diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..449ba71
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,194 @@
+
+# Created by https://www.toptal.com/developers/gitignore/api/autotools,cmake,phpstorm
+# Edit at https://www.toptal.com/developers/gitignore?templates=autotools,cmake,phpstorm
+
+### Autotools ###
+# http://www.gnu.org/software/automake
+
+Makefile.in
+/ar-lib
+/mdate-sh
+/py-compile
+/test-driver
+/ylwrap
+.deps/
+
+# http://www.gnu.org/software/autoconf
+
+autom4te.cache
+/autoscan.log
+/autoscan-*.log
+/aclocal.m4
+/compile
+/config.guess
+/config.h.in
+/config.log
+/config.status
+/config.sub
+/configure
+/configure.scan
+/depcomp
+/install-sh
+/missing
+/stamp-h1
+
+# https://www.gnu.org/software/libtool/
+
+/ltmain.sh
+
+# http://www.gnu.org/software/texinfo
+
+/texinfo.tex
+
+# http://www.gnu.org/software/m4/
+
+m4/libtool.m4
+m4/ltoptions.m4
+m4/ltsugar.m4
+m4/ltversion.m4
+m4/lt~obsolete.m4
+
+# Generated Makefile
+# (meta build system like autotools,
+# can automatically generate from config.status script
+# (which is called by configure script))
+Makefile
+
+### Autotools Patch ###
+
+### CMake ###
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+
+### CMake Patch ###
+# External projects
+*-prefix/
+
+### PhpStorm ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### PhpStorm Patch ###
+# Comment Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-215987721
+
+# *.iml
+# modules.xml
+# .idea/misc.xml
+# *.ipr
+
+# Sonarlint plugin
+# https://plugins.jetbrains.com/plugin/7973-sonarlint
+.idea/**/sonarlint/
+
+# SonarQube Plugin
+# https://plugins.jetbrains.com/plugin/7238-sonarqube-community-plugin
+.idea/**/sonarIssues.xml
+
+# Markdown Navigator plugin
+# https://plugins.jetbrains.com/plugin/7896-markdown-navigator-enhanced
+.idea/**/markdown-navigator.xml
+.idea/**/markdown-navigator-enh.xml
+.idea/**/markdown-navigator/
+
+# Cache file creation bug
+# See https://youtrack.jetbrains.com/issue/JBR-2257
+.idea/$CACHE_FILE$
+
+# CodeStream plugin
+# https://plugins.jetbrains.com/plugin/12206-codestream
+.idea/codestream.xml
+
+# End of https://www.toptal.com/developers/gitignore/api/autotools,cmake,phpstorm
+
+.deps
+.libs/
+build/
+configure.in
+mkinstalldirs
+run-tests.php
+Makefile.global
+acinclude.m4
+libtool
+modules/
+*.lo
+config.h
+config.nice
+*.la
+Makefile*
diff --git a/config.m4 b/config.m4
new file mode 100644
index 0000000..b0ff2a4
--- /dev/null
+++ b/config.m4
@@ -0,0 +1,30 @@
+dnl
+dnl * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+dnl * SPDX-License-Identifier: Apache-2.0.
+dnl
+
+PHP_ARG_WITH(awscrt)
+
+if test "$PHP_AWSCRT" != "no"; then
+    AC_MSG_CHECKING([for libcrypto])
+    for search_path in "$AWS_LIBCRYTO_INSTALL" "$PHP_AWSCRT/build/deps/openssl" /opt/openssl /usr/local /usr; do
+        if test -f "$search_path/include/openssl/crypto.h"; then
+            LIBCRYPTO_PATH=$search_path
+            break
+        fi
+    done
+    if test -z "$LIBCRYPTO_PATH"; then
+        AC_MSG_ERROR([not found])
+    fi
+
+    AC_MSG_RESULT([found at $LIBCRYPTO_PATH])
+
+    PHP_ADD_INCLUDE($LIBCRYPTO_PATH/include)
+    dnl PHP_ADD_LIBPATH($LIBCRYPTO_PATH/lib)
+    PHP_ADD_LIBRARY_WITH_PATH(:libcrypto.a, $LIBCRYPTO_PATH/lib, AWSCRT_SHARED_LIBADD)
+
+    AWSCRT_SOURCES=src/*.c
+
+    PHP_NEW_EXTENSION(awscrt, $AWSCRT_SOURCES, $ext_shared)
+    PHP_SUBST(AWSCRT_SHARED_LIBADD)
+fi
diff --git a/src/crt.c b/src/crt.c
new file mode 100644
index 0000000..d5c88e4
--- /dev/null
+++ b/src/crt.c
@@ -0,0 +1,54 @@
+
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include "php_aws_crt.h"
+
+ZEND_DECLARE_MODULE_GLOBALS(awscrt);
+
+PHP_INI_BEGIN()
+STD_PHP_INI_ENTRY("awscrt.log_level", "", PHP_INI_ALL, OnUpdateLongGEZero, log_level, zend_awscrt_globals, awscrt_globals)
+PHP_INI_END()
+
+static PHP_MINIT_FUNCTION(awscrt)
+{
+    REGISTER_INI_ENTRIES();
+    return SUCCESS;
+}
+
+static PHP_MSHUTDOWN_FUNCTION(awscrt)
+{
+    UNREGISTER_INI_ENTRIES();
+
+    return SUCCESS;
+}
+
+static PHP_GINIT_FUNCTION(awscrt)
+{
+#if defined(COMPILE_DL_ASTKIT) && defined(ZTS)
+    ZEND_TSRMLS_CACHE_UPDATE();
+#endif
+    awscrt_globals->log_level = 0;
+}
+
+zend_module_entry awscrt_module_entry = {
+    STANDARD_MODULE_HEADER,
+    "awscrt",
+    NULL, /* functions */
+    PHP_MINIT(awscrt),
+    PHP_MSHUTDOWN(awscrt),
+    NULL, /* RINIT */
+    NULL, /* RSHUTDOWN */
+    NULL, /* MINFO */
+    NO_VERSION_YET,
+    PHP_MODULE_GLOBALS(awscrt),
+    PHP_GINIT(awscrt),
+    NULL, /* GSHUTDOWN */
+    NULL, /* RPOSTSHUTDOWN */
+    STANDARD_MODULE_PROPERTIES_EX};
+
+#ifdef COMPILE_DL_AWSCRT
+ZEND_GET_MODULE(awscrt)
+#endif
diff --git a/src/php_aws_crt.h b/src/php_aws_crt.h
new file mode 100644
index 0000000..d5b3bbf
--- /dev/null
+++ b/src/php_aws_crt.h
@@ -0,0 +1,24 @@
+
+#ifndef PHP_AWS_CRT_H
+#define PHP_AWS_CRT_H
+
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+
+ZEND_BEGIN_MODULE_GLOBALS(awscrt)
+long log_level;
+ZEND_END_MODULE_GLOBALS(awscrt)
+
+ZEND_EXTERN_MODULE_GLOBALS(awscrt)
+
+#define AWSCRT_GLOBAL(v) ZEND_MODULE_GLOBALS_ACCESSOR(awscrt, v)
+
+#endif /* PHP_AWS_CRT_H */