diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..455808f
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.12.4
diff --git a/hello.py b/hello.py
new file mode 100644
index 0000000..f744293
--- /dev/null
+++ b/hello.py
@@ -0,0 +1,6 @@
+def main():
+    print("Hello from template-python-project!")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/pyproject.toml b/pyproject.toml
index 82d7140..717afdb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,9 +1,14 @@
 [project]
 name = "template-python-project"
 version = "0.1.0"
-description = "Add your description here"
+description = "Esse repositório foi criado com o propósito de servir como um template de um projeto Python."
 readme = "README.md"
 requires-python = ">=3.12"
 dependencies = [
     "ruff>=0.6.5",
 ]
+
+[tool.uv]
+dev-dependencies = [
+    "pytest>=8.3.3",
+]
diff --git a/test/test_main.py b/test/test_main.py
new file mode 100644
index 0000000..e6ef5c8
--- /dev/null
+++ b/test/test_main.py
@@ -0,0 +1,2 @@
+def test_main():
+    assert True
diff --git a/uv.lock b/uv.lock
index 3eeae21..331a0a3 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,6 +1,57 @@
 version = 1
 requires-python = ">=3.12"
 
+[[package]]
+name = "colorama"
+version = "0.4.6"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/d8/53/6f443c9a4a8358a93a6792e2acffb9d9d5cb0a5cfd8802644b7b1c9a02e4/colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44", size = 27697 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/d1/d6/3965ed04c63042e047cb6a3e6ed1a63a35087b6a609aa3a15ed8ac56c221/colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6", size = 25335 },
+]
+
+[[package]]
+name = "iniconfig"
+version = "2.0.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/d7/4b/cbd8e699e64a6f16ca3a8220661b5f83792b3017d0f79807cb8708d33913/iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3", size = 4646 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/ef/a6/62565a6e1cf69e10f5727360368e451d4b7f58beeac6173dc9db836a5b46/iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374", size = 5892 },
+]
+
+[[package]]
+name = "packaging"
+version = "24.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/51/65/50db4dda066951078f0a96cf12f4b9ada6e4b811516bf0262c0f4f7064d4/packaging-24.1.tar.gz", hash = "sha256:026ed72c8ed3fcce5bf8950572258698927fd1dbda10a5e981cdf0ac37f4f002", size = 148788 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/08/aa/cc0199a5f0ad350994d660967a8efb233fe0416e4639146c089643407ce6/packaging-24.1-py3-none-any.whl", hash = "sha256:5b8f2217dbdbd2f7f384c41c628544e6d52f2d0f53c6d0c3ea61aa5d1d7ff124", size = 53985 },
+]
+
+[[package]]
+name = "pluggy"
+version = "1.5.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/96/2d/02d4312c973c6050a18b314a5ad0b3210edb65a906f868e31c111dede4a6/pluggy-1.5.0.tar.gz", hash = "sha256:2cffa88e94fdc978c4c574f15f9e59b7f4201d439195c3715ca9e2486f1d0cf1", size = 67955 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/88/5f/e351af9a41f866ac3f1fac4ca0613908d9a41741cfcf2228f4ad853b697d/pluggy-1.5.0-py3-none-any.whl", hash = "sha256:44e1ad92c8ca002de6377e165f3e0f1be63266ab4d554740532335b9d75ea669", size = 20556 },
+]
+
+[[package]]
+name = "pytest"
+version = "8.3.3"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "colorama", marker = "sys_platform == 'win32'" },
+    { name = "iniconfig" },
+    { name = "packaging" },
+    { name = "pluggy" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/8b/6c/62bbd536103af674e227c41a8f3dcd022d591f6eed5facb5a0f31ee33bbc/pytest-8.3.3.tar.gz", hash = "sha256:70b98107bd648308a7952b06e6ca9a50bc660be218d53c257cc1fc94fda10181", size = 1442487 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/6b/77/7440a06a8ead44c7757a64362dd22df5760f9b12dc5f11b6188cd2fc27a0/pytest-8.3.3-py3-none-any.whl", hash = "sha256:a6853c7375b2663155079443d2e45de913a911a11d669df02a50814944db57b2", size = 342341 },
+]
+
 [[package]]
 name = "ruff"
 version = "0.6.5"
@@ -34,5 +85,13 @@ dependencies = [
     { name = "ruff" },
 ]
 
+[package.dev-dependencies]
+dev = [
+    { name = "pytest" },
+]
+
 [package.metadata]
 requires-dist = [{ name = "ruff", specifier = ">=0.6.5" }]
+
+[package.metadata.requires-dev]
+dev = [{ name = "pytest", specifier = ">=8.3.3" }]