diff --git a/.github/smoke/linux-arm64/cpp-src/platform.cc b/.github/smoke/linux-arm64/cpp-src/platform.cc
new file mode 100644
index 00000000..9814ae97
--- /dev/null
+++ b/.github/smoke/linux-arm64/cpp-src/platform.cc
@@ -0,0 +1,44 @@
+#include <phpx.h>
+
+#include <cstring>
+#include <sys/utsname.h>
+#include <unistd.h>
+
+using namespace php;
+
+Int php_linux_current_process_id()
+{
+    return static_cast<Int>(getpid());
+}
+
+Int php_linux_online_processor_count()
+{
+    return static_cast<Int>(sysconf(_SC_NPROCESSORS_ONLN));
+}
+
+Bool php_linux_uname_machine_is_arm64()
+{
+    utsname info{};
+    if (uname(&info) != 0) {
+        return false;
+    }
+    return std::strcmp(info.machine, "aarch64") == 0 || std::strcmp(info.machine, "arm64") == 0;
+}
+
+Bool php_linux_native_is_arm64()
+{
+#if defined(__aarch64__) || defined(__arm64__)
+    return true;
+#else
+    return false;
+#endif
+}
+
+Bool php_linux_native_php_is_zts()
+{
+#ifdef ZTS
+    return true;
+#else
+    return false;
+#endif
+}
diff --git a/.github/smoke/linux-arm64/cpp-src/platform.stub.php b/.github/smoke/linux-arm64/cpp-src/platform.stub.php
new file mode 100644
index 00000000..40f70422
--- /dev/null
+++ b/.github/smoke/linux-arm64/cpp-src/platform.stub.php
@@ -0,0 +1,12 @@
+<?php
+
+/** Linux ARM64 platform declarations implemented by platform.cc. */
+function linux_current_process_id(): int {}
+
+function linux_online_processor_count(): int {}
+
+function linux_uname_machine_is_arm64(): bool {}
+
+function linux_native_is_arm64(): bool {}
+
+function linux_native_php_is_zts(): bool {}
diff --git a/.github/smoke/linux-arm64/main.php b/.github/smoke/linux-arm64/main.php
new file mode 100644
index 00000000..776a83ca
--- /dev/null
+++ b/.github/smoke/linux-arm64/main.php
@@ -0,0 +1,22 @@
+<?php
+
+function requireLinuxArm64Condition(bool $condition, string $message): void
+{
+    if (!$condition) {
+        throw new RuntimeException($message);
+    }
+}
+
+function main(): void
+{
+    requireLinuxArm64Condition(PHP_OS_FAMILY === 'Linux', 'Expected PHP_OS_FAMILY=Linux');
+    requireLinuxArm64Condition(DIRECTORY_SEPARATOR === '/', 'Expected the Unix directory separator');
+    requireLinuxArm64Condition(PHP_ZTS !== 0 && PHP_ZTS !== false, 'Expected a ZTS PHP runtime');
+    requireLinuxArm64Condition(linux_native_php_is_zts(), 'The native ZTS macro is not enabled');
+    requireLinuxArm64Condition(linux_native_is_arm64(), 'The native compiler target is not ARM64');
+    requireLinuxArm64Condition(linux_current_process_id() > 0, 'getpid() failed');
+    requireLinuxArm64Condition(linux_online_processor_count() > 0, 'sysconf() returned no processors');
+    requireLinuxArm64Condition(linux_uname_machine_is_arm64(), 'uname() did not report ARM64');
+
+    echo 'linux-arm64-smoke-ok:zts';
+}
diff --git a/.github/smoke/linux-arm64/project.yml b/.github/smoke/linux-arm64/project.yml
new file mode 100644
index 00000000..93f035d9
--- /dev/null
+++ b/.github/smoke/linux-arm64/project.yml
@@ -0,0 +1,9 @@
+name: linux-arm64-smoke
+mode: bin
+build-dir: build
+output: linux_arm64_smoke
+cxx-std: c++17
+
+sources:
+  - main.php
+  - cpp-src
diff --git a/.github/smoke/macos/cpp-src/platform.cc b/.github/smoke/macos/cpp-src/platform.cc
new file mode 100644
index 00000000..239d4fb7
--- /dev/null
+++ b/.github/smoke/macos/cpp-src/platform.cc
@@ -0,0 +1,45 @@
+#include <phpx.h>
+
+#include <mach/mach.h>
+#include <sys/sysctl.h>
+#include <unistd.h>
+
+using namespace php;
+
+Int php_macos_current_process_id()
+{
+    return static_cast<Int>(getpid());
+}
+
+Int php_macos_logical_processor_count()
+{
+    int count = 0;
+    size_t size = sizeof(count);
+    if (sysctlbyname("hw.logicalcpu", &count, &size, nullptr, 0) != 0) {
+        return 0;
+    }
+    return static_cast<Int>(count);
+}
+
+Bool php_macos_has_mach_host_port()
+{
+    return mach_host_self() != MACH_PORT_NULL;
+}
+
+Bool php_macos_native_is_arm64()
+{
+#if defined(__aarch64__) || defined(__arm64__)
+    return true;
+#else
+    return false;
+#endif
+}
+
+Bool php_macos_native_php_is_zts()
+{
+#ifdef ZTS
+    return true;
+#else
+    return false;
+#endif
+}
diff --git a/.github/smoke/macos/cpp-src/platform.stub.php b/.github/smoke/macos/cpp-src/platform.stub.php
new file mode 100644
index 00000000..e9799d58
--- /dev/null
+++ b/.github/smoke/macos/cpp-src/platform.stub.php
@@ -0,0 +1,12 @@
+<?php
+
+/** macOS platform declarations implemented by platform.cc. */
+function macos_current_process_id(): int {}
+
+function macos_logical_processor_count(): int {}
+
+function macos_has_mach_host_port(): bool {}
+
+function macos_native_is_arm64(): bool {}
+
+function macos_native_php_is_zts(): bool {}
diff --git a/.github/smoke/macos/main.php b/.github/smoke/macos/main.php
new file mode 100644
index 00000000..11949d2a
--- /dev/null
+++ b/.github/smoke/macos/main.php
@@ -0,0 +1,22 @@
+<?php
+
+function requireMacosCondition(bool $condition, string $message): void
+{
+    if (!$condition) {
+        throw new RuntimeException($message);
+    }
+}
+
+function main(): void
+{
+    requireMacosCondition(PHP_OS_FAMILY === 'Darwin', 'Expected PHP_OS_FAMILY=Darwin');
+    requireMacosCondition(DIRECTORY_SEPARATOR === '/', 'Expected the Unix directory separator');
+    requireMacosCondition(PHP_ZTS !== 0 && PHP_ZTS !== false, 'Expected a ZTS PHP runtime');
+    requireMacosCondition(macos_native_php_is_zts(), 'The native ZTS macro is not enabled');
+    requireMacosCondition(macos_native_is_arm64(), 'The native compiler target is not ARM64');
+    requireMacosCondition(macos_current_process_id() > 0, 'getpid() failed');
+    requireMacosCondition(macos_logical_processor_count() > 0, 'sysctl() returned no processors');
+    requireMacosCondition(macos_has_mach_host_port(), 'mach_host_self() failed');
+
+    echo 'macos-arm64-smoke-ok:zts';
+}
diff --git a/.github/smoke/macos/project.yml b/.github/smoke/macos/project.yml
new file mode 100644
index 00000000..457208cf
--- /dev/null
+++ b/.github/smoke/macos/project.yml
@@ -0,0 +1,9 @@
+name: macos-smoke
+mode: bin
+build-dir: build
+output: macos_smoke
+cxx-std: c++17
+
+sources:
+  - main.php
+  - cpp-src
diff --git a/.github/workflows/platform-build.yml b/.github/workflows/platform-build.yml
new file mode 100644
index 00000000..e11ac022
--- /dev/null
+++ b/.github/workflows/platform-build.yml
@@ -0,0 +1,179 @@
+name: ARM64 and macOS tpc build
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: platform-tpc-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  COMPOSER_NO_INTERACTION: 1
+  COMPOSER_PROCESS_TIMEOUT: 0
+
+jobs:
+  build-tpc:
+    name: ${{ matrix.target.label }} (PHP ${{ matrix.php }} ZTS)
+    runs-on: ${{ matrix.target.runner }}
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        php: ["8.4", "8.5"]
+        target:
+          - label: Linux ARM64
+            runner: ubuntu-22.04-arm
+            os: linux
+            arch: arm64
+            library_ext: so
+            smoke_dir: linux-arm64
+            smoke_binary: linux_arm64_smoke
+            smoke_output: linux-arm64-smoke-ok:zts
+          - label: macOS ARM64
+            runner: macos-15
+            os: macos
+            arch: arm64
+            library_ext: dylib
+            smoke_dir: macos
+            smoke_binary: macos_smoke
+            smoke_output: macos-arm64-smoke-ok:zts
+    env:
+      PHPX_HOME: ${{ github.workspace }}/vendor/swoole/phpx
+
+    steps:
+      - name: Checkout TypePHP
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: none
+          extensions: mbstring
+          ini-values: precision=17, memory_limit=4G, error_reporting=E_ERROR|E_WARNING, display_errors=1, display_startup_errors=1, log_errors=0
+          tools: composer:v2
+        env:
+          fail-fast: true
+          phpts: ts
+          update: true
+
+      - name: Install Linux build dependencies
+        if: matrix.target.os == 'linux'
+        shell: bash
+        run: |
+          sudo apt-get update
+          sudo apt-get install --yes build-essential cmake libgmp-dev libmpfr-dev pkg-config
+
+      - name: Install macOS build dependencies
+        if: matrix.target.os == 'macos'
+        shell: bash
+        run: brew install cmake gmp mpfr pkg-config
+
+      - name: Verify ZTS PHP and architecture
+        shell: bash
+        run: |
+          php -r 'if (!PHP_ZTS) { fwrite(STDERR, "Expected a ZTS PHP build\n"); exit(1); }'
+          case "$(php -r 'echo PHP_VERSION;')" in
+            "${{ matrix.php }}"*) ;;
+            *) echo "setup-php installed an unexpected PHP version" >&2; exit 1 ;;
+          esac
+          case "$(uname -m)" in
+            arm64|aarch64) ;;
+            *) echo "Expected an ARM64 runner, got $(uname -m)" >&2; exit 1 ;;
+          esac
+
+          php_home="$(php-config --prefix)"
+          embed_library="${php_home}/lib/libphp.${{ matrix.target.library_ext }}"
+          test -x "${php_home}/bin/php-config"
+          test -f "${embed_library}"
+          echo "PHP_HOME=${php_home}" >> "${GITHUB_ENV}"
+          if [[ '${{ matrix.target.os }}' == 'linux' ]]; then
+            echo "LD_LIBRARY_PATH=${PHPX_HOME}/lib:${php_home}/lib" >> "${GITHUB_ENV}"
+          else
+            echo "DYLD_LIBRARY_PATH=${PHPX_HOME}/lib:${php_home}/lib" >> "${GITHUB_ENV}"
+          fi
+          php -v
+          php-config --configure-options
+
+      - name: Patch php_hash.h C++ compatibility
+        uses: ./.github/actions/patch-php-headers
+
+      - name: Install Composer dependencies
+        run: composer install --prefer-dist --no-progress
+
+      - name: Build PHPX
+        shell: bash
+        run: |
+          cmake -S "${PHPX_HOME}" -B "${PHPX_HOME}/build" \
+            -D CMAKE_BUILD_TYPE=Release \
+            -D BUILD_TESTS=OFF \
+            -D BUILD_EXT=OFF \
+            -D GITHUB_ACTION=ON \
+            -D php_dir="${PHP_HOME}"
+          cmake --build "${PHPX_HOME}/build" --target phpx --parallel 2
+          test -f "${PHPX_HOME}/lib/libphpx.${{ matrix.target.library_ext }}"
+
+      - name: Build tpc
+        shell: bash
+        run: |
+          php bin/tpc.php project.yml --job 2 --no-progress
+          test -x ./tpc
+          file ./tpc
+          file ./tpc | grep -Eiq 'arm64|aarch64|ARM aarch64'
+          ./tpc --version
+
+      - name: Run platform smoke test
+        shell: bash
+        run: |
+          smoke_root=".github/smoke/${{ matrix.target.smoke_dir }}"
+          ./tpc "${smoke_root}/project.yml" --job 1 --no-progress
+          smoke_binary="${smoke_root}/${{ matrix.target.smoke_binary }}"
+          test -x "${smoke_binary}"
+          output="$("${smoke_binary}")"
+          test "${output}" = '${{ matrix.target.smoke_output }}'
+
+      - name: Show native dependencies
+        shell: bash
+        run: |
+          if [[ '${{ matrix.target.os }}' == 'linux' ]]; then
+            ldd ./tpc
+          else
+            otool -L ./tpc
+          fi
+
+      - name: Package tested compiler
+        if: startsWith(github.ref, 'refs/tags/') && matrix.php == '8.5'
+        shell: bash
+        run: |
+          composer install --no-dev --prefer-dist --no-progress --classmap-authoritative
+          export TYPEPHP_PACKAGE_VERSION="${GITHUB_REF_NAME}"
+          php package.php
+          test "$(find . -maxdepth 1 -name 'tpc_v*_${{ matrix.target.os }}_${{ matrix.target.arch }}.tar.gz' -type f | wc -l)" -eq 1
+
+      - name: Upload release package
+        if: startsWith(github.ref, 'refs/tags/') && matrix.php == '8.5'
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-${{ matrix.target.os }}-${{ matrix.target.arch }}-php-${{ matrix.php }}-zts
+          if-no-files-found: error
+          retention-days: 1
+          path: tpc_v*_${{ matrix.target.os }}_${{ matrix.target.arch }}.tar.gz
+
+      - name: Upload platform build outputs
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: tpc-${{ matrix.target.os }}-${{ matrix.target.arch }}-php-${{ matrix.php }}-zts
+          include-hidden-files: true
+          if-no-files-found: warn
+          retention-days: 7
+          path: |
+            tpc
+            .github/smoke/${{ matrix.target.smoke_dir }}/${{ matrix.target.smoke_binary }}
+            .github/smoke/${{ matrix.target.smoke_dir }}/build/**/*.cc
+            .github/smoke/${{ matrix.target.smoke_dir }}/build/**/*.h
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 09311a68..65010f8e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -79,23 +79,30 @@ jobs:
 
           wait_for_workflow tests.yml TESTS_RUN_ID
           wait_for_workflow windows-build.yml WINDOWS_RUN_ID
+          wait_for_workflow platform-build.yml PLATFORM_RUN_ID
 
       - name: Download tested packages
         shell: bash
         run: |
           set -euo pipefail
-          mkdir -p dist/linux dist/windows
+          mkdir -p dist/linux-x64 dist/windows dist/platforms
           gh run download "${TESTS_RUN_ID}" \
               --repo "${GITHUB_REPOSITORY}" \
               --pattern 'release-linux-*' \
-              --dir dist/linux
+              --dir dist/linux-x64
           gh run download "${WINDOWS_RUN_ID}" \
               --repo "${GITHUB_REPOSITORY}" \
               --pattern 'release-windows-*' \
               --dir dist/windows
+          gh run download "${PLATFORM_RUN_ID}" \
+              --repo "${GITHUB_REPOSITORY}" \
+              --pattern 'release-*' \
+              --dir dist/platforms
 
-          test "$(find dist/linux -type f -name '*.tar.gz' | wc -l)" -eq 1
-          test "$(find dist/windows -type f -name '*.zip' | wc -l)" -eq 1
+          test "$(find dist -type f -name 'tpc_v*_linux_x64.tar.gz' | wc -l)" -eq 1
+          test "$(find dist -type f -name 'tpc_v*_linux_arm64.tar.gz' | wc -l)" -eq 1
+          test "$(find dist -type f -name 'tpc_v*_macos_arm64.tar.gz' | wc -l)" -eq 1
+          test "$(find dist -type f -name 'tpc_v*_windows_x64.zip' | wc -l)" -eq 1
 
       - name: Prepare release assets
         shell: bash
@@ -104,7 +111,7 @@ jobs:
           mkdir -p release-assets
           find dist -type f \( -name '*.tar.gz' -o -name '*.zip' \) \
               -exec cp '{}' release-assets/ \;
-          test "$(find release-assets -maxdepth 1 -type f \( -name '*.tar.gz' -o -name '*.zip' \) | wc -l)" -eq 2
+          test "$(find release-assets -maxdepth 1 -type f \( -name '*.tar.gz' -o -name '*.zip' \) | wc -l)" -eq 4
           (
               cd release-assets
               sha256sum ./*.tar.gz ./*.zip > SHA256SUMS
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f7f7099f..5b567cd7 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,7 +18,7 @@ env:
 
 jobs:
   build-phpx:
-    name: Build PHPX (PHP ${{ matrix.php }})
+    name: Build PHPX (PHP ${{ matrix.php }} ZTS)
     # Skip the whole test pipeline when the push commit message contains `--skip-tests`.
     if: ${{ startsWith(github.ref, 'refs/tags/') || !contains(github.event.head_commit.message || '', '--skip-tests') }}
     runs-on: ubuntu-22.04
@@ -47,6 +47,19 @@ jobs:
           coverage: none
           ini-values: precision=17, memory_limit=4G, error_reporting=E_ERROR|E_WARNING, display_errors=1, display_startup_errors=1, log_errors=0
           tools: composer:v2
+        env:
+          fail-fast: true
+          phpts: ts
+          update: true
+
+      - name: Verify ZTS PHP
+        shell: bash
+        run: |
+          php -r 'if (!PHP_ZTS) { fwrite(STDERR, "Expected a ZTS PHP build\n"); exit(1); }'
+          case "$(php -r 'echo PHP_VERSION;')" in
+            "${{ matrix.php }}"*) ;;
+            *) echo "setup-php installed an unexpected PHP version" >&2; exit 1 ;;
+          esac
 
       - name: Patch php_hash.h C++ compatibility
         uses: ./.github/actions/patch-php-headers
@@ -81,7 +94,7 @@ jobs:
       - name: Upload PHPX library
         uses: actions/upload-artifact@v4
         with:
-          name: libphpx-php-${{ matrix.php }}
+          name: libphpx-php-${{ matrix.php }}-zts
           if-no-files-found: error
           retention-days: 1
           path: vendor/swoole/phpx/lib/libphpx.so
@@ -89,13 +102,13 @@ jobs:
       - name: Upload phpy extension
         uses: actions/upload-artifact@v4
         with:
-          name: phpy-php-${{ matrix.php }}
+          name: phpy-php-${{ matrix.php }}-zts
           if-no-files-found: error
           retention-days: 1
           path: third_party/phpy/modules/phpy.so
 
   phpunit:
-    name: PHPUnit (PHP ${{ matrix.php }})
+    name: PHPUnit (PHP ${{ matrix.php }} ZTS)
     if: ${{ startsWith(github.ref, 'refs/tags/') || !contains(github.event.head_commit.message || '', '--skip-tests') }}
     runs-on: ubuntu-22.04
     timeout-minutes: 30
@@ -119,6 +132,19 @@ jobs:
           extensions: curl, redis, mbstring, ffi
           ini-values: ffi.enable=1, phpy.enable_operator_overloading=0, precision=17, memory_limit=4G, error_reporting=E_ERROR|E_WARNING, display_errors=1, display_startup_errors=1, log_errors=0
           tools: composer:v2
+        env:
+          fail-fast: true
+          phpts: ts
+          update: true
+
+      - name: Verify ZTS PHP
+        shell: bash
+        run: |
+          php -r 'if (!PHP_ZTS) { fwrite(STDERR, "Expected a ZTS PHP build\n"); exit(1); }'
+          case "$(php -r 'echo PHP_VERSION;')" in
+            "${{ matrix.php }}"*) ;;
+            *) echo "setup-php installed an unexpected PHP version" >&2; exit 1 ;;
+          esac
 
       - name: Patch php_hash.h C++ compatibility
         uses: ./.github/actions/patch-php-headers
@@ -134,13 +160,13 @@ jobs:
       - name: Download PHPX library
         uses: actions/download-artifact@v4
         with:
-          name: libphpx-php-${{ matrix.php }}
+          name: libphpx-php-${{ matrix.php }}-zts
           path: vendor/swoole/phpx/lib
 
       - name: Download phpy extension
         uses: actions/download-artifact@v4
         with:
-          name: phpy-php-${{ matrix.php }}
+          name: phpy-php-${{ matrix.php }}-zts
           path: third_party/phpy/modules
 
       - name: Enable phpy extension
@@ -160,7 +186,7 @@ jobs:
         run: vendor/bin/phpunit
 
   phpt:
-    name: PHPT (PHP ${{ matrix.php }})
+    name: PHPT (PHP ${{ matrix.php }} ZTS)
     if: ${{ startsWith(github.ref, 'refs/tags/') || !contains(github.event.head_commit.message || '', '--skip-tests') }}
     runs-on: ubuntu-22.04
     timeout-minutes: 180
@@ -184,9 +210,22 @@ jobs:
         with:
           php-version: ${{ matrix.php }}
           coverage: none
-          extensions: embed, curl, redis, mbstring, ffi
+          extensions: curl, redis, mbstring, ffi
           ini-values: ffi.enable=1, phpy.enable_operator_overloading=0, opcache.jit=0, precision=17, memory_limit=4G, error_reporting=E_ERROR|E_WARNING, display_errors=1, display_startup_errors=1, log_errors=0
           tools: composer:v2
+        env:
+          fail-fast: true
+          phpts: ts
+          update: true
+
+      - name: Verify ZTS PHP
+        shell: bash
+        run: |
+          php -r 'if (!PHP_ZTS) { fwrite(STDERR, "Expected a ZTS PHP build\n"); exit(1); }'
+          case "$(php -r 'echo PHP_VERSION;')" in
+            "${{ matrix.php }}"*) ;;
+            *) echo "setup-php installed an unexpected PHP version" >&2; exit 1 ;;
+          esac
 
       - name: Patch php_hash.h C++ compatibility
         uses: ./.github/actions/patch-php-headers
@@ -196,29 +235,15 @@ jobs:
           sudo apt-get update
           sudo apt-get install --yes build-essential cmake libgmp-dev libmpfr-dev pkg-config python3-dev
 
-      - name: Configure version-matched PHP embed library
+      - name: Configure ZTS PHP embed library
         shell: bash
         run: |
-          embed_package="libphp${{ matrix.php }}-embed"
-          php_version="$(php-config --version)"
-          embed_version="$(dpkg-query --show --showformat='${Version}' "${embed_package}")"
-          case "${embed_version}" in
-            "${php_version}"*) ;;
-            *) echo "PHP embed package ${embed_version} does not match PHP ${php_version}" >&2; exit 1 ;;
-          esac
-          embed_library="$(dpkg-query --listfiles "${embed_package}" \
-            | sed -n '/\/libphp[0-9][^/]*\.so$/ { p; q; }')"
-          test -n "${embed_library}"
+          php_home="$(php-config --prefix)"
+          embed_library="${php_home}/lib/libphp.so"
+          test -x "${php_home}/bin/php-config"
           test -f "${embed_library}"
-
-          php_home="${RUNNER_TEMP}/typephp-php-${{ matrix.php }}"
-          mkdir -p "${php_home}/bin" "${php_home}/include" "${php_home}/lib"
-          ln -s "$(command -v php-config)" "${php_home}/bin/php-config"
-          ln -s "$(php-config --include-dir)" "${php_home}/include/php"
-          ln -s "${embed_library}" "${php_home}/lib/libphp.so"
-
           echo "PHP_HOME=${php_home}" >> "${GITHUB_ENV}"
-          echo "Using ${embed_library} from ${embed_package} ${embed_version} for PHP ${php_version}"
+          echo "Using ZTS PHP $(php-config --version) embed library: ${embed_library}"
 
       - name: Install Composer dependencies
         run: composer install --prefer-dist --no-progress
@@ -226,13 +251,13 @@ jobs:
       - name: Download PHPX library
         uses: actions/download-artifact@v4
         with:
-          name: libphpx-php-${{ matrix.php }}
+          name: libphpx-php-${{ matrix.php }}-zts
           path: vendor/swoole/phpx/lib
 
       - name: Download phpy extension
         uses: actions/download-artifact@v4
         with:
-          name: phpy-php-${{ matrix.php }}
+          name: phpy-php-${{ matrix.php }}-zts
           path: third_party/phpy/modules
 
       - name: Enable phpy extension
@@ -284,7 +309,7 @@ jobs:
         if: startsWith(github.ref, 'refs/tags/') && matrix.php == '8.5'
         uses: actions/upload-artifact@v4
         with:
-          name: release-linux-php-${{ matrix.php }}
+          name: release-linux-x64-php-${{ matrix.php }}-zts
           if-no-files-found: error
           retention-days: 1
           path: tpc_v*_linux_*.tar.gz
@@ -293,7 +318,7 @@ jobs:
         if: failure()
         uses: actions/upload-artifact@v4
         with:
-          name: phpt-failures-php-${{ matrix.php }}
+          name: phpt-failures-linux-x64-php-${{ matrix.php }}-zts
           if-no-files-found: ignore
           retention-days: 7
           path: |
diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index 27cf8cf2..3545c251 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -18,14 +18,13 @@ env:
 
 jobs:
   build-tpc:
-    name: tpc.exe (PHP ${{ matrix.php }} ${{ matrix.thread_safety }})
+    name: tpc.exe (PHP ${{ matrix.php }} ZTS)
     runs-on: windows-2022
     timeout-minutes: 90
     strategy:
       fail-fast: false
       matrix:
         php: ["8.4", "8.5"]
-        thread_safety: [nts, zts]
 
     steps:
       - name: Checkout TypePHP
@@ -40,7 +39,7 @@ jobs:
           tools: composer:v2
         env:
           fail-fast: true
-          phpts: ${{ matrix.thread_safety == 'zts' && 'ts' || 'nts' }}
+          phpts: ts
           update: true
 
       - name: Resolve PHP build environment
@@ -50,9 +49,12 @@ jobs:
           $ErrorActionPreference = 'Stop'
 
           $phpVersion = php -r 'echo PHP_VERSION;'
+          if (-not $phpVersion.StartsWith('${{ matrix.php }}.')) {
+              throw "setup-php installed PHP $phpVersion, expected ${{ matrix.php }}.x"
+          }
           $threadSafety = php -r 'echo PHP_ZTS ? "zts" : "nts";'
-          if ($threadSafety -ne '${{ matrix.thread_safety }}') {
-              throw "setup-php installed $threadSafety PHP, expected ${{ matrix.thread_safety }}"
+          if ($threadSafety -ne 'zts') {
+              throw "setup-php installed $threadSafety PHP, expected zts"
           }
           $zipAvailable = php -r 'echo class_exists("ZipArchive") ? "yes" : "no";'
           if ($zipAvailable -ne 'yes') {
@@ -60,8 +62,7 @@ jobs:
           }
           $phpExe = (Get-Command php).Source
           $phpHome = Split-Path -Parent $phpExe
-          $threadSuffix = if ($threadSafety -eq 'nts') { '-nts' } else { '' }
-          $archiveName = "php-devel-pack-$phpVersion$threadSuffix-Win32-vs17-x64.zip"
+          $archiveName = "php-devel-pack-$phpVersion-Win32-vs17-x64.zip"
           $archive = Join-Path $env:RUNNER_TEMP $archiveName
 
           "PHP_VERSION=$phpVersion" | Out-File $env:GITHUB_ENV -Append -Encoding utf8
@@ -108,7 +109,7 @@ jobs:
                   }
               }
               if (-not $downloaded) {
-                  throw "Unable to download the PHP $phpVersion NTS development pack"
+                  throw "Unable to download the PHP $phpVersion ZTS development pack"
               }
           }
 
@@ -133,8 +134,8 @@ jobs:
           }
           Copy-Item $embedLibrary $sdkLib -Force
 
-          $coreLibrary = if ($threadSafety -eq 'zts') { 'php8ts.lib' } else { 'php8.lib' }
-          $runtimeLibrary = if ($threadSafety -eq 'zts') { 'php8ts.dll' } else { 'php8.dll' }
+          $coreLibrary = 'php8ts.lib'
+          $runtimeLibrary = 'php8ts.dll'
 
           # Temporary compatibility fix for PHP packages predating php/php-src#22940.
           $hashHeader = Join-Path $sdkInclude 'ext\hash\php_hash.h'
@@ -379,7 +380,7 @@ jobs:
 
           $processInfo = [Diagnostics.ProcessStartInfo]::new()
           $processInfo.FileName = $smokeExe
-          $processInfo.ArgumentList.Add('${{ matrix.thread_safety }}')
+          $processInfo.ArgumentList.Add('zts')
           $processInfo.UseShellExecute = $false
           $processInfo.RedirectStandardOutput = $true
           $processInfo.RedirectStandardError = $true
@@ -399,12 +400,12 @@ jobs:
           if ($process.ExitCode -ne 0) {
               throw "Windows smoke executable failed with exit code $($process.ExitCode)"
           }
-          if ($stdout.Trim() -ne 'windows-smoke-ok:${{ matrix.thread_safety }}') {
+          if ($stdout.Trim() -ne 'windows-smoke-ok:zts') {
               throw "Unexpected Windows smoke output: $stdout"
           }
 
       - name: Package tested Windows compiler
-        if: startsWith(github.ref, 'refs/tags/') && matrix.php == '8.5' && matrix.thread_safety == 'zts'
+        if: startsWith(github.ref, 'refs/tags/') && matrix.php == '8.5'
         shell: pwsh
         run: |
           $ErrorActionPreference = 'Stop'
@@ -425,10 +426,10 @@ jobs:
           }
 
       - name: Upload Windows release package
-        if: startsWith(github.ref, 'refs/tags/') && matrix.php == '8.5' && matrix.thread_safety == 'zts'
+        if: startsWith(github.ref, 'refs/tags/') && matrix.php == '8.5'
         uses: actions/upload-artifact@v4
         with:
-          name: release-windows-php-${{ matrix.php }}-${{ matrix.thread_safety }}
+          name: release-windows-x64-php-${{ matrix.php }}-zts
           if-no-files-found: error
           retention-days: 1
           path: tpc_v*_windows_*.zip
@@ -437,7 +438,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
-          name: tpc-windows-x64-php-${{ matrix.php }}-${{ matrix.thread_safety }}
+          name: tpc-windows-x64-php-${{ matrix.php }}-zts
           if-no-files-found: warn
           retention-days: 7
           path: |
diff --git a/README-CN.md b/README-CN.md
index b1cb0304..9bd4c11b 100644
--- a/README-CN.md
+++ b/README-CN.md
@@ -83,7 +83,7 @@ AST，待全部项目符号就绪后再在 convert 阶段解析。这一两阶
   `#[Printer]` 和 `#[Arrayable]` 根据属性声明生成类型安全的方法。
 - **现代 PHP 支持** —— PHP 8.4 property hooks、非对称可见性、PHP 8.5
   `clone()`-with 以及 `(void)` 丢弃表达式。
-- **跨平台与 WASM** —— 面向 x86-64 和 ARM64 的 Linux、Windows、macOS 目标，
+- **跨平台与 WASM** —— 面向 x64 和 ARM64 的 Linux、Windows、macOS 目标，
   以及 WASI 0.2 和浏览器（Jco）输出。
 - **Python 桥接** —— 为 Python 模块生成 IDE helper，并将 Python 脚本转换为 TypePHP。
 
@@ -114,7 +114,8 @@ AST，待全部项目符号就绪后再在 convert 阶段解析。这一两阶
 ## 前置要求
 
 - **PHP 8.4 – 8.5** CLI、开发头文件及 `php-config`
-- 在类 Unix 系统构建二进制/共享库时，需要与 PHP 匹配的 **embed 库**（`libphp.so`）
+- 在类 Unix 系统构建二进制/共享库时，需要与 PHP 匹配的 **embed 库**
+  （`libphp.so` 或 `libphp.dylib`）
 - **GCC 9+**（或 Clang），支持 **C++17**
 - **CMake 3.24+**
 - **Composer 2**
@@ -134,10 +135,15 @@ sudo pacman -S base-devel cmake pkgconf gmp mpfr
 > GMP 用于 `bigInt`，MPFR 用于 `bigFloat`。`decimal` 底层是 libmpdec，
 > 已随 PHPX 内置，无需单独安装。
 
-Linux 是主要开发和 CI 平台。编译器也提供 Windows、macOS、x86-64、ARM64 和
+Linux x64 是主要开发及全量测试 CI 平台。编译器也提供 Windows、macOS、ARM64 和
 WASI 后端；具体主机能否构建某个目标，仍取决于 PHP embed、工具链和第三方库是否
 可用。
 
+原生 Release Assets 默认使用 PHP 8.5 ZTS 的最新版本构建，提供 Linux x64、Linux
+ARM64、macOS ARM64 和 Windows x64 四个平台包；不提供原生 NTS 或 32 位 x86 包。
+Linux 与 macOS 包包含编译器和 production Composer 依赖，Windows 包则包含完整且
+匹配的 PHP/PHPX 运行时与 SDK。
+
 ## 安装
 
 ### 通过 Composer
@@ -601,7 +607,7 @@ source <(./tpc --generate-completion=bash)
 
 ## 常见问题
 
-- **缺少 `libphp.so`：** 安装或编译与当前 PHP 匹配的 embed SAPI，设置
+- **缺少 `libphp.so` / `libphp.dylib`：** 安装或编译与当前 PHP 匹配的 embed SAPI，设置
   `PHP_HOME`，或使用 `bin/tpc.php` 在 Linux 上提供的交互式安装流程。
 - **找不到 PHPX：** 将 `PHPX_HOME` 指向包含 `include/` 和
   `lib/libphpx.so`（或对应平台文件）的 PHPX 安装目录，并在编译项目前先构建 PHPX。
diff --git a/README.md b/README.md
index 599563bc..1249f7cc 100644
--- a/README.md
+++ b/README.md
@@ -97,7 +97,7 @@ This two-phase design keeps multi-file and self-hosted builds deterministic.
   from property declarations.
 - **Modern PHP support** — PHP 8.4 property hooks, asymmetric visibility,
   PHP 8.5 `clone()`-with, and `(void)` discard expressions.
-- **Cross-platform & WASM** — Linux, Windows, and macOS targets for x86-64 and
+- **Cross-platform & WASM** — Linux, Windows, and macOS targets for x64 and
   ARM64, plus WASI 0.2 and browser (Jco) output.
 - **Python bridge** — generate IDE helpers for Python modules and convert
   Python scripts to TypePHP.
@@ -134,7 +134,7 @@ This two-phase design keeps multi-file and self-hosted builds deterministic.
 ## Requirements
 
 - **PHP 8.4 – 8.5** CLI, development headers, and `php-config`
-- The matching **PHP embed library** (`libphp.so`) for binary/shared-library
+- The matching **PHP embed library** (`libphp.so` or `libphp.dylib`) for binary/shared-library
   builds on Unix-like systems
 - **GCC 9+** (or Clang) with **C++17**
 - **CMake 3.24+**
@@ -155,11 +155,17 @@ sudo pacman -S base-devel cmake pkgconf gmp mpfr
 > GMP powers `bigInt` and MPFR powers `bigFloat`. The `decimal` type is backed
 > by libmpdec, which is bundled with PHPX — no separate install required.
 
-Linux is the primary development and CI platform. The compiler also has
-Windows, macOS, x86-64, ARM64, and WASI backends; availability of PHP embed,
+Linux x64 is the primary development and full-test CI platform. The compiler
+also has Windows, macOS, ARM64, and WASI backends; availability of PHP embed,
 toolchain, and third-party libraries still determines which target can be
 built on a given host.
 
+Native release assets are built with the latest PHP 8.5 ZTS release. TypePHP
+publishes Linux x64, Linux ARM64, macOS ARM64, and Windows x64 packages. Native
+NTS and 32-bit x86 packages are not provided. Linux and macOS archives contain
+the compiler and production Composer dependencies, while the Windows archive
+contains the complete matching PHP/PHPX runtime and SDK.
+
 ## Installation
 
 ### Via Composer
@@ -644,7 +650,7 @@ source <(./tpc --generate-completion=bash)
 
 ## Troubleshooting
 
-- **`libphp.so` is missing:** install/build the matching PHP embed SAPI, set
+- **`libphp.so` / `libphp.dylib` is missing:** install/build the matching PHP embed SAPI, set
   `PHP_HOME`, or let `bin/tpc.php` offer the interactive Linux installer.
 - **PHPX cannot be found:** set `PHPX_HOME` to a PHPX installation containing
   `include/` and `lib/libphpx.so` (or the platform equivalent), then build PHPX
diff --git a/package.php b/package.php
index b80d27b5..5d0e430c 100755
--- a/package.php
+++ b/package.php
@@ -15,9 +15,9 @@ if (!chdir(__DIR__)) {
 if (in_array('--help', $argv ?? [], true) || in_array('-h', $argv ?? [], true)) {
     echo "Usage: php package.php\n\n";
     echo "Windows: requires PHP_HOME and PHPX_HOME; creates a self-contained SDK package.\n";
-    echo "Linux: uses strip; packages the tested ELF and Composer vendor tree.\n";
-    echo "macOS: uses strip when available; packages the native binary and release metadata.\n";
-    echo "Supported architectures: 64-bit CPUs, including x86_64 and ARM64.\n";
+    echo "Linux: uses strip; packages the tested ELF and production Composer vendor tree.\n";
+    echo "macOS: uses strip; packages the tested Mach-O binary and production Composer vendor tree.\n";
+    echo "Supported architectures: 64-bit CPUs, including x64 and ARM64.\n";
     exit(0);
 }
 
@@ -529,7 +529,7 @@ function normalizeArchitecture(string $architecture): string
 {
     $architecture = strtolower(trim($architecture));
     $normalized = match ($architecture) {
-        'x86_64', 'x86-64', 'amd64', 'x64' => 'x86_64',
+        'x86_64', 'x86-64', 'amd64', 'x64' => 'x64',
         'aarch64', 'arm64', 'arm64b', 'arm64e' => 'arm64',
         'powerpc64', 'ppc64' => 'ppc64',
         'powerpc64le', 'ppc64le' => 'ppc64le',
@@ -568,54 +568,19 @@ function packageUnixLike(): void
     $arch = normalizeArchitecture(php_uname('m'));
 
     $binary = 'tpc';
-    $requiredFiles = [$binary];
-    if ($osType === 'linux') {
-        $requiredFiles[] = 'vendor/autoload.php';
-        $requiredFiles[] = 'vendor/composer/installed.php';
-    } else {
-        $phpxSourceDir = getenv('PHPX_HOME');
-        if (!is_string($phpxSourceDir) || $phpxSourceDir === '' || !is_dir($phpxSourceDir)) {
-            $phpxSourceDir = 'vendor/swoole/phpx';
-        }
-        $phpxSourceDir = realpath($phpxSourceDir) ?: rtrim($phpxSourceDir, '/\\');
-        $wasiSdkSourceRoot = $phpxSourceDir . '/wasm/wasm32-wasip2';
-        $wasiSdkPackageRoot = 'vendor/swoole/phpx/wasm/wasm32-wasip2';
-        array_push(
-            $requiredFiles,
-            'composer.json',
-            'README.md',
-            'LICENSE',
-            'examples/hello.php',
-            'completions/tpc.bash',
-            'wasm/build-program.sh',
-            "{$wasiSdkSourceRoot}/.typephp-wasi-sdk-abi",
-            "{$wasiSdkSourceRoot}/include/php/main/php.h",
-            "{$wasiSdkSourceRoot}/include/php/main/php_config.h",
-            "{$wasiSdkSourceRoot}/include/php/Zend/zend_config.h",
-            "{$wasiSdkSourceRoot}/include/php/ext/date/lib/timelib_config.h",
-            "{$wasiSdkSourceRoot}/include/phpx/phpx.h",
-            "{$wasiSdkSourceRoot}/include/phpx/phpx_python.h",
-            "{$wasiSdkSourceRoot}/include/phpx/typephp_helper.h",
-            "{$wasiSdkSourceRoot}/include/gmp.h",
-            "{$wasiSdkSourceRoot}/include/mpfr.h",
-            "{$wasiSdkSourceRoot}/include/decimal.hh",
-        );
-        foreach (['libphp.a', 'libphpx.a', 'libgmp.a', 'libgmpxx.a', 'libmpfr.a', 'libmpdec.a', 'libmpdec++.a'] as $library) {
-            $requiredFiles[] = "{$wasiSdkSourceRoot}/lib/{$library}";
-        }
-    }
+    $requiredFiles = [
+        $binary,
+        'vendor/autoload.php',
+        'vendor/composer/installed.php',
+    ];
     foreach ($requiredFiles as $file) {
         if (!is_file($file)) {
             throw new RuntimeException("Required package file not found: {$file}");
         }
     }
-    if ($osType !== 'linux' && !class_exists('ZipArchive')) {
-        throw new RuntimeException('The ZipArchive extension is required');
-    }
-
     $versionId = resolvePackageVersion();
     $topLevelDir = "tpc_v{$versionId}_{$osType}_{$arch}";
-    $outputFile = $topLevelDir . ($osType === 'linux' ? '.tar.gz' : '.zip');
+    $outputFile = $topLevelDir . '.tar.gz';
 
     echo "========================================\n";
     echo "TypePHP {$osType} package\n";
@@ -669,129 +634,58 @@ function packageUnixLike(): void
         throw new RuntimeException("strip failed:\n" . implode("\n", $stripOutput));
     }
 
-    if ($osType === 'linux') {
-        // Linux release binaries intentionally use the target system's libphp,
-        // libphpx, and other native dependencies. Composer sources and headers
-        // are portable, but test-built host libraries must not enter the archive.
-        mustCreateDirectory("{$topLevelDir}/vendor");
-        copyDirectory(
-            'vendor',
-            "{$topLevelDir}/vendor",
-            [],
-            null,
-            ['a', 'dll', 'dylib', 'exe', 'exp', 'lib', 'o', 'obj', 'pdb', 'so'],
-        );
-    } else {
-        mustCopy('composer.json', "{$topLevelDir}/composer.json");
-        mustCopy('README.md', "{$topLevelDir}/README.md");
-        mustCopy('LICENSE', "{$topLevelDir}/LICENSE");
-        mustCreateDirectory("{$topLevelDir}/examples");
-        mustCopy('examples/hello.php', "{$topLevelDir}/examples/hello.php");
-        mustCreateDirectory("{$topLevelDir}/completions");
-        mustCopy('completions/tpc.bash', "{$topLevelDir}/completions/tpc.bash");
-        copyDirectory('wasm', "{$topLevelDir}/wasm");
-        // Host tools are installed independently; only the target SDK is bundled.
-        copyDirectory(
-            "{$phpxSourceDir}/wasm",
-            "{$topLevelDir}/vendor/swoole/phpx/wasm",
-            ['bin'],
-        );
-    }
+    // Linux and macOS releases intentionally use the target system's libphp,
+    // libphpx, and other native dependencies. Composer sources and headers are
+    // portable, but test-built host libraries must not enter the archive.
+    mustCreateDirectory("{$topLevelDir}/vendor");
+    copyDirectory(
+        'vendor',
+        "{$topLevelDir}/vendor",
+        [],
+        null,
+        ['a', 'dll', 'dylib', 'exe', 'exp', 'lib', 'o', 'obj', 'pdb', 'so'],
+    );
 
-    $requiredEntries = ["{$topLevelDir}/{$binary}"];
-    if ($osType === 'linux') {
-        $requiredEntries[] = "{$topLevelDir}/vendor/autoload.php";
-        $requiredEntries[] = "{$topLevelDir}/vendor/composer/installed.php";
-    } else {
-        array_push(
-            $requiredEntries,
-            "{$topLevelDir}/composer.json",
-            "{$topLevelDir}/README.md",
-            "{$topLevelDir}/LICENSE",
-            "{$topLevelDir}/examples/hello.php",
-            "{$topLevelDir}/completions/tpc.bash",
-            "{$topLevelDir}/wasm/build-program.sh",
-            "{$topLevelDir}/{$wasiSdkPackageRoot}/.typephp-wasi-sdk-abi",
-            "{$topLevelDir}/{$wasiSdkPackageRoot}/include/php/main/php.h",
-            "{$topLevelDir}/{$wasiSdkPackageRoot}/include/phpx/phpx.h",
-        );
-        foreach (['libphp.a', 'libphpx.a', 'libgmp.a', 'libgmpxx.a', 'libmpfr.a', 'libmpdec.a', 'libmpdec++.a'] as $library) {
-            $requiredEntries[] = "{$topLevelDir}/{$wasiSdkPackageRoot}/lib/{$library}";
+    $requiredEntries = [
+        "{$topLevelDir}/{$binary}",
+        "{$topLevelDir}/vendor/autoload.php",
+        "{$topLevelDir}/vendor/composer/installed.php",
+    ];
+    $files = new RecursiveIteratorIterator(
+        new RecursiveDirectoryIterator(
+            "{$topLevelDir}/vendor",
+            FilesystemIterator::SKIP_DOTS,
+        ),
+        RecursiveIteratorIterator::LEAVES_ONLY,
+    );
+    foreach ($files as $file) {
+        if ($file->isFile() && isNativeLibraryPath($file->getPathname())) {
+            throw new RuntimeException(
+                "{$osType} package unexpectedly contains a native library: {$file->getPathname()}",
+            );
         }
     }
-    if ($osType === 'linux') {
-        $files = new RecursiveIteratorIterator(
-            new RecursiveDirectoryIterator(
-                "{$topLevelDir}/vendor",
-                FilesystemIterator::SKIP_DOTS,
-            ),
-            RecursiveIteratorIterator::LEAVES_ONLY,
-        );
-        foreach ($files as $file) {
-            if ($file->isFile() && isNativeLibraryPath($file->getPathname())) {
-                throw new RuntimeException(
-                    "Linux package unexpectedly contains a native library: {$file->getPathname()}",
-                );
-            }
-        }
 
-        exec('command -v tar 2>/dev/null', $tarPath, $tarStatus);
-        if ($tarStatus !== 0) {
-            throw new RuntimeException('tar is required for Linux packaging');
-        }
-        exec(
-            'tar -czf ' . escapeshellarg($outputFile) . ' ' . escapeshellarg($topLevelDir) . ' 2>&1',
-            $tarOutput,
-            $tarStatus,
-        );
-        if ($tarStatus !== 0) {
-            throw new RuntimeException("tar failed:\n" . implode("\n", $tarOutput));
-        }
-        exec('tar -tzf ' . escapeshellarg($outputFile) . ' 2>&1', $archiveEntries, $tarStatus);
-        if ($tarStatus !== 0) {
-            throw new RuntimeException("Unable to verify archive:\n" . implode("\n", $archiveEntries));
-        }
-        foreach ($requiredEntries as $entry) {
-            if (!in_array($entry, $archiveEntries, true)) {
-                throw new RuntimeException("Archive is missing required entry: {$entry}");
-            }
-        }
-    } else {
-        $zip = new ZipArchive();
-        if ($zip->open($outputFile, ZipArchive::CREATE | ZipArchive::OVERWRITE) !== true) {
-            throw new RuntimeException("Unable to create archive: {$outputFile}");
-        }
-        $files = new RecursiveIteratorIterator(
-            new RecursiveDirectoryIterator($topLevelDir, FilesystemIterator::SKIP_DOTS),
-            RecursiveIteratorIterator::LEAVES_ONLY,
-        );
-        foreach ($files as $file) {
-            if (!$file->isFile()) {
-                continue;
-            }
-            $relativePath = str_replace('\\', '/', substr(
-                $file->getPathname(),
-                strlen($topLevelDir) + 1,
-            ));
-            if (!$zip->addFile($file->getPathname(), "{$topLevelDir}/{$relativePath}")) {
-                throw new RuntimeException("Unable to add archive entry: {$file->getPathname()}");
-            }
-        }
-        if (!$zip->close()) {
-            throw new RuntimeException("Unable to finish archive: {$outputFile}");
-        }
-
-        $verificationZip = new ZipArchive();
-        if ($verificationZip->open($outputFile) !== true) {
-            throw new RuntimeException("Unable to verify archive: {$outputFile}");
-        }
-        foreach ($requiredEntries as $entry) {
-            if ($verificationZip->locateName($entry) === false) {
-                $verificationZip->close();
-                throw new RuntimeException("Archive is missing required entry: {$entry}");
-            }
+    exec('command -v tar 2>/dev/null', $tarPath, $tarStatus);
+    if ($tarStatus !== 0) {
+        throw new RuntimeException('tar is required for Unix-like packaging');
+    }
+    exec(
+        'tar -czf ' . escapeshellarg($outputFile) . ' ' . escapeshellarg($topLevelDir) . ' 2>&1',
+        $tarOutput,
+        $tarStatus,
+    );
+    if ($tarStatus !== 0) {
+        throw new RuntimeException("tar failed:\n" . implode("\n", $tarOutput));
+    }
+    exec('tar -tzf ' . escapeshellarg($outputFile) . ' 2>&1', $archiveEntries, $tarStatus);
+    if ($tarStatus !== 0) {
+        throw new RuntimeException("Unable to verify archive:\n" . implode("\n", $archiveEntries));
+    }
+    foreach ($requiredEntries as $entry) {
+        if (!in_array($entry, $archiveEntries, true)) {
+            throw new RuntimeException("Archive is missing required entry: {$entry}");
         }
-        $verificationZip->close();
     }
 
     removeDirectory($topLevelDir);