diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 0000000..7699178
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,31 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Python Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
new file mode 100644
index 0000000..bbcbbe7
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..b48a61c
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,38 @@
+name: Pre-commit
+
+on:
+  pull_request:
+    branches: [main]
+
+concurrency:
+  group: "lint" # Concurrency group named "lint"
+  cancel-in-progress: false
+
+jobs:
+  pre-commit:
+    name: Pre-Commit
+    runs-on: ubuntu-latest # Run the job on the latest version of Ubuntu
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4 # Checkout the repository code
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11" # Set up Python version 3.11 for the job
+
+      # Install Portaudio on Ubuntu
+      - name: Installing Portaudio in Ubuntu
+        run: sudo apt-get install portaudio19-dev python-all-dev
+
+      - name: Install Poetry Package
+        working-directory: 01OS # Set the working directory to "01OS"
+        run: |
+          pip install --upgrade pip
+          pip install poetry==1.3.2
+          poetry config virtualenvs.create false
+          poetry install --no-interaction --with dev
+
+      - name: Run Pre-commit
+        run: pre-commit run --all-files
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..2d6b051
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,61 @@
+name: Run Test
+
+on:
+  pull_request:
+    branches: [main]
+  # push: # Trigger the workflow on push events
+
+concurrency:
+  group: "test"
+  cancel-in-progress: false
+
+jobs:
+  pytest:
+    name: Run Test
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ["3.11"]
+
+    defaults:
+      run:
+        working-directory: 01OS
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install poetry
+        run: pipx install poetry
+
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: "poetry"
+
+      # Install Portaudio on Ubuntu
+      - name: Installing Portaudio in Ubuntu
+        if: matrix.os == 'ubuntu-latest'
+        run: sudo apt-get install portaudio19-dev python-all-dev
+
+      # Install Portaudio on macOS using Homebrew
+      - name: Installing Portaudio in Mac
+        if: matrix.os == 'macos-latest'
+        run: brew install portaudio
+
+      # Install Poetry and project dependencies
+      - name: Install Poetry Package
+        run: |
+          pip install --upgrade pip
+          pip install poetry==1.3.2
+          poetry config virtualenvs.create false
+          poetry install --no-interaction --with dev
+
+      # Run pytest
+      - name: Run Pytest
+        run: poetry run pytest tests
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..6d514b2
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,26 @@
+repos:
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  rev: "v0.2.2"
+  hooks:
+    - id: ruff
+      args: ["--fix"]
+    - id: ruff-format
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.5.0
+  hooks:
+    - id: trailing-whitespace
+    - id: end-of-file-fixer
+    - id: fix-encoding-pragma
+      args: [--remove]
+    - id: check-yaml
+    - id: debug-statements
+      language_version: python3
+- repo: local
+  hooks:
+    - id: pytest
+      name: pytest
+      entry: pytest 01OS/tests
+      language: system
+      types: [python]
+      pass_filenames: false
+      always_run: true
diff --git a/01OS/poetry.lock b/01OS/poetry.lock
index e29c468..748742c 100644
--- a/01OS/poetry.lock
+++ b/01OS/poetry.lock
@@ -1667,6 +1667,17 @@ zipp = {version = ">=3.1.0", markers = "python_version < \"3.10\""}
 docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (<7.2.5)", "sphinx (>=3.5)", "sphinx-lint"]
 testing = ["jaraco.collections", "pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy", "pytest-ruff (>=0.2.1)", "zipp (>=3.17)"]
 
+[[package]]
+name = "iniconfig"
+version = "2.0.0"
+description = "brain-dead simple config-ini parsing"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
+    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
+]
+
 [[package]]
 name = "inquirer"
 version = "3.2.4"
@@ -3291,6 +3302,21 @@ files = [
 docs = ["furo (>=2023.9.10)", "proselint (>=0.13)", "sphinx (>=7.2.6)", "sphinx-autodoc-typehints (>=1.25.2)"]
 test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.4.3)", "pytest-cov (>=4.1)", "pytest-mock (>=3.12)"]
 
+[[package]]
+name = "pluggy"
+version = "1.4.0"
+description = "plugin and hook calling mechanisms for python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pluggy-1.4.0-py3-none-any.whl", hash = "sha256:7db9f7b503d67d1c5b95f59773ebb58a8c1c288129a88665838012cfb07b8981"},
+    {file = "pluggy-1.4.0.tar.gz", hash = "sha256:8c85c2876142a764e5b7548e7d9a0e0ddb46f5185161049a79b7e974454223be"},
+]
+
+[package.extras]
+dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
+
 [[package]]
 name = "plyer"
 version = "2.1.0"
@@ -6617,6 +6643,28 @@ files = [
 packaging = ">=21.3"
 Pillow = ">=8.0.0"
 
+[[package]]
+name = "pytest"
+version = "8.1.1"
+description = "pytest: simple powerful testing with Python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pytest-8.1.1-py3-none-any.whl", hash = "sha256:2a8386cfc11fa9d2c50ee7b2a57e7d898ef90470a7a34c4b949ff59662bb78b7"},
+    {file = "pytest-8.1.1.tar.gz", hash = "sha256:ac978141a75948948817d360297b7aae0fcb9d6ff6bc9ec6d514b85d5a65c044"},
+]
+
+[package.dependencies]
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
+iniconfig = "*"
+packaging = "*"
+pluggy = ">=1.4,<2.0"
+tomli = {version = ">=1", markers = "python_version < \"3.11\""}
+
+[package.extras]
+testing = ["argcomplete", "attrs (>=19.2)", "hypothesis (>=3.56)", "mock", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
+
 [[package]]
 name = "python-dateutil"
 version = "2.9.0.post0"
@@ -8417,4 +8465,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.9,<3.12"
-content-hash = "6aa948d6a556517941cd0f399e509be40e273665886b5e2cd6479884a91076ad"
+content-hash = "8be29df37abd9cbe801a8ef165d05db22311f58a6119d5676d8d6a706e155a1a"
diff --git a/01OS/pyproject.toml b/01OS/pyproject.toml
index 593f1b9..2ba825b 100644
--- a/01OS/pyproject.toml
+++ b/01OS/pyproject.toml
@@ -41,6 +41,7 @@ build-backend = "poetry.core.masonry.api"
 black = "^23.10.1"
 isort = "^5.12.0"
 pre-commit = "^3.6.2"
+pytest = "^8.1.1"
 
 [tool.black]
 target-version = ['py311']
diff --git a/01OS/tests/__init__.py b/01OS/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/01OS/tests/sample_test.py b/01OS/tests/sample_test.py
new file mode 100644
index 0000000..0cd45d5
--- /dev/null
+++ b/01OS/tests/sample_test.py
@@ -0,0 +1,7 @@
+def hello_world():
+    return "Hello, World!"
+
+
+# A test function to assert that hello_world() returns the expected string
+def test_hello_world():
+    assert hello_world() == "Hello, World!"