diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4eaae9f..1bdda00 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -33,7 +33,12 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: pip
           allow-prereleases: true
-      - run: pip install tox
+      - uses: prefix-dev/setup-pixi@v0.6.0
+        with:
+          pixi-version: v0.20.1
+          run-install: false
+
+      - run: pip install tox-uv
 
       - name: Run tests.
         shell: bash -l {0}
diff --git a/.gitignore b/.gitignore
index 8e3b795..04dcee8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -144,9 +144,10 @@ _generated
 *.egg-info
 .eggs
 
-.pytask.sqlite3
+.pytask
 
 build
 dist
 
-version.py
+.ruff_cache
+.mypy_cache
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..8531a3b
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.12.2
diff --git a/README.md b/README.md
index 2143705..7d1619e 100644
--- a/README.md
+++ b/README.md
@@ -5,79 +5,17 @@
 [![image](https://img.shields.io/github/actions/workflow/status/pytask-dev/cookiecutter-pytask-project/main.yml?branch=main)](https://github.com/pytask-dev/cookiecutter-pytask-project/actions?query=branch%3Amain)
 [![image](https://codecov.io/gh/pytask-dev/cookiecutter-pytask-project/branch/main/graph/badge.svg)](https://codecov.io/gh/pytask-dev/cookiecutter-pytask-project)
 [![pre-commit.ci status](https://results.pre-commit.ci/badge/github/pytask-dev/cookiecutter-pytask-project/main.svg)](https://results.pre-commit.ci/latest/github/pytask-dev/cookiecutter-pytask-project/main)
-[![image](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
+[![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 
 This repository contains a minimal cookiecutter template for a project with
 [pytask](https://github.com/pytask-dev/pytask).
 
-## Usage
-
-First, install cookiecutter.
-
-```console
-$ pip install cookiecutter
-
-$ conda install -c conda-forge cookiecutter
-```
-
-Then, set up the template with
-
-```console
-$ cookiecutter https://github.com/pytask-dev/cookiecutter-pytask-project
-```
-
 ## Documentation
 
-If you are new to pytask, just follow the
-[tutorials](https://pytask-dev.readthedocs.io/en/stable/tutorials/index.html) which will
-help you with your first steps like how to write the first task.
-
-If you are already familiar with pytask, the
-[how-to guides](https://pytask-dev.readthedocs.io/en/stable/how_to_guides/index.html)
-offer more in-depth guidance on complex projects.
-
-In general, you will find most guidance in the
-[documentation](https://pytask-dev.readthedocs.io/en/stable/index.html) and some advice
-in the FAQ below.
-
-## FAQ
-
-Q: Why are the source files nested in `src/<project_slug>`?
-
-A: This is called the src layout and the advantages are discussed in this
-[article by Hynek Schlawack](https://hynek.me/articles/testing-packaging/).
-
-Although the article discusses the src layout in terms of Python packages, it is also
-beneficial to structure a project the same way. Next to the reasons discussed there, it
-is possible to use a single Python environment for multiple projects without messing
-with your PYTHONPATH (via `pip install -e .` or `conda develop .`) each time and still
-import modules.
-
-Q: My project is a Python package, but it does not seem to have a version. Where is it?
-
-A: The cookiecutter uses [setuptools_scm](https://github.com/pypa/setuptools_scm/) to
-manage the version number. When you install your created project as a Python package
-with `pip install -e .`, setuptools_scm tries to infer the version number from the tags
-created on the repo.
-
-For example, if you have switched to a commit associated with the tag `v0.2.0`,
-setuptools_scm will create a `src/<package_slug>/_version.py` with a variable containing
-`version = '0.2.0'` which you can use in your `src/<package_slug>/__init__.py`. If you
-are one commit ahead of the tag, you version will be something like `0.2.0.dev1+...`
-indicating you are one commit ahead of the tag `v0.2.0`.
-
-If you want to switch to the tradition setup, replace the following code in your
-`pyproject.toml`
-
-```toml
-[build-system]
-requires = ["setuptools>=45", "wheel", "setuptools_scm[toml]>=6.0"]
-```
+You find the documentation at <https://cookiecutter-pytask-project.readthedocs.io>.
 
-with
+## Changes
 
-```toml
-[build-system]
-requires = ["setuptools"]
-build-backend = "setuptools.build_meta"
-```
+Consult the
+[release notes](https://cookiecutter-pytask-project.readthedocs.io/en/latest/changes.html)
+to find out about what is new.
diff --git a/cookiecutter.json b/cookiecutter.json
index 761bb8e..364b088 100644
--- a/cookiecutter.json
+++ b/cookiecutter.json
@@ -20,7 +20,5 @@
     "Not open source"
   ],
   "make_initial_commit": ["no", "yes"],
-  "conda_environment_name": "{{ cookiecutter.project_slug }}",
-  "create_conda_environment_at_finish": ["no", "yes"],
   "_copy_without_render": [".github/workflows/main.yml"]
 }
diff --git a/docs/source/faq.md b/docs/source/faq.md
deleted file mode 100644
index 58d8eb2..0000000
--- a/docs/source/faq.md
+++ /dev/null
@@ -1,41 +0,0 @@
-# FAQ
-
-Q: Why are the source files nested in `src/<project_slug>`?
-
-A: This is called the src layout and the advantages are discussed in this
-[article by Hynek Schlawack](https://hynek.me/articles/testing-packaging/).
-
-Although the article discusses the src layout in terms of Python packages, it is also
-beneficial to structure a project the same way. Next to the reasons discussed there, it
-is possible to use a single Python environment for multiple projects without messing
-with your PYTHONPATH (via `pip install -e .` or `conda develop .`) each time and still
-import modules.
-
-Q: My project is a Python package, but it does not seem to have a version. Where is it?
-
-A: The cookiecutter uses [setuptools_scm](https://github.com/pypa/setuptools_scm/) to
-manage the version number. When you install your created project as a Python package
-with `pip install -e .`, setuptools_scm tries to infer the version number from the tags
-created on the repo.
-
-For example, if you have switched to a commit associated with the tag `v0.2.0`,
-setuptools_scm will create a `src/<package_slug>/_version.py` with a variable containing
-`version = '0.2.0'` which you can use in your `src/<package_slug>/__init__.py`. If you
-are one commit ahead of the tag, you version will be something like `0.2.0.dev1+...`
-indicating you are one commit ahead of the tag `v0.2.0`.
-
-If you want to switch to the tradition setup, replace the following code in your
-`pyproject.toml`
-
-```toml
-[build-system]
-requires = ["setuptools>=45", "wheel", "setuptools_scm[toml]>=6.0"]
-```
-
-with
-
-```toml
-[build-system]
-requires = ["setuptools"]
-build-backend = "setuptools.build_meta"
-```
diff --git a/docs/source/index.md b/docs/source/index.md
index 0093590..2dfa30e 100644
--- a/docs/source/index.md
+++ b/docs/source/index.md
@@ -10,41 +10,94 @@
 This repository contains a minimal cookiecutter template for a project with
 [pytask](https://github.com/pytask-dev/pytask).
 
-## Usage
+## Installation
 
-First, install cookiecutter.
+The template uses [pixi](https://pixi.sh/) as the package and environment manager which
+is the successor of conda/mamba/micromamba. Please, install it.
+
+```{note}
+Of course, the template can be used with any other package manager. But, we recommend
+pixi which can install packages from conda, PyPI, etc.. or [rye](https://rye-up.com/)
+for PyPI-only projects.
+```
+
+Then, install cookiecutter.
 
 ```console
-$ pip install cookiecutter
+pixi global install cookiecutter
+```
+
+Now, set up the template with
 
-$ conda install -c conda-forge cookiecutter
+```console
+pixi run cookiecutter https://github.com/pytask-dev/cookiecutter-pytask-project
 ```
 
-Then, set up the template with
+Many formatting issues exist after the project is created. Run pre-commit to polish the
+template.
 
 ```console
-$ cookiecutter https://github.com/pytask-dev/cookiecutter-pytask-project
+pixi global install pre-commit
+pixi run pre-commit run -a
 ```
 
-## Documentation
+## Features
+
+Here is a feature list of the template.
+
+- [pixi](https://pixi.sh/latest/) as the environment and package manager.
+- Supports pre-commit and some popular hooks like ruff and refurb.
+- Initialized documentation in `docs`.
+- Preconfigured GitHub actions and dependabot.
+- Preconfigured readthedocs.
+- Preconfigured CodeCov.
+
+## FAQ
 
-If you are new to pytask, just follow the
-[tutorials](https://pytask-dev.readthedocs.io/en/stable/tutorials/index.html) which will
-help you with your first steps like how to write the first task.
+Q: Why are the source files nested in `src/<project_slug>`?
 
-If you are already familiar with pytask, the
-[how-to guides](https://pytask-dev.readthedocs.io/en/stable/how_to_guides/index.html)
-offer more in-depth guidance on complex projects.
+A: This is called the src layout and the advantages are discussed in this
+[article by Hynek Schlawack](https://hynek.me/articles/testing-packaging/).
 
-In general, you will find most guidance in the
-[documentation](https://pytask-dev.readthedocs.io/en/stable/index.html) and some advice
-in the FAQ below.
+Although the article discusses the src layout in terms of Python packages, it is also
+beneficial to structure a project the same way. Next to the reasons discussed there, it
+is possible to use a single Python environment for multiple projects without messing
+with your PYTHONPATH (via `pip install -e .` or `conda develop .`) each time and still
+import modules.
+
+Q: My project is a Python package, but it does not seem to have a version. Where is it?
+
+A: The cookiecutter uses [setuptools_scm](https://github.com/pypa/setuptools_scm/) to
+manage the version number. When you install your created project as a Python package
+with `pip install -e .`, setuptools_scm tries to infer the version number from the tags
+created on the repo.
+
+For example, if you have switched to a commit associated with the tag `v0.2.0`,
+setuptools_scm will create a `src/<package_slug>/_version.py` with a variable containing
+`version = '0.2.0'` which you can use in your `src/<package_slug>/__init__.py`. If you
+are one commit ahead of the tag, you version will be something like `0.2.0.dev1+...`
+indicating you are one commit ahead of the tag `v0.2.0`.
+
+If you want to switch to the tradition setup, replace the following code in your
+`pyproject.toml`
+
+```toml
+[build-system]
+requires = ["setuptools>=45", "wheel", "setuptools_scm[toml]>=6.0"]
+```
+
+with
+
+```toml
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+```
 
 ```{toctree}
 ---
 caption: 'Contents:'
 maxdepth: 1
 ---
-faq
 changes
 ```
diff --git a/environment.yml b/environment.yml
deleted file mode 100644
index 6090cbf..0000000
--- a/environment.yml
+++ /dev/null
@@ -1,38 +0,0 @@
-name: cp
-
-channels:
-  - conda-forge
-  - nodefaults
-
-dependencies:
-  - python >=3.8
-  - pip >=21.1
-  - setuptools_scm
-  - toml
-
-  # Package dependencies
-  - cookiecutter >=2.1.0
-  - pytask >=0.2
-
-  # Misc
-  - black
-  - ipython
-  - mypy
-  - pre-commit
-  - pytest
-  # - pytest-cookies>=0.6.2
-  - pytest-cov
-  - pytest-xdist
-  - tox-conda
-
-  # Documentation
-  - furo
-  - myst-parser
-  - nbsphinx
-  - sphinx
-  - sphinx-copybutton
-  - sphinx-panels
-
-  - pip:
-    - sphinxext-opengraph
-    - git+https://github.com/andriihomiak/pytest-cookies.git@fix/quotes_in_user_config
diff --git a/hooks/post_gen_project.py b/hooks/post_gen_project.py
index d45c3c6..002affb 100644
--- a/hooks/post_gen_project.py
+++ b/hooks/post_gen_project.py
@@ -4,7 +4,6 @@
 
 import shutil
 import subprocess
-import warnings
 from contextlib import suppress
 from pathlib import Path
 
@@ -62,56 +61,6 @@ def main() -> None:
             capture_output=True,
         )
 
-    if "{{ cookiecutter.create_conda_environment_at_finish }}" == "yes":
-        if shutil.which("mamba") is not None:
-            conda_exe = shutil.which("mamba")
-        else:
-            conda_exe = shutil.which("conda")
-
-        if conda_exe:
-            subprocess.run(
-                (
-                    conda_exe,
-                    "env",
-                    "create",
-                    "-f",
-                    (project_path / "environment.yml").absolute().as_posix(),
-                    "--force",
-                ),
-                check=True,
-                capture_output=True,
-            )
-            # Install pre-commit hooks and run them.
-            subprocess.run(  # noqa: PLW1510
-                (
-                    conda_exe,
-                    "run",
-                    "-n",
-                    "{{ cookiecutter.conda_environment_name }}",
-                    "pre-commit",
-                    "install",
-                ),
-                capture_output=True,
-            )
-            subprocess.run(  # noqa: PLW1510
-                (
-                    conda_exe,
-                    "run",
-                    "-n",
-                    "{{ cookiecutter.conda_environment_name }}",
-                    "pre-commit",
-                    "run",
-                    "--all-files",
-                ),
-                capture_output=True,
-            )
-        else:
-            warnings.warn(
-                "conda environment could not be created since no conda or mamba "
-                "executable was found.",
-                stacklevel=1,
-            )
-
 
 if __name__ == "__main__":
     main()
diff --git a/hooks/pre_gen_project.py b/hooks/pre_gen_project.py
index 139ff03..e3db32d 100644
--- a/hooks/pre_gen_project.py
+++ b/hooks/pre_gen_project.py
@@ -4,7 +4,7 @@
 
 MODULE_REGEX = r"^[_a-zA-Z][_a-zA-Z0-9]*$"
 ENVIRON_REGEX = r"^[-_a-zA-Z0-9]*$"
-PYTHONVERSION_REGEX = r"^(3\.(1[0-9]|[7-9])(\.[0-9]{1,2})?)$"
+PYTHONVERSION_REGEX = r"^(3\.(1[0-9]|[8-9])(\.[0-9]{1,2})?)$"
 PYTHONVERSION_MIN = "3.8"
 
 EXCEPTION_MSG_MODULE_NAME = """
@@ -33,13 +33,6 @@ def main() -> None:
     if not re.match(MODULE_REGEX, module_name):
         raise ValueError(EXCEPTION_MSG_MODULE_NAME.format(module_name=module_name))
 
-    environment_name = "{{ cookiecutter.conda_environment_name }}"
-
-    if not re.match(ENVIRON_REGEX, environment_name):
-        raise ValueError(
-            EXCEPTION_MSG_ENVIRON_NAME.format(environment_name=environment_name),
-        )
-
     python_version = "{{ cookiecutter.python_version }}"
 
     if not re.match(PYTHONVERSION_REGEX, python_version):
diff --git a/pyproject.toml b/pyproject.toml
index a450727..94ed373 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,16 +1,21 @@
-[build-system]
-requires = ["setuptools", "wheel", "setuptools_scm[toml]"]
-build-backend = "setuptools.build_meta"
-
-[tool.setuptools_scm]
-write_to = "version.py"
-
 [project]
 name = "cookiecutter_pytask_project"
+version = "1.7.0"
 description = "A minimal cookiecutter template for a project with pytask."
-classifiers = [ "Development Status :: 3 - Alpha", "Environment :: Console", "Intended Audience :: Science/Research", "License :: OSI Approved :: MIT License", "Operating System :: MacOS :: MacOS X", "Operating System :: Microsoft :: Windows", "Operating System :: POSIX", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3 :: Only", "Topic :: Scientific/Engineering", "Topic :: Software Development :: Build Tools",]
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Environment :: Console",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: MacOS :: MacOS X",
+    "Operating System :: Microsoft :: Windows",
+    "Operating System :: POSIX",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3 :: Only",
+    "Topic :: Scientific/Engineering",
+    "Topic :: Software Development :: Build Tools",
+]
 requires-python = ">=3.8"
-dynamic = ["version"]
 dependencies = ["cookiecutter"]
 
 [[project.authors]]
@@ -19,16 +24,16 @@ email = "raabe@posteo.de"
 
 [project.optional-dependencies]
 docs = [
-  "furo",
-  "ipython",
-  "myst-parser",
-  "nbsphinx",
-  "sphinx",
-  "sphinx-click",
-  "sphinx-copybutton",
-  "sphinx-design>=0.3",
-  "sphinx-toolbox",
-  "sphinxext-opengraph",
+    "furo",
+    "ipython",
+    "myst-parser",
+    "nbsphinx",
+    "sphinx",
+    "sphinx-click",
+    "sphinx-copybutton",
+    "sphinx-design>=0.3",
+    "sphinx-toolbox",
+    "sphinxext-opengraph",
 ]
 test = ["pytest", "pytest-cookies", "pytest-cov"]
 
@@ -46,10 +51,12 @@ Documentation = "https://cookiecutter-pytask-project.readthedocs.io/en/latest"
 Github = "https://github.com/pytask-dev/cookiecutter-pytask-project"
 Tracker = "https://github.com/pytask-dev/cookiecutter-pytask-project/issues"
 
-[tool.setuptools]
-platforms = [ "unix", "linux", "osx", "cygwin", "win32",]
-license-files = [ "LICENSE"]
-include-package-data = false
+[tool.rye]
+managed = true
+virtual = true
+dev-dependencies = [
+    "tox-uv>=1.8.2",
+]
 
 [tool.mypy]
 files = ["hooks", "tests"]
@@ -74,9 +81,8 @@ unsafe-fixes = true
 
 [tool.ruff.lint]
 extend-ignore = [
-    # Others.
-    "COM812",  # Comply with ruff-format.
-    "ISC001",  # Comply with ruff-format.
+    "COM812", # Comply with ruff-format.
+    "ISC001", # Comply with ruff-format.
 ]
 select = ["ALL"]
 
diff --git a/requirements-dev.lock b/requirements-dev.lock
new file mode 100644
index 0000000..e848340
--- /dev/null
+++ b/requirements-dev.lock
@@ -0,0 +1,80 @@
+# generated by rye
+# use `rye lock` or `rye sync` to update this lockfile
+#
+# last locked with the following flags:
+#   pre: false
+#   features: []
+#   all-features: true
+#   with-sources: false
+
+arrow==1.3.0
+    # via cookiecutter
+binaryornot==0.4.4
+    # via cookiecutter
+cachetools==5.3.3
+    # via tox
+certifi==2024.2.2
+    # via requests
+chardet==5.2.0
+    # via binaryornot
+    # via tox
+charset-normalizer==3.3.2
+    # via requests
+click==8.1.7
+    # via cookiecutter
+colorama==0.4.6
+    # via tox
+cookiecutter==2.6.0
+distlib==0.3.8
+    # via virtualenv
+filelock==3.14.0
+    # via tox
+    # via virtualenv
+idna==3.7
+    # via requests
+jinja2==3.1.3
+    # via cookiecutter
+markdown-it-py==3.0.0
+    # via rich
+markupsafe==2.1.5
+    # via jinja2
+mdurl==0.1.2
+    # via markdown-it-py
+packaging==24.0
+    # via pyproject-api
+    # via tox
+    # via tox-uv
+platformdirs==4.2.1
+    # via tox
+    # via virtualenv
+pluggy==1.5.0
+    # via tox
+pygments==2.17.2
+    # via rich
+pyproject-api==1.6.1
+    # via tox
+python-dateutil==2.9.0.post0
+    # via arrow
+python-slugify==8.0.4
+    # via cookiecutter
+pyyaml==6.0.1
+    # via cookiecutter
+requests==2.31.0
+    # via cookiecutter
+rich==13.7.1
+    # via cookiecutter
+six==1.16.0
+    # via python-dateutil
+text-unidecode==1.3
+    # via python-slugify
+tox==4.15.0
+    # via tox-uv
+tox-uv==1.8.2
+types-python-dateutil==2.9.0.20240316
+    # via arrow
+urllib3==2.2.1
+    # via requests
+uv==0.1.39
+    # via tox-uv
+virtualenv==20.26.1
+    # via tox
diff --git a/requirements.lock b/requirements.lock
new file mode 100644
index 0000000..c7f16f0
--- /dev/null
+++ b/requirements.lock
@@ -0,0 +1,52 @@
+# generated by rye
+# use `rye lock` or `rye sync` to update this lockfile
+#
+# last locked with the following flags:
+#   pre: false
+#   features: []
+#   all-features: true
+#   with-sources: false
+
+arrow==1.3.0
+    # via cookiecutter
+binaryornot==0.4.4
+    # via cookiecutter
+certifi==2024.2.2
+    # via requests
+chardet==5.2.0
+    # via binaryornot
+charset-normalizer==3.3.2
+    # via requests
+click==8.1.7
+    # via cookiecutter
+cookiecutter==2.6.0
+idna==3.7
+    # via requests
+jinja2==3.1.3
+    # via cookiecutter
+markdown-it-py==3.0.0
+    # via rich
+markupsafe==2.1.5
+    # via jinja2
+mdurl==0.1.2
+    # via markdown-it-py
+pygments==2.17.2
+    # via rich
+python-dateutil==2.9.0.post0
+    # via arrow
+python-slugify==8.0.4
+    # via cookiecutter
+pyyaml==6.0.1
+    # via cookiecutter
+requests==2.31.0
+    # via cookiecutter
+rich==13.7.1
+    # via cookiecutter
+six==1.16.0
+    # via python-dateutil
+text-unidecode==1.3
+    # via python-slugify
+types-python-dateutil==2.9.0.20240316
+    # via arrow
+urllib3==2.2.1
+    # via requests
diff --git a/tests/test_cookie.py b/tests/test_cookie.py
index 79aa5ce..6f3d27f 100644
--- a/tests/test_cookie.py
+++ b/tests/test_cookie.py
@@ -89,58 +89,43 @@ def test_remove_license(cookies):
 
 @pytest.mark.end_to_end()
 @pytest.mark.skipif(os.environ.get("CI") is None, reason="Run only in CI.")
-def test_check_conda_environment_creation_and_run_all_checks(cookies):
-    """Test that the conda environment is created and pre-commit passes."""
+def test_check_pixi_and_run_all_checks(cookies):
+    """Test pixi and pre-commit passes."""
     result = cookies.bake(
-        extra_context={
-            "conda_environment_name": "__test__",
-            "make_initial_commit": "yes",
-            "create_conda_environment_at_finish": "yes",
-            "python_version": _PYTHON_VERSION,
-        },
+        extra_context={"make_initial_commit": "yes", "python_version": _PYTHON_VERSION},
     )
 
     assert result.exit_code == 0
     assert result.exception is None
 
-    if sys.platform != "win32":
-        # Switch branch before pre-commit because otherwise failure because on main
-        # branch.
-        subprocess.run(
-            ("git", "checkout", "-b", "test"),
-            cwd=result.project_path,
-            check=True,
-        )
-
-        # Check linting, but not on the first try since formatters fix stuff.
-        subprocess.run(
-            ("conda", "run", "-n", "__test__", "pre-commit", "run", "--all-files"),
-            cwd=result.project_path,
-            check=False,
-        )
-        subprocess.run(
-            ("conda", "run", "-n", "__test__", "pre-commit", "run", "--all-files"),
-            cwd=result.project_path,
-            check=True,
-        )
-
-        # Install package.
-        subprocess.run(
-            ("conda", "run", "-n", "__test__", "pip", "install", "-e", "."),
-            cwd=result.project_path,
-            check=True,
-        )
-
-        # Run tests.
-        subprocess.run(
-            ("conda", "run", "-n", "__test__", "pytest"),
-            cwd=result.project_path,
-            check=True,
-        )
-
-        # Test building documentation
-        subprocess.run(
-            ("conda", "run", "-n", "__test__", "make", "html"),
-            cwd=result.project_path / "docs",
-            check=True,
-        )
+    # Switch branch before pre-commit because otherwise failure because on main
+    # branch.
+    subprocess.run(
+        ("git", "checkout", "-b", "test"),
+        cwd=result.project_path,
+        check=True,
+    )
+
+    # Install pre-commit.
+    subprocess.run(
+        ("pixi", "global", "install", "pre-commit"),
+        cwd=result.project_path,
+        check=True,
+    )
+    # Check linting, but not on the first try since formatters fix stuff.
+    subprocess.run(
+        ("pixi", "run", "pre-commit", "run", "--all-files"),
+        cwd=result.project_path,
+        check=False,
+    )
+    subprocess.run(
+        ("pixi", "run", "pre-commit", "run", "--all-files"),
+        cwd=result.project_path,
+        check=True,
+    )
+
+    # Run tests.
+    subprocess.run(("pixi", "run", "test"), cwd=result.project_path, check=True)
+
+    # Test building documentation
+    subprocess.run(("pixi", "run", "docs"), cwd=result.project_path, check=True)
diff --git a/tox.ini b/tox.ini
index dd200b0..49f3e59 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,20 +1,21 @@
 [tox]
-envlist = test, docs
+requires = tox>=4
+envlist = docs, test
 
 [testenv]
-usedevelop = true
 passenv = CI
-
-[testenv:test]
-allowlist_externals = pytest
-extras = test
-
-commands =
-    pytest {posargs}
+package = editable
 
 [testenv:docs]
-extras = docs
-changedir = docs/source
+extras = docs, test
 commands =
-    sphinx-build -T -b html -d {envtmpdir}/doctrees . {envtmpdir}/html
-    - sphinx-build -T -b linkcheck -d {envtmpdir}/doctrees . {envtmpdir}/linkcheck
+    sphinx-build -n -T -b html -d {envtmpdir}/doctrees docs/source docs/build/html
+    - sphinx-build -n -T -b doctest -d {envtmpdir}/doctrees docs/source docs/build/html
+
+[testenv:typing]
+extras = typing
+commands = mypy
+
+[testenv:test]
+extras = test
+commands = pytest {posargs}
diff --git a/{{cookiecutter.project_slug}}/.github/workflows/main.yml b/{{cookiecutter.project_slug}}/.github/workflows/main.yml
index f61c9b2..381a926 100644
--- a/{{cookiecutter.project_slug}}/.github/workflows/main.yml
+++ b/{{cookiecutter.project_slug}}/.github/workflows/main.yml
@@ -5,9 +5,6 @@ concurrency:
   group: ${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
 
-env:
-  CONDA_EXE: mamba
-
 on:
   push:
     branches:
@@ -31,20 +28,14 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: mamba-org/provision-with-micromamba@main
+      - uses: prefix-dev/setup-pixi@v0.6.0
         with:
-          environment-file: false
-          environment-name: gha-testing
-          channels: conda-forge,nodefaults
-          extra-specs: |
-            python=${{ matrix.python-version }}
-            mamba
-            tox-conda
-          cache-downloads: true
+          pixi-version: v0.20.1
+          cache: true
 
       - name: Run tests and doctests.
         shell: bash -l {0}
-        run: tox -e pytest
+        run: pixi run test
 
       - name: Upload coverage report
         uses: codecov/codecov-action@v4
diff --git a/{{cookiecutter.project_slug}}/MANIFEST.in b/{{cookiecutter.project_slug}}/MANIFEST.in
deleted file mode 100644
index 95e45be..0000000
--- a/{{cookiecutter.project_slug}}/MANIFEST.in
+++ /dev/null
@@ -1,9 +0,0 @@
-include CITATION
-{% if cookiecutter.open_source_license != 'Not open source' %}include LICENSE
-{% endif %}
-exclude *.yaml
-exclude *.yml
-exclude tox.ini
-
-prune docs
-prune tests
diff --git a/{{cookiecutter.project_slug}}/README.md b/{{cookiecutter.project_slug}}/README.md
index bf38756..5e0e5a1 100644
--- a/{{cookiecutter.project_slug}}/README.md
+++ b/{{cookiecutter.project_slug}}/README.md
@@ -17,18 +17,16 @@ cookiecutter.github_username }}/{{ cookiecutter.project_slug
 cookiecutter.github_username }}/{{ cookiecutter.project_slug }}/main)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 
-## Usage
+## Installation
 
-To get started, create the environment with
+To work with the project, you should have [pixi](https://pixi.sh/latest/) installed.
 
-```console
-$ mamba env create
-```
+## Usage
 
 To build the project, type
 
 ```console
-$ pytask
+pixi run pytask
 ```
 
 ## Credits
diff --git a/{{cookiecutter.project_slug}}/dependabot.yml b/{{cookiecutter.project_slug}}/dependabot.yml
deleted file mode 100644
index fbb58d4..0000000
--- a/{{cookiecutter.project_slug}}/dependabot.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-version: 2
-
-updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-
-    groups:
-      github-actions:
-        patterns:
-          - "*"
diff --git a/{{cookiecutter.project_slug}}/docs/source/conf.py b/{{cookiecutter.project_slug}}/docs/source/conf.py
index d9c3d2c..0afcfcc 100644
--- a/{{cookiecutter.project_slug}}/docs/source/conf.py
+++ b/{{cookiecutter.project_slug}}/docs/source/conf.py
@@ -37,8 +37,8 @@
     "sphinxext.opengraph",
     "sphinx.ext.viewcode",
     "sphinx_copybutton",
-    "sphinx_panels",
     "myst_parser",
+    "sphinx_design",
 ]
 
 # Add any paths that contain templates here, relative to this directory.
diff --git a/{{cookiecutter.project_slug}}/environment.yml b/{{cookiecutter.project_slug}}/environment.yml
deleted file mode 100644
index e135210..0000000
--- a/{{cookiecutter.project_slug}}/environment.yml
+++ /dev/null
@@ -1,38 +0,0 @@
-name: {{ cookiecutter.conda_environment_name }}
-
-channels:
-  - conda-forge
-  - nodefaults
-
-dependencies:
-  - python =={{ cookiecutter.python_version }}
-  - pip >=21.1
-  - setuptools_scm
-  - toml
-
-  # Reproducibility
-  - conda-lock
-
-  # Package dependencies
-  - pytask >=0.4
-
-  # Misc
-  - black
-  - ipython
-  - pre-commit
-  - pytest
-  - pytest-cov
-  - pytest-xdist
-  - tox-conda
-
-  # Documentation
-  - furo
-  - myst-parser
-  - nbsphinx
-  - sphinx
-  - sphinx-copybutton
-  - sphinx-panels
-
-  - pip:
-    - sphinxext-opengraph
-    - -e .
diff --git a/{{cookiecutter.project_slug}}/pyproject.toml b/{{cookiecutter.project_slug}}/pyproject.toml
index f06690c..e41393b 100644
--- a/{{cookiecutter.project_slug}}/pyproject.toml
+++ b/{{cookiecutter.project_slug}}/pyproject.toml
@@ -1,23 +1,21 @@
 [build-system]
-requires = ["setuptools>=45", "wheel", "setuptools_scm[toml]>=6.0"]
-
-[tool.setuptools_scm]
-write_to = "src/{{ cookiecutter.project_slug }}/_version.py"
+requires = ["hatchling"]
+build-backend = "hatchling.build"
 
 [project]
 name = "{{ cookiecutter.project_slug }}"
+version = "0.1.0"
 description = "{{ cookiecutter.project_description }}"
 requires-python = ">=3.8"
 classifiers = [
-    "Intended Audience :: Science/Research",
-    "License :: OSI Approved :: {{ cookiecutter.open_source_license }} License",
-    "Operating System :: MacOS :: MacOS X",
-    "Operating System :: Microsoft :: Windows",
-    "Operating System :: POSIX",
-    "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3 :: Only",
+  "Intended Audience :: Science/Research",
+  "License :: OSI Approved :: {{ cookiecutter.open_source_license }} License",
+  "Operating System :: MacOS :: MacOS X",
+  "Operating System :: Microsoft :: Windows",
+  "Operating System :: POSIX",
+  "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3 :: Only",
 ]
-dynamic = ["version"]
 dependencies = ["pytask"]
 
 [project.readme]
@@ -43,7 +41,7 @@ docs = [
   "sphinx-toolbox",
   "sphinxext-opengraph",
 ]
-test = []
+test = ["pytest", "pytest-cov", "pytest-xdist"]
 
 [project.urls]
 Changelog = "https://github.com/{{ cookiecutter.github_username }}/{{ cookiecutter.project_slug }}"
@@ -51,19 +49,6 @@ Documentation = "https://github.com/{{ cookiecutter.github_username }}/{{ cookie
 Github = "https://github.com/{{ cookiecutter.github_username }}/{{ cookiecutter.project_slug }}"
 Tracker = "https://github.com/{{ cookiecutter.github_username }}/{{ cookiecutter.project_slug }}/issues"
 
-[tool.setuptools]
-include-package-data = true
-zip-safe = false
-platforms = ["unix", "linux", "osx", "win32"]
-license-files = ["LICENSE"]
-
-[tool.setuptools.package-dir]
-"" = "src"
-
-[tool.setuptools.packages.find]
-where = ["src"]
-namespaces = false
-
 {% if cookiecutter.add_mypy == "yes" %}[tool.mypy]
 files = ["src", "tests"]
 check_untyped_defs = true
@@ -75,10 +60,10 @@ warn_redundant_casts = true
 warn_unused_ignores = true
 
 [[tool.mypy.overrides]]
+ignore_errors = true
 module = "tests.*"
 disallow_untyped_defs = false
-ignore_errors = true{% endif %}
-
+{% endif %}
 [tool.pytask.ini_options]
 paths = ["src/{{ cookiecutter.project_slug }}"]
 
@@ -89,8 +74,8 @@ unsafe-fixes = true
 
 [tool.ruff.lint]
 extend-ignore = [
-    "COM812",  # Comply with ruff-format.
-    "ISC001",  # Comply with ruff-format.
+  "COM812", # Comply with ruff-format.
+  "ISC001", # Comply with ruff-format.
 ]
 select = ["ALL"]
 
@@ -108,3 +93,26 @@ convention = "numpy"
 addopts = ["--doctest-modules"]
 testpaths = ["src", "tests"]
 norecursedirs = [".idea", ".tox"]
+
+[tool.pixi.project]
+channels = ["conda-forge"]
+platforms = ["win-64", "linux-64", "osx-64", "osx-arm64"]
+
+[tool.pixi.dependencies]
+pytask = ">=0.4.7,<0.5"
+
+[tool.pixi.pypi-dependencies]
+{{ cookiecutter.project_slug }} = { path = ".", editable = true }
+
+[tool.pixi.environments]
+default = { solve-group = "default" }
+docs = { features = ["docs"], solve-group = "default" }
+test = { features = ["test"], solve-group = "default" }
+
+[tool.pixi.tasks]
+
+[tool.pixi.feature.test.tasks]
+test = "pytest --cov src --cov tests"
+
+[tool.pixi.feature.docs.tasks]
+docs = "sphinx-build -b html docs/source docs/build"
diff --git a/{{cookiecutter.project_slug}}/tox.ini b/{{cookiecutter.project_slug}}/tox.ini
deleted file mode 100644
index 76e568a..0000000
--- a/{{cookiecutter.project_slug}}/tox.ini
+++ /dev/null
@@ -1,25 +0,0 @@
-[tox]
-requires = tox>=4
-envlist = docs, test
-
-[testenv]
-package = editable
-
-[testenv:test]
-conda_channels =
-    conda-forge
-    nodefaults
-conda_deps =
-    # pytest
-    pytest
-    pytest-cov
-    pytest-xdist
-
-commands =
-    pytest {posargs}
-
-[testenv:docs]
-extras = docs, test
-commands =
-    - sphinx-build -n -T -b html -d {envtmpdir}/doctrees docs/source docs/build/html
-    - sphinx-build -n -T -b doctest -d {envtmpdir}/doctrees docs/source docs/build/html