My default configuration file for SwiftLint.

.swiftlint.yml

excluded: # paths to ignore during linting. Takes precedence over `included`.
  - Pods
  - .build
  - vendor/bundle
  - scripts
  - BuildTools
  - fastlane
  - templates
line_length: 160
identifier_name:
  allowed_symbols:
    - _ # Used in SwiftUI
  min_length: 3
  excluded:
    - id
    - ok # Okay
    - 'no' # Yes/No
    - to # From -> To
type_name:
  allowed_symbols:
    - _ # Used in SwiftUI
file_length:
  warning: 500
  error: 750
nesting:
  type_level:
    warning: 2
  function_level:
    warning: 5
private_outlet:
  allow_private_set: true
opt_in_rules:
  - private_outlet
disabled_rules:
  - trailing_comma