My current ruff configuration in Django projects. https://beta.ruff.rs/docs/

pyproject.toml

[tool.ruff]
select = ["A", "B", "C4", "E", "F", "I", "DJ", "INP", "TID", "UP", "YTT"]
ignore = []

# Allow autofix for all enabled rules (when `--fix`) is provided.
fixable = ["A", "B", "C4", "E", "F", "I", "TID", "UP"]
unfixable = []

# Exclude a variety of commonly ignored directories.
exclude = [
    ".bzr",
    ".direnv",
    ".eggs",
    ".git",
    ".github",
    ".hg",
    ".ruff_cache",
    ".svn",
    ".tox",
    ".venv",
    "__pypackages__",
    "_build",
    "build",
    "dist",
    "migrations",
    "node_modules",
    "static",
]

# Same as Black.
line-length = 100

# Allow unused variables when underscore-prefixed.
dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"

# Assume Python 3.10.
target-version = "py311"

[tool.ruff.mccabe]
# Unlike Flake8, default to a complexity level of 10.
max-complexity = 10