diff --git a/.flake8 b/.flake8
index 4c6ab14..5d34c95 100644
--- a/.flake8
+++ b/.flake8
@@ -1,6 +1,6 @@
 [flake8]
 per-file-ignores = 
     */__init__.py:F401
-exclude = ['.git', '__pycache__', 'docs/source/conf.py', 'old', 'build', 'dist']
+exclude = .git,__pycache__,docs/source/conf.py,old,build,dist,.venv
 max-line-length = 120
 count = true
\ No newline at end of file
diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index 17b1b74..bea6852 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -10,16 +10,29 @@ on:
     branches: [ "main" ]
 
 jobs:
-  build:
+  pep8:
     runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v5
+      with:
+        python-version: 3.12
+    - name: Install Python dependencies
+      run: |
+        python -m pip install poetry
+        poetry install --sync --with dev
+    - name: Lint with flake8
+      run: |
+        poetry run flake8 . --count
+  test:
+    needs: pep8
+    runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         python-version: ["3.11", "3.12"]
         os: [ubuntu-latest, macos-latest]
-    env:
-      OS: ${{ matrix.os }}
-      PYTHON: ${{ matrix.python-version }}
 
     steps:
     - uses: actions/checkout@v4
@@ -33,26 +46,26 @@ jobs:
         cd GmSSL && git checkout tags/v3.1.1
         mkdir build && cd build && cmake ..
         make && make test && sudo make install
-        sudo ldconfig
+        if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+            sudo ldconfig
+        elif [[ "$OSTYPE" == "darwin"* ]]; then
+            sudo update_dyld_shared_cache
+        fi
         gmssl version
         cd ../../
     - name: Install Python dependencies
       run: |
         python -m pip install poetry
         poetry install --sync --with dev
-    - name: Lint with flake8
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        poetry run flake8 ./src --count --exit-zero
     - name: Test with pytest
       run: |
-        poetry run pytest --cov=src/pygmssl --cov-report=xml
+        poetry run pytest --cov=src --cov-report=xml
     - name: Upload coverage reports to Codecov
       uses: codecov/codecov-action@v4
       with:
         env_vars: OS,PYTHON
         fail_ci_if_error: true # optional (default = false)
         flags: unittests
-        name: codecov-umbrella # optional
+        name: codecov-umbrella-python${{ matrix.python-version }}-${{ matrix.os }} # optional
         token: ${{ secrets.CODECOV_TOKEN }}
         verbose: true # optional (default = false)
diff --git a/pyproject.toml b/pyproject.toml
index 85e0e4b..e1c8b17 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,47 +1,22 @@
-[project]
+[tool.poetry]
 name = "pygmssl"
-dynamic = ["version"]
-authors = [{ name = "Zhang Jie", email = "zhangj_10ujs@foxmail.com" }]
-description = "A Python ctypes GmSSL implementation"
+version = "0.1.0"
+description = "A Python ctypes implementation of GmSSLv3.1.1"
+license = "MIT"
+authors = ["Zhang Jie <zhangj_10ujs@foxmail.com>"]
+maintainers = ["Zhang Jie <zhangj_10ujs@foxmail.com>"]
 readme = "README.md"
-requires-python = ">=3.10"
-dependencies = ["pycryptodomex>=3.17"]
-keywords=["国密", "SM2", "SM3", "SM4"]
+homepage = "https://github.com/j-z10/pygmssl"
+keywords=["国密", "GmSSL", "gmssl", "sm2", "sm3", "sm4"]
 classifiers = [
-    "Development Status :: 2 - Pre-Alpha",
+    "Development Status :: 3 - Alpha",
     "Programming Language :: Python :: 3",
     "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
 ]
-
-[project.urls]
-"Homepage" = "https://github.com/jz10ujs/pygmssl"
-"Bug Tracker" = "https://github.com/jz10ujs/pygmssl/issues"
-
-[tool.setuptools]
-packages = ["pygmssl"]
-
-[tool.setuptools.dynamic]
-version = {attr = "pygmssl.VERSION"}
-
-[tool.autopep8]
-indent_size = 4
-max_line_length = 120
-ignore = ["E121", "W6"]
-aggressive = 3
-# in-place = true
-# recursive = true
-
-[tool.isort]
-max_line_length = 120
-
-[tool.poetry]
-name = "pygmssl"
-version = "0.1.0"
-description = "GmSSL in python ctypes"
-authors = ["Zhang Jie <zhangj_10ujs@foxmail.com>"]
-license = "GPLv3"
-readme = "README.md"
+packages = [
+    { include = "pygmssl", from = "src" },
+]
 
 [tool.poetry.dependencies]
 python = "^3.11"
@@ -57,3 +32,14 @@ pytest-cov = "^5.0.0"
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
+
+[tool.autopep8]
+indent_size = 4
+max_line_length = 120
+ignore = ["E121", "W6"]
+aggressive = 3
+# in-place = true
+# recursive = true
+
+[tool.isort]
+max_line_length = 120
\ No newline at end of file
diff --git a/src/pygmssl/py.typed b/src/pygmssl/py.typed
new file mode 100644
index 0000000..e69de29