diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index b5ceba4..73d04c0 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -23,4 +23,7 @@ formats:
 # Optionally declare the Python requirements required to build your docs
 python:
   install:
-  - requirements: requirements.txt
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs
diff --git a/README.rst b/README.rst
index be274d5..df70b5c 100644
--- a/README.rst
+++ b/README.rst
@@ -30,11 +30,9 @@ Download and installation
    .. code-block:: console
 
     $ cd python.berlin
-    $ python3 -m venv .
-    $ . bin/activate
-    $ python -m pip install --upgrade pip
-    $ python -m pip install -r requirements_dev.txt
-    $ pre-commit install
+    $ python3 -m venv .venv
+    $ . .venv/bin/activate
+    $ python -m pip install -e ".[dev]"
 
 #. Create HTML
 
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..f9a46eb
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,48 @@
+[project]
+name = "python.berlin"
+version = "24.1.0"
+authors = [
+  { name="Veit Schiele", email="veit@cusy.io" },
+]
+description = "Berlin Python User Groups"
+readme = "README.rst"
+requires-python = ">=3.9"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: BSD License",
+    "Operating System :: OS Independent",
+]
+dependencies = []
+
+[project.optional-dependencies]
+docs = [
+    "sphinx-design",
+    "furo",
+    "sphinxext-opengraph",
+    "sphinx-copybutton",
+]
+
+dev = [
+    "python.berlin[docs]",
+    "pre-commit",
+]
+
+[project.urls]
+"Homepage" = "https://github.com/python-berlin/python.berlin"
+"Bug Tracker" = "https://github.com/python-berlin/python.berlin/issues"
+
+[tool.setuptools]
+packages = []
+
+[tool.black]
+line-length = 79
+
+[tool.isort]
+atomic=true
+force_grid_wrap=0
+include_trailing_comma=true
+lines_after_imports=2
+lines_between_types=1
+multi_line_output=3
+not_skip="__init__.py"
+use_parentheses=true
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 2c8fec2..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-sphinx-design
-furo
-sphinxext-opengraph
-sphinx-copybutton
diff --git a/requirements_dev.txt b/requirements_dev.txt
deleted file mode 100644
index ef94fcd..0000000
--- a/requirements_dev.txt
+++ /dev/null
@@ -1,4 +0,0 @@
--r requirements.txt
-
-pre-commit
-sphinx-lint