diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 109d7b6..356551a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,14 +23,14 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.9", "3.13"]
+        python-version: ["3.10", "3.13"]
 
     steps:
     - name: Checking out the cookie cutter repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -58,9 +58,9 @@ jobs:
 
     steps:
     - name: Checking out the cookie cutter repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
-    - uses: actions/setup-python@v5
+    - uses: actions/setup-python@v6
       with:
         python-version: "3.13"
 
diff --git a/README.md b/README.md
index 84d7ce2..79c4d7d 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ If your Python package contains compiled C++ modules, you might want to check ou
 
 In order to use Python Package Cookiecutter you need the following software installed:
 
-* Python `>= 3.8`
+* Python `>= 3.10`
 * [Cookiecutter](https://github.com/cookiecutter/cookiecutter) e.g. by doing `pip install cookiecutter`.
 * Git `>= 1.8.2`
 
diff --git a/hooks/post_gen_project.py b/hooks/post_gen_project.py
index 7c51b6c..ebe91e2 100644
--- a/hooks/post_gen_project.py
+++ b/hooks/post_gen_project.py
@@ -60,7 +60,7 @@ def conditional_remove(condition, path):
 conditional_remove(not {{ have_precommit }}, ".pre-commit-config.yaml")
 conditional_remove("{{ cookiecutter.notebooks }}" == "No", "notebooks")
 conditional_remove("{{ cookiecutter.notebooks }}" == "No", "doc/demo.nblink")
-conditional_remove("{{ cookiecutter.commandlineinterface }}" == "No", "{{ cookiecutter|modname }}/__main__.py")
+conditional_remove("{{ cookiecutter.commandlineinterface }}" == "No", "src/{{ cookiecutter|modname }}/__main__.py")
 conditional_remove("{{ cookiecutter.commandlineinterface }}" == "No", "tests/test_cli.py")
 conditional_remove(os.stat("TODO.md").st_size == 0, "TODO.md")
 
diff --git a/{{cookiecutter.project_slug}}/.github/workflows/ci.yml b/{{cookiecutter.project_slug}}/.github/workflows/ci.yml
index 3133982..4cdee23 100644
--- a/{{cookiecutter.project_slug}}/.github/workflows/ci.yml
+++ b/{{cookiecutter.project_slug}}/.github/workflows/ci.yml
@@ -21,24 +21,24 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
         # Here, we are testing the oldest and the newest supported Python version.
         # If this is insufficient for your package, consider adding more versions.
-        python-version: ["3.8", "3.12"]
+        python-version: ["3.10", "3.13"]
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         # setuptools_scm requires a non-shallow clone of the repository
         fetch-depth: 0
 
     - name: Set up Python ${{ "{{ matrix.python-version }}" }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ "{{ matrix.python-version }}" }}
 
     - name: Install Python package
       run: |
         python -m pip install .[tests]
-    
+
     - name: Run Python tests
       run: |
         python -m pytest{% if cookiecutter.notebooks == "Yes" %} --nbval{% endif %}
@@ -49,9 +49,9 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
-    - uses: actions/setup-python@v5
+    - uses: actions/setup-python@v6
       with:
         python-version: "3.13"
 
diff --git a/{{cookiecutter.project_slug}}/.gitlab-ci.yml b/{{cookiecutter.project_slug}}/.gitlab-ci.yml
index f52e65d..f16d1eb 100644
--- a/{{cookiecutter.project_slug}}/.gitlab-ci.yml
+++ b/{{cookiecutter.project_slug}}/.gitlab-ci.yml
@@ -3,14 +3,11 @@
     - python -m pip install .[tests]
     - python -m pytest{% if cookiecutter.notebooks == "Yes" %} --nbval{% endif %}
 
-test-{{ cookiecutter|modname }}-python3.8:
-  image: python:3.8
+test-{{ cookiecutter|modname }}-python3.10:
+  image: python:3.10
   <<: *template
 
-test-{{ cookiecutter|modname }}-python3.9:
-  image: python:3.9
+test-{{ cookiecutter|modname }}-python3.13:
+  image: python:3.13
   <<: *template
 
-test-{{ cookiecutter|modname }}-python3.10:
-  image: python:3.10
-  <<: *template
diff --git a/{{cookiecutter.project_slug}}/.pre-commit-config.yaml b/{{cookiecutter.project_slug}}/.pre-commit-config.yaml
index 18cf54c..be18e46 100644
--- a/{{cookiecutter.project_slug}}/.pre-commit-config.yaml
+++ b/{{cookiecutter.project_slug}}/.pre-commit-config.yaml
@@ -1,13 +1,16 @@
 repos:
-  # Run Black - the uncompromising Python code formatter
-  - repo: https://github.com/psf/black
-    rev: 23.7.0
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.14.4
     hooks:
-      - id: black-jupyter
+      # Run the linter
+      - id: ruff-check
+        args: [ --fix, --show-fixes ]
+      # Run the formatter
+      - id: ruff-format
 
   # Add some general purpose useful hooks
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v6.0.0
     hooks:
       # Make sure that contained YAML files are well-formed
       - id: check-yaml
@@ -24,7 +27,7 @@ repos:
   # Make sure that Jupyter notebooks under version control
   # have their outputs stripped before committing
   - repo: https://github.com/kynan/nbstripout
-    rev: 0.6.1
+    rev: 0.8.1
     hooks:
       - id: nbstripout
         files: ".ipynb"
@@ -33,7 +36,7 @@ repos:
 
   # GitHub Actions Workflow linter
   - repo: https://github.com/rhysd/actionlint
-    rev: v1.6.25
+    rev: v1.7.8
     hooks:
       - id: actionlint
 {%- endif %}
diff --git a/{{cookiecutter.project_slug}}/.readthedocs.yml b/{{cookiecutter.project_slug}}/.readthedocs.yml
index 190aa1c..36ba997 100644
--- a/{{cookiecutter.project_slug}}/.readthedocs.yml
+++ b/{{cookiecutter.project_slug}}/.readthedocs.yml
@@ -1,9 +1,9 @@
 version: 2
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-24.04
   tools:
-    python: "3.9"
+    python: "3.13"
 
 sphinx:
   configuration: doc/conf.py
@@ -13,4 +13,6 @@ formats: all
 python:
   install:
     - method: pip
-      path: .[docs]
+      path: .
+      extra_requirements:
+        - docs
diff --git a/{{cookiecutter.project_slug}}/FILESTRUCTURE.md b/{{cookiecutter.project_slug}}/FILESTRUCTURE.md
index 2f90b74..ba6c050 100644
--- a/{{cookiecutter.project_slug}}/FILESTRUCTURE.md
+++ b/{{cookiecutter.project_slug}}/FILESTRUCTURE.md
@@ -1,9 +1,9 @@
 This is an explanation of the file structure that the cookiecutter generated for you:
 
 * Python source files:
-  * The Python package source files are located in the `{{ cookiecutter|modname }}` directory.
+  * The Python package source files are located in the `src/{{ cookiecutter|modname }}` directory.
 {%- if cookiecutter.commandlineinterface == "Yes" %}
-  * The file `{{ cookiecutter|modname }}.__main__.py` defines a command line interface that
+  * The file `src/{{ cookiecutter|modname }}.__main__.py` defines a command line interface that
     is accessible both as the command `{{ cookiecutter|modname }}` and via
     `python -m {{ cookiecutter|modname }}`.
   * `tests/test_cli.py` contains rudimentary testing of this CLI.
@@ -33,9 +33,6 @@ This is an explanation of the file structure that the cookiecutter generated for
   * `pyproject.toml` is the central place for configuration of your Python package.
     It contains the project metadata, setuptools-specific information and the configuration
     for your toolchain (like e.g. `pytest`).
-  * `setup.py` is still required for editable builds, but you should not need to change it.
-    In the future, `setuptools` will support editable builds purely from `pyproject.toml`
-    configuration.
 * Configuration for CI/Code Analysis and documentation services
 {%- if cookiecutter.github_actions_ci %}
   * `.github/workflows/ci.yml` describes the Github Workflow for Continuous
diff --git a/{{cookiecutter.project_slug}}/doc/Makefile b/{{cookiecutter.project_slug}}/doc/Makefile
index b507a95..ed88099 100644
--- a/{{cookiecutter.project_slug}}/doc/Makefile
+++ b/{{cookiecutter.project_slug}}/doc/Makefile
@@ -17,4 +17,4 @@ help:
 # Catch-all target: route all unknown targets to Sphinx using the new
 # "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
 %: Makefile
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
\ No newline at end of file
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/{{cookiecutter.project_slug}}/doc/demo.nblink b/{{cookiecutter.project_slug}}/doc/demo.nblink
index cf1ae47..e0294ef 100644
--- a/{{cookiecutter.project_slug}}/doc/demo.nblink
+++ b/{{cookiecutter.project_slug}}/doc/demo.nblink
@@ -1,3 +1,3 @@
 {
     "path": "../notebooks/demo.ipynb"
-}
\ No newline at end of file
+}
diff --git a/{{cookiecutter.project_slug}}/doc/index.rst b/{{cookiecutter.project_slug}}/doc/index.rst
index 79fa608..3054caa 100644
--- a/{{cookiecutter.project_slug}}/doc/index.rst
+++ b/{{cookiecutter.project_slug}}/doc/index.rst
@@ -16,4 +16,4 @@ Indices and tables
 
 * :ref:`genindex`
 * :ref:`modindex`
-* :ref:`search`
\ No newline at end of file
+* :ref:`search`
diff --git a/{{cookiecutter.project_slug}}/doc/intro.rst b/{{cookiecutter.project_slug}}/doc/intro.rst
index e2618b8..97d4958 100644
--- a/{{cookiecutter.project_slug}}/doc/intro.rst
+++ b/{{cookiecutter.project_slug}}/doc/intro.rst
@@ -1 +1 @@
-.. mdinclude:: ../README.md
\ No newline at end of file
+.. mdinclude:: ../README.md
diff --git a/{{cookiecutter.project_slug}}/notebooks/demo.ipynb b/{{cookiecutter.project_slug}}/notebooks/demo.ipynb
index 4539a92..190623b 100644
--- a/{{cookiecutter.project_slug}}/notebooks/demo.ipynb
+++ b/{{cookiecutter.project_slug}}/notebooks/demo.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "819be38a-921a-485a-8e1f-58daeadc14ac",
+   "id": "0",
    "metadata": {},
    "source": [
     "# Demo of the {{ cookiecutter|modname }} package"
@@ -10,7 +10,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "55984bca-1e25-45f9-8c31-ce080b2cdcfb",
+   "id": "1",
    "metadata": {},
    "source": [
     "In the following we will demonstrate the {{ cookiecutter|modname }} package. It is currently capable of doing impressive things:"
@@ -19,7 +19,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "89c489c7-9c94-43ee-9696-a4e56681fd8f",
+   "id": "2",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -29,7 +29,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "e2913ab6-3ae7-40ae-84ef-258bc757676c",
+   "id": "3",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -38,7 +38,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "eb8e87dc-5e78-4b1c-b880-a948658b13d9",
+   "id": "4",
    "metadata": {},
    "source": [
     "There you go: `1+1=2`!"
diff --git a/{{cookiecutter.project_slug}}/pyproject.toml b/{{cookiecutter.project_slug}}/pyproject.toml
index 026570e..4a1a6e4 100644
--- a/{{cookiecutter.project_slug}}/pyproject.toml
+++ b/{{cookiecutter.project_slug}}/pyproject.toml
@@ -25,22 +25,22 @@ dynamic = ["version"]
 {%- else %}
 version = "0.0.1"
 {%- endif %}
-requires-python = ">=3.8"
+requires-python = ">=3.10"
 {%- if cookiecutter.license != "None" %}
-license = { text = "{{ cookiecutter.license }}" }
-{%- endif %}
-classifiers = [
-    "Programming Language :: Python :: 3",
-    "Operating System :: OS Independent",
+license-files = ["LICEN[CS]E*"]
 {%- if cookiecutter.license == "MIT" %}
-    "License :: OSI Approved :: MIT License",
+license = "MIT"
 {%- elif cookiecutter.license == "BSD-2" %}
-    "License :: OSI Approved :: BSD License",
+license = "BSD-2-Clause"
 {%- elif cookiecutter.license == "GPL-3.0" %}
-    "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+license = "GPL-3.0-only"
 {%- elif cookiecutter.license == "LGPL-3.0" %}
-    "License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)",
+license = "LGPL-3.0-only"
+{%- endif %}
 {%- endif %}
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Operating System :: OS Independent",
 ]
 dependencies = [
 {%- if cookiecutter.commandlineinterface == "Yes" %}
@@ -59,8 +59,6 @@ tests = [
 docs = [
 {%- if cookiecutter.notebooks == "Yes" %}
     "ipykernel",
-{%- endif %}
-{%- if cookiecutter.notebooks == "Yes" %}
     "nbsphinx",
     "nbsphinx-link",
 {%- endif %}
@@ -77,10 +75,8 @@ docs = [
 # The following section contains setuptools-specific configuration
 # options. For a full reference of available options, check the overview
 # at https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html
-[tool.setuptools]
-packages = [
-    "{{ cookiecutter|modname }}",
-]
+[tool.setuptools.packages.find]
+where = ["src"]
 {%- if cookiecutter.version_management == "setuptools_scm" %}
 
 # Configure setuptools_scm, which extracts the version number from
@@ -89,7 +85,7 @@ packages = [
 [tool.setuptools_scm]
 version_scheme = "post-release"
 local_scheme = "node-and-date"
-write_to = "{{ cookiecutter|modname }}/_version.py"
+write_to = "src/{{ cookiecutter|modname }}/_version.py"
 {%- endif %}
 
 # The following is the configuration for the pytest test suite
diff --git a/{{cookiecutter.project_slug}}/setup.py b/{{cookiecutter.project_slug}}/setup.py
deleted file mode 100644
index b024da8..0000000
--- a/{{cookiecutter.project_slug}}/setup.py
+++ /dev/null
@@ -1,4 +0,0 @@
-from setuptools import setup
-
-
-setup()
diff --git a/{{cookiecutter.project_slug}}/{{cookiecutter.__modname}}/__init__.py b/{{cookiecutter.project_slug}}/src/{{cookiecutter.__modname}}/__init__.py
similarity index 95%
rename from {{cookiecutter.project_slug}}/{{cookiecutter.__modname}}/__init__.py
rename to {{cookiecutter.project_slug}}/src/{{cookiecutter.__modname}}/__init__.py
index 4330ee1..fc80110 100644
--- a/{{cookiecutter.project_slug}}/{{cookiecutter.__modname}}/__init__.py
+++ b/{{cookiecutter.project_slug}}/src/{{cookiecutter.__modname}}/__init__.py
@@ -1,6 +1,6 @@
 {%- if cookiecutter.version_management == "setuptools_scm" %}
 # The version file is generated automatically by setuptools_scm
-from {{ cookiecutter|modname }}._version import version as __version__
+from {{ cookiecutter|modname }}._version import version as __version__  # noqa: F401
 {%- else %}
 from importlib import metadata
 
diff --git a/{{cookiecutter.project_slug}}/{{cookiecutter.__modname}}/__main__.py b/{{cookiecutter.project_slug}}/src/{{cookiecutter.__modname}}/__main__.py
similarity index 100%
rename from {{cookiecutter.project_slug}}/{{cookiecutter.__modname}}/__main__.py
rename to {{cookiecutter.project_slug}}/src/{{cookiecutter.__modname}}/__main__.py