diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 399991af..fc167a48 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -27,7 +27,7 @@ repos:
   hooks:
   - id: isort
     name: Sort import statements
-    args: [--settings-path, pyproject.toml]
+    args: [--settings-path, develop.toml]
     stages: [pre-commit]
 
 # Add Black code formatters.
@@ -36,7 +36,7 @@ repos:
   hooks:
   - id: black
     name: Format code
-    args: [--config, pyproject.toml]
+    args: [--config, develop.toml]
 - repo: https://github.com/asottile/blacken-docs
   rev: 1.19.1
   hooks:
@@ -67,7 +67,7 @@ repos:
     args: [--config, .flake8]
 
 # Run Pylint from the local repo to make sure venv packages
-# specified in pyproject.toml are available.
+# specified in develop.toml are available.
 - repo: local
   hooks:
   - id: pylint
@@ -76,7 +76,7 @@ repos:
     language: python
     files: ^src/package/|^tests/
     types: [text, python]
-    args: [--rcfile, pyproject.toml]
+    args: [--rcfile, develop.toml]
 
 # Type-check all Python code.
 - repo: local
@@ -87,7 +87,7 @@ repos:
     language: python
     files: ^src/package/|^tests/
     types: [text, python]
-    args: [--config-file, pyproject.toml]
+    args: [--config-file, develop.toml]
 
 # Check for potential security issues.
 - repo: https://github.com/PyCQA/bandit
@@ -95,7 +95,7 @@ repos:
   hooks:
   - id: bandit
     name: Check for security issues
-    args: [--configfile, pyproject.toml]
+    args: [--configfile, develop.toml]
     files: ^src/package/|^tests/
     types: [text, python]
     additional_dependencies: ['bandit[toml]']
@@ -165,7 +165,7 @@ repos:
   hooks:
   - id: pytest
     name: Run unit tests
-    entry: pytest -c pyproject.toml --cov-config pyproject.toml src/package/ tests/ docs/
+    entry: pytest -c develop.toml --cov-config develop.toml src/package/ tests/ docs/
     language: python
     verbose: true
     always_run: true
diff --git a/Makefile b/Makefile
index 061534ff..cdddd51a 100644
--- a/Makefile
+++ b/Makefile
@@ -96,7 +96,7 @@ upgrade: .venv/upgraded-on
 .venv/upgraded-on: pyproject.toml
 	python -m pip install --upgrade pip setuptools
 	python -m pip install --upgrade wheel
-	python -m pip install --upgrade --upgrade-strategy eager --editable .[actions,dev,docs,hooks,test]
+	python -m pip install --upgrade --upgrade-strategy eager --editable . --requirement develop-requirements.txt
 	$(MAKE) upgrade-quiet
 force-upgrade:
 	rm -f .venv/upgraded-on
diff --git a/develop-requirements.txt b/develop-requirements.txt
new file mode 100644
index 00000000..cfac6b19
--- /dev/null
+++ b/develop-requirements.txt
@@ -0,0 +1,34 @@
+
+# Manage git hooks.
+pre-commit >=4.0.0,<4.3.0
+
+# Manage conventional commits.
+commitizen ==4.5.0
+
+# Packaging and distribution.
+flit >=3.2.0,<4.0.0
+twine >=6.0.0,<6.1.0
+
+# Tools for development and to check Python code.
+mypy >=1.0.0,<1.15
+pylint >=3.0.0,<3.4.0
+perflint >=0.8.0,<1.0.0
+
+# Support for CI and package integrity.
+cyclonedx-bom >=4.0.0,<5.0.0
+pip-audit >=2.4.4,<3.0.0
+
+# Documentation.
+sphinx >=5.1.1,<9.0.0
+sphinx-markdown-builder >=0.6.4,<1.0.0
+
+# All things testing.
+# Note that the `custom_exit_code` and `env` plugins may currently be unmaintained.
+faker ==37.1.0
+hypothesis >=6.21.0,<6.130.9
+pytest >=7.2.0,<9.0.0
+pytest-cases ==3.8.6
+pytest-cov ==6.1.0
+pytest-custom_exit_code ==0.3.0
+pytest-doctestplus ==1.3.0
+pytest-env ==1.1.5
diff --git a/develop.toml b/develop.toml
new file mode 100644
index 00000000..fd47fe7f
--- /dev/null
+++ b/develop.toml
@@ -0,0 +1,177 @@
+
+# https://bandit.readthedocs.io/en/latest/config.html
+# Skip test B101 because of issue https://github.com/PyCQA/bandit/issues/457
+[tool.bandit]
+tests = []
+skips = ["B101"]
+
+
+# https://github.com/psf/black#configuration
+[tool.black]
+line-length = 120
+
+
+# https://github.com/commitizen-tools/commitizen
+# https://commitizen-tools.github.io/commitizen/bump/
+[tool.commitizen]
+bump_message = """bump: release $current_version → $new_version
+
+Automatically generated by Commitizen.
+"""
+tag_format = "v$major.$minor.$patch$prerelease"
+update_changelog_on_bump = true
+version_files = [
+    "src/package/__init__.py:__version__",
+]
+major_version_zero = false
+version = "2.16.0"
+
+
+# https://github.com/pytest-dev/pytest-cov
+# https://github.com/nedbat/coveragepy
+[tool.coverage.report]
+fail_under = 100
+show_missing = true
+
+[tool.coverage.run]
+branch = true
+omit = [
+    "src/package/__main__.py",
+]
+
+
+# https://pycqa.github.io/isort/
+[tool.isort]
+profile = "black"
+multi_line_output = 3
+line_length = 120
+skip_gitignore = true
+
+
+# https://mypy.readthedocs.io/en/stable/config_file.html#using-a-pyproject-toml
+[tool.mypy]
+# mypy_path =
+# exclude =
+show_error_codes = true
+show_column_numbers = true
+pretty = true
+show_traceback = true
+check_untyped_defs = true
+incremental = false
+strict = true
+warn_return_any = true
+warn_redundant_casts = true
+warn_unreachable = true
+warn_unused_configs = true
+warn_unused_ignores = true
+disallow_any_explicit = true
+disallow_untyped_calls = true
+disallow_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_untyped_decorators = true
+# disable_error_code =
+# allow_redefinition =
+
+[[tool.mypy.overrides]]
+module = [
+    "pytest.*",
+]
+ignore_missing_imports = true
+
+
+# https://pylint.pycqa.org/en/latest/user_guide/configuration/index.html
+[tool.pylint.main]
+fail-under = 10.0
+suggestion-mode = true
+load-plugins = [
+    "perflint",  # A Linter for performance anti-patterns.
+    "pylint.extensions.bad_builtin",
+    "pylint.extensions.broad_try_clause",
+    "pylint.extensions.check_elif",
+    "pylint.extensions.code_style",
+    "pylint.extensions.comparison_placement",
+    "pylint.extensions.confusing_elif",
+    "pylint.extensions.consider_refactoring_into_while_condition",
+    "pylint.extensions.consider_ternary_expression",
+    "pylint.extensions.dict_init_mutate",
+    # "pylint.extensions.docparams",
+    # "pylint.extensions.docstyle",
+    "pylint.extensions.dunder",
+    "pylint.extensions.empty_comment",
+    "pylint.extensions.for_any_all",
+    "pylint.extensions.magic_value",
+    # "pylint.extensions.mccabe",
+    "pylint.extensions.no_self_use",
+    "pylint.extensions.overlapping_exceptions",
+    "pylint.extensions.private_import",
+    "pylint.extensions.redefined_loop_name",
+    "pylint.extensions.redefined_variable_type",
+    "pylint.extensions.set_membership",
+    "pylint.extensions.typing",
+    "pylint.extensions.while_used",
+]
+disable = [
+    "fixme",
+    "line-too-long",  # Replaced by Flake8 Bugbear B950 check.
+    "too-few-public-methods",
+    "too-many-ancestors",
+    "too-many-arguments",
+    "too-many-boolean-expressions",
+    "too-many-branches",
+    "too-many-instance-attributes",
+    "too-many-lines",
+    "too-many-locals",
+    "too-many-nested-blocks",
+    "too-many-positional-arguments",
+    "too-many-public-methods",
+    "too-many-return-statements",
+    "too-many-statements",
+    "too-many-try-statements",
+]
+
+[tool.pylint.MISCELLANEOUS]
+notes = [
+    "FIXME",
+    "TODO",
+    "BUGBUG",
+]
+
+[tool.pylint.FORMAT]
+max-line-length = 120
+
+
+# https://docs.pytest.org/en/latest/reference/customize.html#configuration-file-formats
+# https://docs.pytest.org/en/latest/reference/reference.html#configuration-options
+# https://docs.pytest.org/en/latest/reference/reference.html#command-line-flags
+#
+# To integrate Hypothesis into pytest and coverage, we use its native plugin:
+# https://hypothesis.readthedocs.io/en/latest/details.html#the-hypothesis-pytest-plugin
+#
+# To discover tests in documentation, we use doctest and the doctest-plus plugin which
+# adds multiple useful options to control tests in documentation. More details at:
+# https://docs.python.org/3/library/doctest.html
+# https://github.com/scientific-python/pytest-doctestplus
+#
+# To avoid failing pytest when no tests were dicovered, we need an extra plugin:
+# https://docs.pytest.org/en/latest/reference/exit-codes.html
+# https://github.com/yashtodi94/pytest-custom_exit_code
+[tool.pytest.ini_options]
+minversion = "7.0"
+addopts = """-vv -ra --tb native --durations 0 \
+    --hypothesis-show-statistics --hypothesis-explain --hypothesis-verbosity verbose \
+    --doctest-modules --doctest-continue-on-failure --doctest-glob '*.rst' --doctest-plus \
+    --suppress-no-test-exit-code \
+    --cov package \
+"""  # Consider adding --pdb
+# https://docs.python.org/3/library/doctest.html#option-flags
+doctest_optionflags = "IGNORE_EXCEPTION_DETAIL"
+env = [
+    "PYTHONDEVMODE=1",  # https://docs.python.org/3/library/devmode.html
+]
+filterwarnings = [
+    "error",
+    "always::DeprecationWarning",
+    # https://docs.pytest.org/en/latest/how-to/failures.html#warning-about-unraisable-exceptions-and-unhandled-thread-exceptions
+    "error::pytest.PytestUnraisableExceptionWarning",
+    "error::pytest.PytestUnhandledThreadExceptionWarning",
+]
diff --git a/pyproject.toml b/pyproject.toml
index e88532f9..d44e4a07 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,4 @@
+
 # https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html
 # https://flit.pypa.io/en/latest/pyproject_toml.html
 [build-system]
@@ -37,39 +38,6 @@ something = "package.__main__:main"
 [project.entry-points]
 
 [project.optional-dependencies]
-# The 'actions' requirements match exactly the packages installed by the workflows.
-# We keep them listed here to ensure the infrastructure BOM is consistent with what's
-# installed. Make sure to keep the requirements in sync with the workflows!
-actions = [
-    "commitizen ==4.5.0",
-    "twine ==6.1.0",
-]
-dev = [
-    "flit >=3.2.0,<4.0.0",
-    "mypy >=1.0.0,<1.15",
-    "pip-audit >=2.4.4,<3.0.0",
-    "pylint >=3.0.0,<3.4.0",
-    "perflint >=0.8.0,<1.0.0",
-    "cyclonedx-bom >=4.0.0,<5.0.0",
-]
-docs = [
-    "sphinx >=5.1.1,<9.0.0",
-    "sphinx-markdown-builder >=0.6.4,<1.0.0",
-]
-hooks = [
-    "pre-commit >=3.0.0,<4.1.0",
-]
-# Note that the `custom_exit_code` and `env` plugins may currently be unmaintained.
-test = [
-    "faker ==37.1.0",
-    "hypothesis >=6.21.0,<6.130.9",
-    "pytest >=7.2.0,<9.0.0",
-    "pytest-cases ==3.8.6",
-    "pytest-custom_exit_code ==0.3.0",
-    "pytest-cov ==6.1.0",
-    "pytest-doctestplus ==1.3.0",
-    "pytest-env ==1.1.5",
-]
 
 [project.urls]
 Homepage = "https://github.com/jenstroeger/python-package-template"
@@ -78,47 +46,6 @@ Documentation = "https://github.com/jenstroeger/python-package-template/wiki"
 Issues = "https://github.com/jenstroeger/python-package-template/issues"
 
 
-# https://bandit.readthedocs.io/en/latest/config.html
-# Skip test B101 because of issue https://github.com/PyCQA/bandit/issues/457
-[tool.bandit]
-tests = []
-skips = ["B101"]
-
-
-# https://github.com/psf/black#configuration
-[tool.black]
-line-length = 120
-
-
-# https://github.com/commitizen-tools/commitizen
-# https://commitizen-tools.github.io/commitizen/bump/
-[tool.commitizen]
-bump_message = """bump: release $current_version → $new_version
-
-Automatically generated by Commitizen.
-"""
-tag_format = "v$major.$minor.$patch$prerelease"
-update_changelog_on_bump = true
-version_files = [
-    "src/package/__init__.py:__version__",
-]
-major_version_zero = false
-version = "2.16.0"
-
-
-# https://github.com/pytest-dev/pytest-cov
-# https://github.com/nedbat/coveragepy
-[tool.coverage.report]
-fail_under = 100
-show_missing = true
-
-[tool.coverage.run]
-branch = true
-omit = [
-    "src/package/__main__.py",
-]
-
-
 # https://flit.pypa.io/en/latest/pyproject_toml.html#sdist-section
 # See also: https://github.com/pypa/flit/issues/565
 [tool.flit.sdist]
@@ -131,143 +58,8 @@ exclude = [
     ".gitignore",
     ".pre-commit-config.yaml",
     "CHANGELOG.md",
+    "develop-requirements.txt",
+    "develop.toml",
     "Makefile",
     "SECURITY.md",
 ]
-
-
-# https://pycqa.github.io/isort/
-[tool.isort]
-profile = "black"
-multi_line_output = 3
-line_length = 120
-skip_gitignore = true
-
-
-# https://mypy.readthedocs.io/en/stable/config_file.html#using-a-pyproject-toml
-[tool.mypy]
-# mypy_path =
-# exclude =
-show_error_codes = true
-show_column_numbers = true
-pretty = true
-show_traceback = true
-check_untyped_defs = true
-incremental = false
-strict = true
-warn_return_any = true
-warn_redundant_casts = true
-warn_unreachable = true
-warn_unused_configs = true
-warn_unused_ignores = true
-disallow_any_explicit = true
-disallow_untyped_calls = true
-disallow_untyped_defs = true
-disallow_incomplete_defs = true
-disallow_untyped_decorators = true
-# disable_error_code =
-# allow_redefinition =
-
-[[tool.mypy.overrides]]
-module = [
-    "pytest.*",
-]
-ignore_missing_imports = true
-
-
-# https://pylint.pycqa.org/en/latest/user_guide/configuration/index.html
-[tool.pylint.main]
-fail-under = 10.0
-suggestion-mode = true
-load-plugins = [
-    "perflint",  # A Linter for performance anti-patterns.
-    "pylint.extensions.bad_builtin",
-    "pylint.extensions.broad_try_clause",
-    "pylint.extensions.check_elif",
-    "pylint.extensions.code_style",
-    "pylint.extensions.comparison_placement",
-    "pylint.extensions.confusing_elif",
-    "pylint.extensions.consider_refactoring_into_while_condition",
-    "pylint.extensions.consider_ternary_expression",
-    "pylint.extensions.dict_init_mutate",
-    # "pylint.extensions.docparams",
-    # "pylint.extensions.docstyle",
-    "pylint.extensions.dunder",
-    "pylint.extensions.empty_comment",
-    "pylint.extensions.for_any_all",
-    "pylint.extensions.magic_value",
-    # "pylint.extensions.mccabe",
-    "pylint.extensions.no_self_use",
-    "pylint.extensions.overlapping_exceptions",
-    "pylint.extensions.private_import",
-    "pylint.extensions.redefined_loop_name",
-    "pylint.extensions.redefined_variable_type",
-    "pylint.extensions.set_membership",
-    "pylint.extensions.typing",
-    "pylint.extensions.while_used",
-]
-disable = [
-    "fixme",
-    "line-too-long",  # Replaced by Flake8 Bugbear B950 check.
-    "too-few-public-methods",
-    "too-many-ancestors",
-    "too-many-arguments",
-    "too-many-boolean-expressions",
-    "too-many-branches",
-    "too-many-instance-attributes",
-    "too-many-lines",
-    "too-many-locals",
-    "too-many-nested-blocks",
-    "too-many-positional-arguments",
-    "too-many-public-methods",
-    "too-many-return-statements",
-    "too-many-statements",
-    "too-many-try-statements",
-]
-
-[tool.pylint.MISCELLANEOUS]
-notes = [
-    "FIXME",
-    "TODO",
-    "BUGBUG",
-]
-
-[tool.pylint.FORMAT]
-max-line-length = 120
-
-
-# https://docs.pytest.org/en/latest/reference/customize.html#configuration-file-formats
-# https://docs.pytest.org/en/latest/reference/reference.html#configuration-options
-# https://docs.pytest.org/en/latest/reference/reference.html#command-line-flags
-#
-# To integrate Hypothesis into pytest and coverage, we use its native plugin:
-# https://hypothesis.readthedocs.io/en/latest/details.html#the-hypothesis-pytest-plugin
-#
-# To discover tests in documentation, we use doctest and the doctest-plus plugin which
-# adds multiple useful options to control tests in documentation. More details at:
-# https://docs.python.org/3/library/doctest.html
-# https://github.com/scientific-python/pytest-doctestplus
-#
-# To avoid failing pytest when no tests were dicovered, we need an extra plugin:
-# https://docs.pytest.org/en/latest/reference/exit-codes.html
-# https://github.com/yashtodi94/pytest-custom_exit_code
-[tool.pytest.ini_options]
-minversion = "7.0"
-addopts = """-vv -ra --tb native --durations 0 \
-    --hypothesis-show-statistics --hypothesis-explain --hypothesis-verbosity verbose \
-    --doctest-modules --doctest-continue-on-failure --doctest-glob '*.rst' --doctest-plus \
-    --suppress-no-test-exit-code \
-    --cov package \
-"""  # Consider adding --pdb
-# https://docs.python.org/3/library/doctest.html#option-flags
-doctest_optionflags = "IGNORE_EXCEPTION_DETAIL"
-env = [
-    "PYTHONDEVMODE=1",  # https://docs.python.org/3/library/devmode.html
-]
-filterwarnings = [
-    "error",
-    "always::DeprecationWarning",
-    # https://docs.pytest.org/en/latest/how-to/failures.html#warning-about-unraisable-exceptions-and-unhandled-thread-exceptions
-    "error::pytest.PytestUnraisableExceptionWarning",
-    "error::pytest.PytestUnhandledThreadExceptionWarning",
-]