) + '-\\d+\\.[\\d_\\.]+-[\\d\\.]+\\..+\\.rpm'
+
+    if any([re.match(pattern, rpm.name) for rpm in existing_rpms]):
+      continue
+
+    for parent, doc in documents.items():
+      match = re.search('<a href="({})">.+?</a>'.format(pattern), doc)
+      if match:
+        rpm_url = '{}/{}'.format(parent, match.group(1))
+        break
+
+    if match:
+      if not quiet:
+        print('Downloading ' + rpm_url)
+      urllib.request.urlretrieve(rpm_url, download_path / match.group(1))
+    else:
+      sys.exit('Could not find a package named ' + package)
+
+  # Extract files.
+  for rpm in [f for f in download_path.iterdir() if f.suffix == '.rpm']:
+    command = 'rpm2cpio {} | cpio -idum --quiet'.format(rpm)
+    subprocess.run(command, shell=True, cwd=sysroot, check=True)
+
+  # Create symbolic links.
+  asm = sysroot / 'usr' / 'include' / 'asm'
+  if not asm.exists():
+    os.symlink('asm-' + arch, asm)
+  pkgconfig = sysroot / 'usr' / 'lib' / 'pkgconfig'
+  if arch == 'arm64' and not pkgconfig.exists():
+    os.symlink('../lib64/pkgconfig', pkgconfig)
+
+  # Copy objects required by the linker, such as crtbeginS.o and libgcc.a.
+  if arch == 'arm64':
+    libpath = sysroot / 'usr' / 'lib64'
+  else:
+    libpath = sysroot / 'usr' / 'lib'
+  subprocess.run('cp gcc/*/*/*.o gcc/*/*/*.a .', shell=True, cwd=libpath, check=True)
+
+  # Apply a patch if applicable.
+  patch = Path(__file__).parent / '{}.patch'.format(arch)
+  if patch.is_file():
+    command = 'patch -p1 -s -d {} < {}'.format(sysroot, patch)
+    subprocess.run(command, shell=True, check=True)
+
+
+def main():
+  # Check dependencies.
+  for dep in ['rpm2cpio', 'cpio', 'git']:
+    if not shutil.which(dep):
+      sys.exit('{} is not installed. To install, run:\n'
+               '  sudo apt install {}'.format(dep, dep))
+
+  # Parse arguments.
+  parser = argparse.ArgumentParser(description='Tizen sysroot generator')
+  parser.add_argument('-o', '--out', metavar='PATH', type=str, help='Path to the output directory')
+  parser.add_argument('-f', '--force', action='store_true', help='Force re-downloading of packages')
+  parser.add_argument('-q', '--quiet', action='store_true', help='Suppress log output')
+  parser.add_argument(
+      '--api-version',
+      metavar='VER',
+      default=6.0,
+      type=float,
+      help='Target API version (defaults to 6.0)'
+  )
+  args = parser.parse_args()
+
+  if args.out:
+    outpath = Path(args.out)
+  else:
+    outpath = Path(__file__).parent / 'sysroot'
+  outpath.mkdir(exist_ok=True)
+
+  for arch in ['arm', 'arm64', 'x86']:
+    sysroot = outpath / arch
+    if args.force and sysroot.is_dir():
+      shutil.rmtree(sysroot)
+    sysroot.mkdir(exist_ok=True)
+
+    if not args.quiet:
+      print('Generating sysroot for {}...'.format(arch))
+    generate_sysroot(sysroot.resolve(), args.api_version, arch, args.quiet)
+
+
+# Execute only if run as a script.
+if __name__ == '__main__':
+  main()
diff --git a/engine/src/flutter/common/config.gni b/engine/src/flutter/common/config.gni
index b2ae1118e2881..8ce6fb14d2352 100644
--- a/engine/src/flutter/common/config.gni
+++ b/engine/src/flutter/common/config.gni
@@ -163,6 +163,4 @@ if (flutter_prebuilt_dart_sdk) {
 # TODO: We can't build the engine artifacts for arm (32-bit) right now;
 # see https://github.com/flutter/flutter/issues/74322.
 build_engine_artifacts =
-    flutter_build_engine_artifacts && !is_android &&
-    (current_toolchain == host_toolchain ||
-     (is_linux && !is_chromeos && current_cpu != "arm") || is_mac || is_win)
+    flutter_build_engine_artifacts && current_toolchain == host_toolchain
diff --git a/engine/src/flutter/display_list/testing/BUILD.gn b/engine/src/flutter/display_list/testing/BUILD.gn
index fc48324c76e0c..3393da1d1e998 100644
--- a/engine/src/flutter/display_list/testing/BUILD.gn
+++ b/engine/src/flutter/display_list/testing/BUILD.gn
@@ -30,7 +30,8 @@ surface_provider_include_software = !is_android && !is_ios
 # But, since benchmarks do not run on Windows and rendertests only
 # runs on SW by default, this restriction currently only limits the
 # ability to manually cross-check OpenGL on Windows for rendertests
-surface_provider_include_gl = !is_fuchsia && !is_ios && !is_win && !is_mac
+surface_provider_include_gl =
+    !is_fuchsia && !is_ios && !is_win && !is_mac && !is_linux
 
 # TODO (https://github.com/flutter/flutter/issues/107357):
 # impeller_enable_vulkan currently requires skia to not use VMA, which in turn
diff --git a/engine/src/flutter/impeller/tools/args.gni b/engine/src/flutter/impeller/tools/args.gni
index adfc111ffce15..1b8d30d018b3d 100644
--- a/engine/src/flutter/impeller/tools/args.gni
+++ b/engine/src/flutter/impeller/tools/args.gni
@@ -17,7 +17,7 @@ declare_args() {
                               enable_unittests) && target_os != "fuchsia"
 
   # Whether the Vulkan backend is enabled.
-  impeller_enable_vulkan = (is_linux || is_win || is_android || is_mac ||
+  impeller_enable_vulkan = (is_win || is_android || is_mac ||
                             enable_unittests) && target_os != "fuchsia"
 }
 
diff --git a/engine/src/flutter/impeller/tools/shaders.gni b/engine/src/flutter/impeller/tools/shaders.gni
index 140b886552de4..3fbdbb1301342 100644
--- a/engine/src/flutter/impeller/tools/shaders.gni
+++ b/engine/src/flutter/impeller/tools/shaders.gni
@@ -111,22 +111,6 @@ template("impeller_shaders") {
       }
       analyze = analyze
     }
-
-    gles3_shaders = "gles3_$target_name"
-
-    impeller_shaders_gles(gles3_shaders) {
-      name = invoker.name
-      require_framebuffer_fetch = require_framebuffer_fetch
-      gles_language_version = 300
-      is_300 = true
-      analyze = false
-      if (defined(invoker.gles_exclusions)) {
-        shaders = invoker.shaders - invoker.gles_exclusions
-      } else {
-        shaders = invoker.shaders
-      }
-      analyze = analyze
-    }
   }
 
   if (impeller_enable_vulkan) {
@@ -156,10 +140,7 @@ template("impeller_shaders") {
     }
 
     if (enable_opengles) {
-      public_deps += [
-        ":$gles3_shaders",
-        ":$gles_shaders",
-      ]
+      public_deps += [ ":$gles_shaders" ]
     }
 
     if (impeller_enable_vulkan) {
diff --git a/engine/src/flutter/shell/config.gni b/engine/src/flutter/shell/config.gni
index 3f498d2c044f7..9ad466439ee2e 100644
--- a/engine/src/flutter/shell/config.gni
+++ b/engine/src/flutter/shell/config.gni
@@ -17,6 +17,6 @@ declare_args() {
   test_enable_metal = shell_enable_metal
 
   # The Vulkan unittests are combined with the GL unittests.
-  test_enable_vulkan = is_fuchsia || shell_enable_gl
+  test_enable_vulkan = is_fuchsia
   test_enable_software = shell_enable_software
 }
diff --git a/engine/src/flutter/shell/platform/embedder/embedder_external_texture_gl.cc b/engine/src/flutter/shell/platform/embedder/embedder_external_texture_gl.cc
index 852e7390a25ae..d03019c6aef92 100644
--- a/engine/src/flutter/shell/platform/embedder/embedder_external_texture_gl.cc
+++ b/engine/src/flutter/shell/platform/embedder/embedder_external_texture_gl.cc
@@ -140,6 +140,10 @@ sk_sp<DlImage> EmbedderExternalTextureGL::ResolveTextureImpeller(
   }
 
   impeller::TextureDescriptor desc;
+  desc.type = impeller::TextureType::kTextureExternalOES;
+  desc.storage_mode = impeller::StorageMode::kDevicePrivate;
+  desc.format = impeller::PixelFormat::kR8G8B8A8UNormInt;
+  desc.mip_count = 1;
   desc.size = impeller::ISize(texture->width, texture->height);
 
   impeller::ContextGLES& context =
@@ -148,6 +152,9 @@ sk_sp<DlImage> EmbedderExternalTextureGL::ResolveTextureImpeller(
       impeller::HandleType::kTexture, texture->target);
   std::shared_ptr<impeller::TextureGLES> image =
       impeller::TextureGLES::WrapTexture(context.GetReactor(), desc, handle);
+  image->MarkContentsInitialized();
+  image->SetCoordinateSystem(
+      impeller::TextureCoordinateSystem::kUploadFromHost);
 
   if (!image) {
     // In case Skia rejects the image, call the release proc so that
@@ -158,6 +165,14 @@ sk_sp<DlImage> EmbedderExternalTextureGL::ResolveTextureImpeller(
     FML_LOG(ERROR) << "Could not create external texture";
     return nullptr;
   }
+
+  if (!texture->bind_callback(texture->user_data)) {
+    if (texture->destruction_callback) {
+      texture->destruction_callback(texture->user_data);
+    }
+    return nullptr;
+  }
+
   if (texture->destruction_callback &&
       !context.GetReactor()->RegisterCleanupCallback(
           handle,
diff --git a/engine/src/flutter/testing/BUILD.gn b/engine/src/flutter/testing/BUILD.gn
index 1a21ac33669be..48b902554e139 100644
--- a/engine/src/flutter/testing/BUILD.gn
+++ b/engine/src/flutter/testing/BUILD.gn
@@ -53,7 +53,7 @@ source_set("testing") {
 
   if (enable_unittests && is_linux) {
     # So that we can call gtk_init in main().
-    configs += [ "//flutter/shell/platform/linux/config:gtk" ]
+    # configs += [ "//flutter/shell/platform/linux/config:gtk" ]
   }
 
   public_deps = [ ":testing_lib" ]
diff --git a/engine/src/flutter/third_party/txt/src/txt/platform_linux.cc b/engine/src/flutter/third_party/txt/src/txt/platform_linux.cc
index e542d82e50477..add93f0836c9f 100644
--- a/engine/src/flutter/third_party/txt/src/txt/platform_linux.cc
+++ b/engine/src/flutter/third_party/txt/src/txt/platform_linux.cc
@@ -19,7 +19,7 @@
 namespace txt {
 
 std::vector<std::string> GetDefaultFontFamilies() {
-  return {"Ubuntu", "Cantarell", "DejaVu Sans", "Liberation Sans", "Arial"};
+  return {"TizenDefaultFont", "SamsungOneUI"};
 }
 
 sk_sp<SkFontMgr> GetDefaultFontManager(uint32_t font_initialization_data) {
diff --git a/engine/src/flutter/tools/gn b/engine/src/flutter/tools/gn
index 325b5cbece147..fe7226dc63501 100755
--- a/engine/src/flutter/tools/gn
+++ b/engine/src/flutter/tools/gn
@@ -89,18 +89,7 @@ def to_command_line(gn_args):
 
 
 def is_host_build(args):
-  # If target_os == None, then this is a host build.
-  if args.target_os is None:
-    return True
-  # For linux arm64 builds, we cross compile from x64 hosts, so the
-  # target_os='linux' and linux-cpu='arm64'
-  if args.target_os == 'linux' and args.linux_cpu == 'arm64':
-    return True
-  # The Mac and host targets are redundant. Again, necessary to disambiguate
-  # during cross-compilation.
-  if args.target_os == 'mac':
-    return True
-  return False
+  return args.target_os is None
 
 
 # Determines whether a prebuilt Dart SDK can be used instead of building one.
@@ -502,7 +491,7 @@ def to_gn_args(args):
   # does not exist. Further, we set the 'host_cpu' so that it shares the
   # bitwidth of the 32-bit arm target.
   if sys.platform.startswith(
-      ('cygwin', 'win')) and args.target_os == 'android' and gn_args['target_cpu'] == 'arm':
+      ('cygwin', 'win')) and args.target_os != 'win' and gn_args['target_cpu'] == 'arm':
     gn_args['host_cpu'] = 'x86'
     gn_args['current_cpu'] = 'x86'
 
@@ -599,7 +588,7 @@ def to_gn_args(args):
   else:
     gn_args['skia_use_gl'] = args.target_os != 'fuchsia'
 
-  if sys.platform == 'darwin' and args.target_os not in ['android', 'fuchsia']:
+  if sys.platform == 'darwin' and args.target_os not in ['android', 'fuchsia', 'linux']:
     # OpenGL is deprecated on macOS > 10.11.
     # This is not necessarily needed but enabling this until we have a way to
     # build a macOS metal only shell and a gl only shell.
@@ -610,7 +599,7 @@ def to_gn_args(args):
   # Enable Vulkan on all platforms except for iOS. This is just
   # to save on mobile binary size, as there's no reason the Vulkan embedder
   # features can't work on these platforms.
-  if gn_args['target_os'] not in ['ios', 'mac']:
+  if gn_args['target_os'] not in ['ios', 'mac', 'linux']:
     gn_args['skia_use_vulkan'] = True
     gn_args['skia_use_vma'] = False
     gn_args['shell_enable_vulkan'] = True
@@ -698,13 +687,17 @@ def to_gn_args(args):
 
   # Enable pointer compression on 64-bit mobile targets. iOS is excluded due to
   # its inability to allocate address space without allocating memory.
-  if args.target_os in ['android'] and gn_args['target_cpu'] in ['x64', 'arm64']:
+  if args.target_os in ['android', 'linux'] and gn_args['target_cpu'] in ['x64', 'arm64']:
     gn_args['dart_use_compressed_pointers'] = True
 
   if args.target_os == 'fuchsia':
     gn_args['gn_configs_path'] = '//flutter/build/config/fuchsia/gn_configs.gni'
     gn_args['fuchsia_gn_sdk'] = '//flutter/tools/fuchsia/gn-sdk'
 
+  # Don't use the default Linux sysroot when buliding for Linux on macOS.
+  if sys.platform == 'darwin' and args.target_os == 'linux':
+    gn_args['use_default_linux_sysroot'] = False
+
   # Flags for Dart features:
   if args.use_mallinfo2:
     gn_args['dart_use_mallinfo2'] = args.use_mallinfo2
@@ -730,9 +723,8 @@ def to_gn_args(args):
   # gen_snapshot, but the build defines otherwise make it look like the build is
   # for a host Windows build and make GN think we will be building ANGLE.
   # Angle is not used on Mac hosts as there are no tests for the OpenGL backend.
-  if is_host_build(args) or (args.target_os == 'android' and get_host_os() == 'win'):
-    # Don't include git commit information.
-    gn_args['angle_enable_commit_id'] = False
+  if (is_host_build(args) and gn_args['host_os'] != 'mac') or (args.target_os == 'linux' and
+                                                               get_host_os() == 'win'):
     # Do not build unnecessary parts of the ANGLE tree.
     gn_args['angle_build_all'] = False
     gn_args['angle_has_astc_encoder'] = False