diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 80f5d56..75631d8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -52,7 +52,7 @@ jobs:
       with:
         python-version: ${{ matrix.python }}
     - name: Install
-      run: pip install -U -r requirements-dev.txt
+      run: pip install -U -e .[dev]
     - run: pytest
     - uses: codecov/codecov-action@v3
   deploy:
@@ -70,7 +70,6 @@ jobs:
     - id: dist
       uses: casperdcl/deploy-pypi@v2
       with:
-        requirements: twine setuptools wheel setuptools_scm[toml]
         build: true
         password: ${{ secrets.PYPI_TOKEN }}
         upload: ${{ github.event_name == 'push' && startsWith(github.ref, 'refs/tags') }}
diff --git a/.gitignore b/.gitignore
index 5930e35..adc0314 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,8 +2,9 @@
 __pycache__/
 
 # Packages
-/shtab/_dist_ver.py
+/MANIFEST.in
 /*.egg*/
+/shtab/_dist_ver.py
 /build/
 /dist/
 /docs/build/
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index be1fbe4..f57e8e5 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -36,14 +36,15 @@ repos:
     - flake8-comprehensions
     - flake8-debugger
     - flake8-isort
+    - flake8-pyproject
     - flake8-string-format
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v1.1.1
+  rev: v1.3.0
   hooks:
   - id: mypy
     additional_dependencies: [types-setuptools]
 - repo: https://github.com/google/yapf
-  rev: v0.32.0
+  rev: v0.33.0
   hooks:
   - id: yapf
     args: [-i]
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3e53784..9b22bd3 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -6,7 +6,7 @@ When contributing pull requests, it's a good idea to run basic checks locally:
 
 ```bash
 # install development dependencies
-shtab (main)$ pip install pre-commit -r requirements-dev.txt
+shtab (main)$ pip install pre-commit -e .[dev]
 shtab (main)$ pre-commit install  # install pre-commit checks
 shtab (main)$ pytest              # run all tests
 ```
diff --git a/docs/requirements.txt b/docs/requirements.txt
index ef22cfa..0569ebc 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,6 +1,6 @@
 mkdocs-material
 git+https://github.com/tqdm/jsmin@python3-only#egg=jsmin
 mkdocs-minify-plugin
-pydoc-markdown>=4
+pydoc-markdown>=4,!=4.8.0
 pygments
 pymdown-extensions>=9
diff --git a/pyproject.toml b/pyproject.toml
index f343697..df14506 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,3 +4,115 @@ requires = ["setuptools>=42", "wheel", "setuptools_scm[toml]>=3.4"]
 [tool.setuptools_scm]
 write_to = "shtab/_dist_ver.py"
 write_to_template = "__version__ = '{version}'\n"
+
+[tool.setuptools.packages.find]
+exclude = ["docs", "tests", "examples"]
+
+[tool.setuptools.exclude-package-data]
+"*" = ["logo.png"]
+
+[project.urls]
+documentation = "https://docs.iterative.ai/shtab"
+repository = "https://github.com/iterative/shtab"
+changelog = "https://github.com/iterative/shtab/releases"
+
+[project]
+name = "shtab"
+dynamic = ["version"]
+authors = [{name = "Casper da Costa-Luis", email = "casper.dcl@physics.org"}]
+maintainers = [{name = "Iterative", email = "support@iterative.ai"}]
+description = "Automagic shell tab completion for Python CLI applications"
+readme = "README.rst"
+requires-python = ">=3.7"
+keywords = ["tab", "complete", "completion", "shell", "bash", "zsh", "argparse"]
+license = {text = "Apache-2.0"}
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Environment :: Console",
+    "Environment :: MacOS X",
+    "Environment :: Other Environment",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Education",
+    "Intended Audience :: End Users/Desktop",
+    "Intended Audience :: Other Audience",
+    "Intended Audience :: System Administrators",
+    "License :: OSI Approved :: Apache Software License",
+    "Operating System :: MacOS",
+    "Operating System :: MacOS :: MacOS X",
+    "Operating System :: POSIX",
+    "Operating System :: POSIX :: BSD",
+    "Operating System :: POSIX :: BSD :: FreeBSD",
+    "Operating System :: POSIX :: Linux",
+    "Operating System :: POSIX :: SunOS/Solaris",
+    "Operating System :: Unix",
+    "Programming Language :: Other Scripting Engines",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: Implementation",
+    "Programming Language :: Python :: Implementation :: IronPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
+    "Programming Language :: Unix Shell",
+    "Topic :: Desktop Environment",
+    "Topic :: Education :: Computer Aided Instruction (CAI)",
+    "Topic :: Education :: Testing",
+    "Topic :: Office/Business",
+    "Topic :: Other/Nonlisted Topic",
+    "Topic :: Software Development",
+    "Topic :: Software Development :: Build Tools",
+    "Topic :: Software Development :: Libraries",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Topic :: Software Development :: Pre-processors",
+    "Topic :: Software Development :: User Interfaces",
+    "Topic :: System",
+    "Topic :: System :: Installation/Setup",
+    "Topic :: System :: Shells",
+    "Topic :: System :: System Shells",
+    "Topic :: Terminals",
+    "Topic :: Utilities"]
+
+[project.optional-dependencies]
+dev = ["pytest>=6", "pytest-cov", "pytest-timeout"]
+
+[project.scripts]
+shtab = "shtab.main:main"
+
+[tool.flake8]
+max_line_length = 99
+extend_ignore = ["E261", "P101"]
+exclude = [".git", "__pycache__", "build", "dist", ".eggs"]
+
+[tool.yapf]
+spaces_before_comment = [15, 20]
+arithmetic_precedence_indication = true
+allow_split_before_dict_value = false
+coalesce_brackets = true
+column_limit = 99
+each_dict_entry_on_separate_line = false
+space_between_ending_comma_and_closing_bracket = false
+split_before_named_assigns = false
+split_before_closing_bracket = false
+blank_line_before_nested_class_or_def = false
+
+[tool.isort]
+profile = "black"
+line_length = 99
+known_first_party = ["shtab", "tests"]
+
+[tool.mypy]
+warn_unused_configs = true
+warn_unused_ignores = true
+show_error_codes = true
+
+[tool.pytest.ini_options]
+minversion = "6.0"
+timeout = 5
+log_level = "DEBUG"
+python_files = ["test_*.py"]
+testpaths = ["tests"]
+addopts = "-v --tb=short -rxs -W=error --durations=0 --cov=shtab --cov-report=term-missing --cov-report=xml"
diff --git a/requirements-dev.txt b/requirements-dev.txt
deleted file mode 100644
index 08798aa..0000000
--- a/requirements-dev.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-pytest
-pytest-cov
-pytest-timeout
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 8a77cb8..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,115 +0,0 @@
-[metadata]
-name=shtab
-description=Automagic shell tab completion for Python CLI applications
-long_description=file: README.rst
-long_description_content_type=text/x-rst
-license=Apache-2.0
-license_file=LICENCE
-url=https://github.com/iterative/shtab
-project_urls=
-    Changelog=https://github.com/iterative/shtab/releases
-    Documentation=https://docs.iterative.ai/shtab
-author=Casper da Costa-Luis
-author_email=casper.dcl@physics.org
-maintainer=Iterative
-maintainer_email=support@iterative.ai
-keywords=tab, complete, completion, shell, bash, zsh, argparse
-platforms=any
-provides=shtab
-classifiers=
-    Development Status :: 4 - Beta
-    Environment :: Console
-    Environment :: MacOS X
-    Environment :: Other Environment
-    Intended Audience :: Developers
-    Intended Audience :: Education
-    Intended Audience :: End Users/Desktop
-    Intended Audience :: Other Audience
-    Intended Audience :: System Administrators
-    License :: OSI Approved :: Apache Software License
-    Operating System :: MacOS
-    Operating System :: MacOS :: MacOS X
-    Operating System :: POSIX
-    Operating System :: POSIX :: BSD
-    Operating System :: POSIX :: BSD :: FreeBSD
-    Operating System :: POSIX :: Linux
-    Operating System :: POSIX :: SunOS/Solaris
-    Operating System :: Unix
-    Programming Language :: Other Scripting Engines
-    Programming Language :: Python
-    Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.7
-    Programming Language :: Python :: 3.8
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
-    Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: Implementation
-    Programming Language :: Python :: Implementation :: IronPython
-    Programming Language :: Python :: Implementation :: PyPy
-    Programming Language :: Unix Shell
-    Topic :: Desktop Environment
-    Topic :: Education :: Computer Aided Instruction (CAI)
-    Topic :: Education :: Testing
-    Topic :: Office/Business
-    Topic :: Other/Nonlisted Topic
-    Topic :: Software Development
-    Topic :: Software Development :: Build Tools
-    Topic :: Software Development :: Libraries
-    Topic :: Software Development :: Libraries :: Python Modules
-    Topic :: Software Development :: Pre-processors
-    Topic :: Software Development :: User Interfaces
-    Topic :: System
-    Topic :: System :: Installation/Setup
-    Topic :: System :: Shells
-    Topic :: System :: System Shells
-    Topic :: Terminals
-    Topic :: Utilities
-[options]
-setup_requires=setuptools>=42; wheel; setuptools_scm[toml]>=3.4
-python_requires=>=3.7
-packages=find:
-[options.entry_points]
-console_scripts=
-    shtab=shtab.main:main
-[options.package_data]
-shtab=py.typed
-[options.packages.find]
-exclude=docs,tests
-
-[flake8]
-max_line_length=99
-extend-ignore=E261,P1
-exclude=build,dist,.eggs,.git,__pycache__
-
-[mypy]
-warn_unused_configs=True
-warn_unused_ignores=True
-show_error_codes=True
-# https://github.com/pypa/setuptools_scm/issues/501
-[mypy-setuptools_scm]
-ignore_missing_imports=True
-
-[yapf]
-spaces_before_comment=15, 20
-arithmetic_precedence_indication=true
-allow_split_before_dict_value=false
-coalesce_brackets=True
-column_limit=99
-each_dict_entry_on_separate_line=False
-space_between_ending_comma_and_closing_bracket=False
-split_before_named_assigns=False
-split_before_closing_bracket=False
-blank_line_before_nested_class_or_def=False
-
-[isort]
-profile=black
-line_length=99
-known_first_party=shtab,tests
-
-[tool:pytest]
-timeout=5
-log_level=DEBUG
-python_files=test_*.py
-testpaths=tests
-addopts=-v --tb=short -rxs -W=error --durations=0 --cov=shtab --cov-report=term-missing --cov-report=xml
diff --git a/setup.py b/setup.py
deleted file mode 100644
index d5d43d7..0000000
--- a/setup.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from setuptools import setup
-
-setup(use_scm_version=True)
diff --git a/shtab/__init__.py b/shtab/__init__.py
index 21ae807..3564fb9 100644
--- a/shtab/__init__.py
+++ b/shtab/__init__.py
@@ -478,9 +478,8 @@ def format_optional(opt):
         return (('{nargs}{options}"[{help}]"' if isinstance(
             opt, FLAG_OPTION) else '{nargs}{options}"[{help}]:{dest}:{pattern}"').format(
                 nargs=('"(- : *)"' if is_opt_end(opt) else '"*"' if is_opt_multiline(opt) else ""),
-                options=("{{{}}}".format(",".join(opt.option_strings))
-                         if len(opt.option_strings) > 1 else '"{}"'.format("".join(
-                             opt.option_strings))),
+                options=("{{{}}}".format(",".join(opt.option_strings)) if len(opt.option_strings)
+                         > 1 else '"{}"'.format("".join(opt.option_strings))),
                 help=escape_zsh(opt.help or ""),
                 dest=opt.dest,
                 pattern=complete2pattern(opt.complete, "zsh", choice_type2fn) if hasattr(