diff --git a/pyproject.toml b/pyproject.toml
index 55a4d9e..4b293ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,6 +62,93 @@ dependencies = ["coverage[toml]>=6.5", "pytest>=6.0"]
 [[tool.hatch.envs.testall.matrix]]
 python = ["3.8", "3.9", "3.10", "3.11", "3.12"]
 
+[tool.isort]
+profile = "black"
+line_length = 80
+include_trailing_comma = true
+use_parentheses = true
+known_first_party = ["polymatch"]
+float_to_top = true
+
+[tool.black]
+line-length = 80
+target-version = ["py38"]
+include = '\.pyi?$'
+
+[tool.ruff]
+line-length = 80
+target-version = 'py38'
+
+[tool.ruff.format]
+docstring-code-format = true
+line-ending = "lf"
+skip-magic-trailing-comma = true
+
+[tool.ruff.lint]
+ignore-init-module-imports = false
+extend-safe-fixes = ["EM101", 'EM102', "TCH001", "SIM117", "SIM108", "ANN201"]
+ignore = [
+    "D",
+    "TRY003", # TODO(aspen): Switch to custom exceptions
+    "ANN101", # Due to be deprecated in ruff
+    "ANN102", # Due to be deprecated in ruff
+    "COM812", # Conflicts with formatter
+    "ISC001", # Conflicts with formatter
+    "EXE002", # pre-commit does it better, works with SMB shares
+    "FA100",
+]
+select = ["ALL"]
+
+[tool.ruff.lint.per-file-ignores]
+"tests/*.py" = [
+    "PLR2004", # Allow "magic values" in tests -aspen
+    "S101",    # Allow asserts in tests
+    "SIM201",  # We need to test weird comparison operators
+    "SIM202",  # We need to test weird comparison operstors
+    "SIM300",  # We need to test both forward and reverse comparisons
+    "FBT001",  # Boolean paramters are fine for test cases
+]
+
+[tool.ruff.lint.pycodestyle]
+max-line-length = 100
+
+[tool.ruff.lint.isort]
+split-on-trailing-comma = false
+
+[tool.ruff.lint.pydocstyle]
+convention = "pep257"
+
+[tool.mypy]
+namespace_packages = true
+python_version = "3.8"
+warn_unused_configs = true
+strict = true
+strict_optional = true
+ignore_missing_imports = true
+check_untyped_defs = true
+show_error_codes = true
+warn_unused_ignores = true
+no_implicit_reexport = true
+warn_redundant_casts = true
+strict_equality = true
+disallow_any_generics = true
+disallow_untyped_calls = true
+disallow_untyped_defs = true
+disallow_untyped_decorators = true
+extra_checks = true
+warn_unreachable = true
+warn_return_any = true
+warn_no_return = true
+enable_error_code = [
+    "redundant-self",
+    "redundant-expr",
+    "possibly-undefined",
+    "truthy-bool",
+    "truthy-iterable",
+    "ignore-without-code",
+    "unused-awaitable",
+]
+
 [tool.pytest.ini_options]
 minversion = "6.0"
 addopts = "--doctest-modules"