composer

# Get lenient.
composer require mglaman/composer-drupal-lenient

# Add the module to the allow list. Use escapes for the quote signs. \" ... \"
composer config --merge --json extra.drupal-lenient.allowed-list '[\"drupal/module_with_incompatible_core_version\"]'

# You can check if the merge worked, either just take a look
# into the composer.json or use this command.
composer config --merge --json extra.drupal-lenient.allowed-list

"drupal-lenient": {
  "allowed-list": [
    "drupal/module_with_incompatible_core_version"
  ]
}

composer require 'drupal/comment_notify'

drush pm:install comment_notify

  "extra": {
    "composer-exit-on-patch-failure": true,