diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 527055a..af14439 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
       matrix:
         name:
           - windows_x86_64
-    runs-on: windows-latest
+    runs-on: windows-2022
     steps:
     - uses: actions/checkout@v4
     - name: Disk Cleanup
@@ -51,7 +51,7 @@ jobs:
       fail-fast: false
       matrix:
         name:
-          # - macos_arm64
+          - macos_arm64
           - macos_x86_64
           # - ios
     runs-on: macos-15
@@ -60,6 +60,10 @@ jobs:
     - name: Select Xcode 16.1
       run: sudo xcode-select --switch /Applications/Xcode_16.1.app/Contents/Developer
     - run: brew install ninja
+    - uses: actions/setup-python@v5
+      with:
+        python-version: '3.12'
+    - run: pip install setuptools
     - run: ./build.${{ matrix.name }}.sh "${{ github.event.inputs.commitHash }}"
     - name: Upload Artifact
       uses: actions/upload-artifact@v4
@@ -80,11 +84,11 @@ jobs:
           # - ubuntu-18.04_armv8
           # - ubuntu-20.04_armv8
           # - ubuntu-18.04_x86_64
-          - ubuntu-20.04_x86_64
-          # - ubuntu-22.04_x86_64
+          # - ubuntu-20.04_x86_64
+          - ubuntu-22.04_x86_64
           # - android
           # - android_prefixed
-    runs-on: linux-large 
+    runs-on: linux-large
     steps:
     - uses: actions/checkout@v4
     - name: Disk Cleanup
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 13b3e9b..0c2569c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -16,7 +16,7 @@ jobs:
           - windows_x86_64
           # - windows_arm64
           # - windows_x86
-    runs-on: windows-latest
+    runs-on: windows-2022
     outputs:
       output-artifact-id: ${{ steps.artifact-upload-step.outputs.artifact-id }}
     steps:
@@ -49,7 +49,7 @@ jobs:
       uses: actions/upload-artifact@v4
       id: artifact-upload-step
       with:
-        name: webrtc.${{ matrix.name }}.tar.bz2
+        name: webrtc.${{ matrix.name }}
         path: build\_package\${{ matrix.name }}\webrtc.tar.bz2
   build-macos:
     defaults:
@@ -59,7 +59,7 @@ jobs:
       fail-fast: false
       matrix:
         name:
-          # - macos_arm64
+          - macos_arm64
           - macos_x86_64
           # - ios
     runs-on: macos-15
@@ -70,6 +70,10 @@ jobs:
     - name: Select Xcode 16.1
       run: sudo xcode-select --switch /Applications/Xcode_16.1.app/Contents/Developer
     - run: brew install ninja
+    - uses: actions/setup-python@v5
+      with:
+        python-version: '3.12'
+    - run: pip install setuptools
     - name: Determine Release Tag
       env:
         RELEASE: ${{ github.ref_name }}
@@ -77,12 +81,12 @@ jobs:
       run: |
         echo "tag=${RELEASE%%.*}" >> "$GITHUB_OUTPUT"
         echo "3P_WEBRTC_BUILD_RELEASE_VERSION=${RELEASE}" >> "VERSION"
-    - run: ./build.${{ matrix.name }}.sh "${{ steps.release_tag.outputs.tag }}_release"    
+    - run: ./build.${{ matrix.name }}.sh "${{ steps.release_tag.outputs.tag }}_release"
     - name: Upload Artifact
       uses: actions/upload-artifact@v4
       id: artifact-upload-step
       with:
-        name: webrtc.${{ matrix.name }}.tar.bz2
+        name: webrtc.${{ matrix.name }}
         path: build/_package/${{ matrix.name }}/webrtc.tar.bz2
   build-linux:
     defaults:
@@ -128,33 +132,78 @@ jobs:
       uses: actions/upload-artifact@v4
       id: artifact-upload-step
       with:
-        name: webrtc.${{ matrix.name }}.tar.bz2
+        name: webrtc.${{ matrix.name }}
         path: build/_package/${{ matrix.name }}/webrtc.tar.bz2
   package-macos:
     needs:
     - build-macos
     runs-on: macos-15
     steps:
-    - uses: secondlife/action-autobuild@v3
+    # Checkout first to avoid damaging artifact download below
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        # Work around the fact that in the context of a pull request github.sha
+        # references a dynamic merge commit rather than the branch head
+        # https://frontside.com/blog/2020-05-26-github-actions-pull_request/#how-does-pull_request-affect-actionscheckout
+        ref: ${{ github.event.pull_request.head.sha || github.sha }}
+        fetch-depth: 0
+        submodules: recursive
+    - name: Download webrtc artifacts
+      uses: actions/download-artifact@v4
       with:
+        path: _packages
+    - uses: secondlife/action-autobuild@v5
+      with:
+        checkout: false
         token: ${{ github.token }}
         build-args: ../build-cmd.sh ${{ needs.build-macos.outputs.output-artifact-id }}
   package-windows:
     needs:
-    - build-windows 
-    runs-on: windows-latest
+    - build-windows
+    runs-on: windows-2022
     steps:
-    - uses: secondlife/action-autobuild@v3
+    # Checkout first to avoid damaging artifact download below
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        # Work around the fact that in the context of a pull request github.sha
+        # references a dynamic merge commit rather than the branch head
+        # https://frontside.com/blog/2020-05-26-github-actions-pull_request/#how-does-pull_request-affect-actionscheckout
+        ref: ${{ github.event.pull_request.head.sha || github.sha }}
+        fetch-depth: 0
+        submodules: recursive
+    - name: Download webrtc artifacts
+      uses: actions/download-artifact@v4
       with:
+        path: _packages
+    - uses: secondlife/action-autobuild@v5
+      with:
+        checkout: false
         token: ${{ github.token }}
         build-args: ../build-cmd.sh ${{ needs.build-windows.outputs.output-artifact-id }}
   package-linux:
     needs:
     - build-linux
-    runs-on: ubuntu-latest 
+    runs-on: ubuntu-latest
     steps:
-    - uses: secondlife/action-autobuild@v3
+    # Checkout first to avoid damaging artifact download below
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        # Work around the fact that in the context of a pull request github.sha
+        # references a dynamic merge commit rather than the branch head
+        # https://frontside.com/blog/2020-05-26-github-actions-pull_request/#how-does-pull_request-affect-actionscheckout
+        ref: ${{ github.event.pull_request.head.sha || github.sha }}
+        fetch-depth: 0
+        submodules: recursive
+    - name: Download webrtc artifacts
+      uses: actions/download-artifact@v4
+      with:
+        path: _packages
+    - uses: secondlife/action-autobuild@v5
       with:
+        checkout: false
         token: ${{ github.token }}
         build-args: ../build-cmd.sh ${{ needs.build-linux.outputs.output-artifact-id }}
   release:
diff --git a/build-cmd.sh b/build-cmd.sh
index a5a3b09..7aa9934 100755
--- a/build-cmd.sh
+++ b/build-cmd.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 cd "$(dirname "$0")"
-artifact_id="$1"
+#artifact_id="$1"
 
 # turn on verbose debugging output for logs.
 exec 4>&1; export BASH_XTRACEFD=4; set -x
@@ -17,66 +17,75 @@ set -u
 # this command to stop it doing that...
 [[ "$OSTYPE" == "cygwin" ]] && set -o igncr
 
-top="$(pwd)"
-stage="${top}"/stage
-
 case "$AUTOBUILD_PLATFORM" in
-    windows64)
+    windows*)
         autobuild="$(cygpath -u "$AUTOBUILD")"
         build_type="windows_x86_64"
     ;;
-    darwin64)
-        build_type="macos_x86_64"
+    darwin*)
         autobuild="$AUTOBUILD"
     ;;
     linux*)
-        build_type="linux_x86_64"
+        build_type="ubuntu-22.04_x86_64"
         autobuild="$AUTOBUILD"
     ;;
     *)
         echo "This project is not currently supported for $AUTOBUILD_PLATFORM" 1>&2 ; exit 1
-        
+
     ;;
 esac
 
+top="$(pwd)"
+stage="${top}"/stage
+
 source_environment_tempfile="$stage/source_environment.sh"
 "$autobuild" source_environment > "$source_environment_tempfile"
 . "$source_environment_tempfile"
 
 pushd "$stage"
 
-# download the artifact
-curl -o webrtc.tar.bz2.zip -L -H "Accept: application/vnd.github+json" \
-                              -H "X-GitHub-Api-Version: 2022-11-28" \
-                              -H "Authorization: Bearer $AUTOBUILD_GITHUB_TOKEN" \
-                              https://api.github.com/repos/secondlife/3p-webrtc-build/actions/artifacts/"$artifact_id"/zip
-
-# delete it so autobuild upload doesn't assume it's a bad autobuild artifact
-# TODO: Find a better way to do this that doesn't involve a 3rd party action
-#curl -X DELETE -H "Accept: application/vnd.github+json" \
-#               -H "X-GitHub-Api-Version: 2022-11-28" \
-#               -H "Authorization: Bearer $AUTOBUILD_GITHUB_TOKEN" \
-#               https://api.github.com/repos/secondlife/3p-webrtc-build/actions/artifacts/"$artifact_id"
-
-unzip webrtc.tar.bz2.zip
-tar xjf webrtc.tar.bz2 --strip-components=1
-rm webrtc.tar.bz2.zip
-rm webrtc.tar.bz2
-
-# Munge the WebRTC Build package contents into something compatible
-# with the layout we use for other autobuild pacakges
-mv include webrtc
-mkdir include
-mv webrtc include
-mv lib release
-mkdir lib
-mv release lib
-mkdir LICENSES
-mv NOTICE LICENSES/webrtc-license.txt
-
 case "$AUTOBUILD_PLATFORM" in
-    darwin64)
-        mv Frameworks/WebRTC.xcframework/macos-x86_64/WebRTC.framework lib/release
+    darwin*)
+        mkdir "x86_64"
+        pushd "x86_64"
+            tar -xjf  "$top"/_packages/webrtc.macos_x86_64/webrtc.tar.bz2 --strip-components=1
+        popd
+
+        mkdir "arm64"
+        pushd "arm64"
+            tar -xjf "$top"/_packages/webrtc.macos_arm64/webrtc.tar.bz2 --strip-components=1
+        popd
+
+        # Munge the WebRTC Build package contents into something compatible
+        # with the layout we use for other autobuild pacakges
+
+        # Create universal library
+        mkdir -p lib/release
+        lipo -create -output "$stage/lib/release/libwebrtc.a" "$stage/x86_64/lib/libwebrtc.a" "$stage/arm64/lib/libwebrtc.a"
+
+        mkdir -p include/webrtc
+        mv x86_64/include/* include/webrtc
+
+        mkdir LICENSES
+        mv x86_64/NOTICE LICENSES/webrtc-license.txt
+    ;;
+    *)
+        tar -xjf "$top"/_packages/webrtc."$build_type"/webrtc.tar.bz2 --strip-components=1
+
+        # Munge the WebRTC Build package contents into something compatible
+        # with the layout we use for other autobuild pacakges
+        mv include webrtc
+        mkdir include
+        mv webrtc include
+        mv lib release
+        mkdir lib
+        mv release lib
+        mkdir LICENSES
+        mv NOTICE LICENSES/webrtc-license.txt
+    ;;
+    *)
+        echo "This project is not currently supported for $AUTOBUILD_PLATFORM" 1>&2 ; exit 1
+
     ;;
 esac
 
diff --git a/build-local.sh b/build-local.sh
index 9b4a8a6..6640252 100644
--- a/build-local.sh
+++ b/build-local.sh
@@ -22,7 +22,7 @@ stage="${top}"/stage
 build="${top}"/build
 
 rm -rf "$stage"/*
-rm -rf "$build"/_package
+#rm -rf "$build"/_package
 case "$AUTOBUILD_PLATFORM" in
     windows64)
         autobuild="$(cygpath -u "$AUTOBUILD")"
@@ -32,48 +32,89 @@ case "$AUTOBUILD_PLATFORM" in
         autobuild="$(cygpath -u "$AUTOBUILD")"
         build_type="windows_x86_64"
     ;;
-    darwin64)
-        build_type="macos_x86_64"
-        autobuild="$AUTOBUILD"
-    ;;
-    darwin)
+    darwin*)
         build_type="macos_x86_64"
         autobuild="$AUTOBUILD"
     ;;
     linux*)
-        build_type="linux_x86_64"
+        build_type="ubuntu-22.04_x86_64"
         autobuild="$AUTOBUILD"
     ;;
     *)
         echo "This project is not currently supported for $AUTOBUILD_PLATFORM" 1>&2 ; exit 1
-        
+
     ;;
 esac
 
 pushd "$build"
-bash ./build."$build_type".sh m137_release
-
-source_environment_tempfile="$stage/source_environment.sh"
-autobuild source_environment > "$source_environment_tempfile"
-. "$source_environment_tempfile"
-
-pushd "$stage"
-
-tar -xjf "$build"/_package/"$build_type"/webrtc.tar.bz2 --strip-components=1
-
-# Munge the WebRTC Build package contents into something compatible
-# with the layout we use for other autobuild pacakges
-mv include webrtc
-mkdir include
-mv webrtc include
-mv lib release
-mkdir lib
-mv release lib
-mkdir LICENSES
-mv NOTICE LICENSES/webrtc-license.txt
-
-build=${AUTOBUILD_BUILD_ID:=0}
-echo "m137_release.${build}" > "$stage/VERSION.txt"
-echo "m137_release.${build}" > "$top/VERSION.txt"
-popd
+
+# Special case for macos universal packages
+case "$AUTOBUILD_PLATFORM" in
+    darwin*)
+        # bash ./build.macos_x86_64.sh m137_release
+        # bash ./build.macos_arm64.sh m137_release
+
+        source_environment_tempfile="$stage/source_environment.sh"
+        autobuild source_environment > "$source_environment_tempfile"
+        . "$source_environment_tempfile"
+
+        pushd "$stage"
+
+        mkdir "x86_64"
+        pushd "x86_64"
+            tar -xjf "$build"/_package/macos_x86_64/webrtc.tar.bz2 --strip-components=1
+        popd
+
+        mkdir "arm64"
+        pushd "arm64"
+            tar -xjf "$build"/_package/macos_arm64/webrtc.tar.bz2 --strip-components=1
+        popd
+
+        # Munge the WebRTC Build package contents into something compatible
+        # with the layout we use for other autobuild pacakges
+
+        # Create universal library
+        mkdir -p lib/release
+        lipo -create -output "$stage/lib/release/libwebrtc.a" "$stage/x86_64/lib/libwebrtc.a" "$stage/arm64/lib/libwebrtc.a"
+
+        mkdir -p include/webrtc
+        mv x86_64/include/* include/webrtc
+
+        mkdir LICENSES
+        mv x86_64/NOTICE LICENSES/webrtc-license.txt
+
+        build=${AUTOBUILD_BUILD_ID:=0}
+        echo "m137_release.${build}" > "$stage/VERSION.txt"
+        echo "m137_release.${build}" > "$top/VERSION.txt"
+        popd
+    ;;
+    *)
+        bash ./build."$build_type".sh m137_release
+
+        source_environment_tempfile="$stage/source_environment.sh"
+        autobuild source_environment > "$source_environment_tempfile"
+        . "$source_environment_tempfile"
+
+        pushd "$stage"
+
+        tar -xjf "$build"/_package/"$build_type"/webrtc.tar.bz2 --strip-components=1
+
+        # Munge the WebRTC Build package contents into something compatible
+        # with the layout we use for other autobuild pacakges
+        mv include webrtc
+        mkdir include
+        mv webrtc include
+        mv lib release
+        mkdir lib
+        mv release lib
+        mkdir LICENSES
+        mv NOTICE LICENSES/webrtc-license.txt
+
+        build=${AUTOBUILD_BUILD_ID:=0}
+        echo "m137_release.${build}" > "$stage/VERSION.txt"
+        echo "m137_release.${build}" > "$top/VERSION.txt"
+        popd
+    ;;
+esac
+
 popd
diff --git a/build/build.macos_arm64.sh b/build/build.macos_arm64.sh
index 5dcfcc0..30857ad 100755
--- a/build/build.macos_arm64.sh
+++ b/build/build.macos_arm64.sh
@@ -2,5 +2,5 @@
 
 set -ex
 cd `dirname $0`
-python3 run.py build macos_arm64 --commit "$1"
+python3 run.py build macos_arm64 --webrtc-fetch --commit "$1"
 python3 run.py package macos_arm64
\ No newline at end of file
diff --git a/build/build.macos_x86_64.sh b/build/build.macos_x86_64.sh
index 281911a..b11097f 100755
--- a/build/build.macos_x86_64.sh
+++ b/build/build.macos_x86_64.sh
@@ -2,8 +2,5 @@
 
 set -ex
 cd `dirname $0`
-python3 -m venv ./venv
-source ./venv/bin/activate
-pip3 install setuptools
 python3 run.py build macos_x86_64 --webrtc-fetch --commit "$1"
 python3 run.py package macos_x86_64
diff --git a/build/patches/enable_gcc_permissive.patch b/build/patches/enable_gcc_permissive.patch
new file mode 100644
index 0000000..e0275ad
--- /dev/null
+++ b/build/patches/enable_gcc_permissive.patch
@@ -0,0 +1,15 @@
+diff --git a/BUILD.gn b/BUILD.gn
+index e4a82bc8d6..54fde4ce9a 100644
+--- a/BUILD.gn
++++ b/BUILD.gn
+@@ -384,6 +384,10 @@ config("common_config") {
+       # warning.
+       "-Wctad-maybe-unsupported",
+     ]
++  } else {
++    if(is_linux) {
++      cflags += [ "-fpermissive" ]
++    }
+   }
+ 
+   if (build_with_chromium) {
diff --git a/build/patches/gcc_fpermissive_error.patch b/build/patches/gcc_fpermissive_error.patch
new file mode 100644
index 0000000..52ffa1f
--- /dev/null
+++ b/build/patches/gcc_fpermissive_error.patch
@@ -0,0 +1,12 @@
+diff -durN webrtc-m137/p2p/base/port_interface.h webrtc-m137-patched/p2p/base/port_interface.h
+--- webrtc-m137/p2p/base/port_interface.h	2025-09-01 14:30:40.000000000 +0200
++++ webrtc-m137-patched/p2p/base/port_interface.h	2025-09-05 15:07:36.904283022 +0200
+@@ -55,7 +55,7 @@
+   virtual ~PortInterface();
+ 
+   virtual IceCandidateType Type() const = 0;
+-  virtual const Network* Network() const = 0;
++  virtual const webrtc::Network* Network() const = 0;
+ 
+   // Methods to set/get ICE role and tiebreaker values.
+   virtual void SetIceRole(IceRole role) = 0;
diff --git a/build/run.py b/build/run.py
index 63f91aa..af5c3f9 100644
--- a/build/run.py
+++ b/build/run.py
@@ -268,6 +268,8 @@ def get_depot_tools(source_dir, fetch=False):
         'bug_8759_workaround.patch',
         'disable_mute_of_audio_processing.patch',
         'crash_on_fatal_error.patch',
+        'gcc_fpermissive_error.patch',
+        'enable_gcc_permissive.patch',
     ],
     'raspberry-pi-os_armv7': [
         'add_license_dav1d.patch',
@@ -276,6 +278,8 @@ def get_depot_tools(source_dir, fetch=False):
         'bug_8759_workaround.patch',
         'disable_mute_of_audio_processing.patch',
         'crash_on_fatal_error.patch',
+        'gcc_fpermissive_error.patch',
+        'enable_gcc_permissive.patch',
     ],
     'raspberry-pi-os_armv8': [
         'add_license_dav1d.patch',
@@ -284,6 +288,8 @@ def get_depot_tools(source_dir, fetch=False):
         'bug_8759_workaround.patch',
         'disable_mute_of_audio_processing.patch',
         'crash_on_fatal_error.patch',
+        'gcc_fpermissive_error.patch',
+        'enable_gcc_permissive.patch',
     ],
     'ubuntu-18.04_armv8': [
         'add_license_dav1d.patch',
@@ -292,6 +298,8 @@ def get_depot_tools(source_dir, fetch=False):
         'bug_8759_workaround.patch',
         'disable_mute_of_audio_processing.patch',
         'crash_on_fatal_error.patch',
+        'gcc_fpermissive_error.patch',
+        'enable_gcc_permissive.patch',
     ],
     'ubuntu-20.04_armv8': [
         'add_license_dav1d.patch',
@@ -300,6 +308,8 @@ def get_depot_tools(source_dir, fetch=False):
         'bug_8759_workaround.patch',
         'disable_mute_of_audio_processing.patch',
         'crash_on_fatal_error.patch',
+        'gcc_fpermissive_error.patch',
+        'enable_gcc_permissive.patch',
     ],
     'ubuntu-18.04_x86_64': [
         'add_license_dav1d.patch',
@@ -308,6 +318,8 @@ def get_depot_tools(source_dir, fetch=False):
         'bug_8759_workaround.patch',
         'disable_mute_of_audio_processing.patch',
         'crash_on_fatal_error.patch',
+        'gcc_fpermissive_error.patch',
+        'enable_gcc_permissive.patch',
     ],
     'ubuntu-20.04_x86_64': [
         'add_license_dav1d.patch',
@@ -316,6 +328,8 @@ def get_depot_tools(source_dir, fetch=False):
         'bug_8759_workaround.patch',
         'disable_mute_of_audio_processing.patch',
         'crash_on_fatal_error.patch',
+        'gcc_fpermissive_error.patch',
+        'enable_gcc_permissive.patch',
     ],
     'ubuntu-22.04_x86_64': [
         'add_license_dav1d.patch',
@@ -324,6 +338,8 @@ def get_depot_tools(source_dir, fetch=False):
         'bug_8759_workaround.patch',
         'disable_mute_of_audio_processing.patch',
         'crash_on_fatal_error.patch',
+        'gcc_fpermissive_error.patch',
+        'enable_gcc_permissive.patch',
     ],
 }
 
@@ -374,7 +390,7 @@ def get_webrtc(source_dir, patch_dir, version, target,
                 cmd(['git', 'branch'])
                 cmd(['git', 'checkout', '-f', version])
             cmd(['git', 'clean', '-df'])
-            cmd(['gclient', 'sync', '-D', '--force', '--reset', '--with_branch_heads', '--jobs=8'])
+            cmd(['gclient', 'sync', '-D', '--force', '--reset', '--revision', version, '--no-history', '--jobs=8'])
             for patch in PATCHES[target]:
                 depth, dirs = PATCH_INFO.get(patch, (1, ['.']))
                 dir = os.path.join(src_dir, *dirs)
@@ -752,7 +768,8 @@ def build_webrtc(
                 f'target_cpu="{target_cpus[target]}"',
                 "use_custom_libcxx=false",
                 "use_custom_libcxx_for_host=false",
-                "is_clang=true"
+                "is_clang=true",
+                'use_lld=false',
             ]
         elif target in ('macos_x86_64', 'macos_arm64'):
             gn_args += [
@@ -797,9 +814,14 @@ def build_webrtc(
             gn_args += [
                 'target_os="linux"',
                 'rtc_use_pipewire=false',
+                'rtc_use_x11=false',
                 "use_custom_libcxx=false",
                 "use_custom_libcxx_for_host=false",
-                'rtc_include_pulse_audio=false',
+                'is_clang=false',
+                'clang_use_chrome_plugins=false',
+                'use_lld=false',
+                'use_thin_lto=false',
+                'rtc_include_pulse_audio=true',
                 'rtc_include_internal_audio_device=true',
             ]
         else:
@@ -824,10 +846,8 @@ def build_webrtc(
 
     if target in ['windows_x86_64', 'windows_x86', 'windows_arm64']:
         pass
-    elif target in ('macos_x86_64', 'macos_arm64'):
-        ar = '/usr/bin/ar'
     else:
-        ar = os.path.join(webrtc_src_dir, 'third_party/llvm-build/Release+Asserts/bin/llvm-ar')
+        ar = '/usr/bin/ar'
 
     # ar で libwebrtc.a を生成する
     # Create libwebrtc.a with ar
@@ -1218,7 +1238,7 @@ def main():
             commit = version_info.webrtc_commit
             if args.commit:
                 commit = args.commit
-            
+
             print("Building for commit: ", commit)
 
             # ソース取得
diff --git a/build/scripts/apt_install_x86_64.sh b/build/scripts/apt_install_x86_64.sh
index 4044bff..1dc77af 100755
--- a/build/scripts/apt_install_x86_64.sh
+++ b/build/scripts/apt_install_x86_64.sh
@@ -8,7 +8,7 @@ apt-get -y upgrade
 # tzdata を noninteractive にしないと実行が止まってしまう
 # need to set tzdata to noninteractive or else it'll stop
 apt-get -y install tzdata
-echo 'Asia/Tokyo' > /etc/timezone
+echo 'America/New_York' > /etc/timezone
 dpkg-reconfigure -f noninteractive tzdata
 
 export DEBIAN_FRONTEND=noninteractive
@@ -27,4 +27,5 @@ apt-get -y install \
   unzip \
   vim \
   wget \
-  xz-utils
+  xz-utils \
+  build-essential