diff --git a/.gitignore b/.gitignore
index d5ac7638..be4071bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,39 @@
 .aider*
 .env
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual Environment
+venv/
+env/
+ENV/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# Testing
+.coverage
+htmlcov/
+.pytest_cache/
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..e0f349df
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,22 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "reasoning_gym"
+version = "0.1.0"
+authors = [
+  { name="GPU Mode Community", email="info@gpumode.com" },
+]
+description = "A library of procedural dataset generators for training reasoning models"
+readme = "README.md"
+requires-python = ">=3.12"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+
+[project.urls]
+"Homepage" = "https://github.com/gpumode/reasoning_gym"
+"Bug Tracker" = "https://github.com/gpumode/reasoning_gym/issues"
diff --git a/reasoning_gym/__init__.py b/reasoning_gym/__init__.py
new file mode 100644
index 00000000..6061a9c8
--- /dev/null
+++ b/reasoning_gym/__init__.py
@@ -0,0 +1,5 @@
+"""
+Reasoning Gym - A library of procedural dataset generators for training reasoning models
+"""
+
+__version__ = "0.1.0"
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 00000000..f3a92e7f
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,5 @@
+pytest>=7.4.0
+black>=23.7.0
+isort>=5.12.0
+flake8>=6.1.0
+mypy>=1.5.1
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 00000000..73d90cd2
--- /dev/null
+++ b/tests/__init__.py
@@ -0,0 +1 @@
+# Test package initialization