diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..1109e3d
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,58 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "i18n-key-sync"
+version = "1.0.0"
+description = "A CLI tool that scans source code to extract, validate, and manage i18n translation keys"
+readme = "README.md"
+license = {text = "MIT"}
+requires-python = ">=3.9"
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Environment :: Console",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+]
+keywords = ["i18n", "internationalization", "translation", "cli", "localization"]
+authors = [
+    {name = "i18n-key-sync", email = "dev@example.com"}
+]
+dependencies = [
+    "click>=8.0",
+    "pyyaml>=6.0",
+    "rich>=12.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.0",
+    "pytest-cov>=4.0",
+    "ruff>=0.1.0",
+]
+
+[project.scripts]
+i18n-key-sync = "i18n_key_sync.cli:main"
+
+[tool.setuptools.packages.find]
+include = ["i18n_key_sync*"]
+
+[tool.ruff]
+line-length = 100
+target-version = "py39"
+
+[tool.ruff.lint]
+select = ["E", "F", "W", "I", "D", "UP", "B", "C90", "N", "YTT", "ASYNC", "PIE", "T20", "SIM", "ARG", "PTH", "PL", "TRY", "PERF", "FURB"]
+ignore = ["D100", "D101", "D102", "D103", "D104", "D105", "D106", "D107"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+python_functions = ["test_*"]
+addopts = "-v --tb=short"