diff --git a/Gemfile.lock b/Gemfile.lock
index 0f0f09d..ef8314c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GIT
 PATH
   remote: .
   specs:
-    danger-packwerk (0.13.0)
+    danger-packwerk (0.14.0)
       code_ownership
       danger-plugin-api (~> 1.0)
       packwerk
@@ -61,9 +61,9 @@ GEM
       cork
       nap
       open4 (~> 1.3)
-    code_ownership (1.29.1)
+    code_ownership (1.29.2)
       code_teams (~> 1.0)
-      parse_packwerk
+      packs
       sorbet-runtime
     code_teams (1.0.0)
       sorbet-runtime
@@ -142,8 +142,10 @@ GEM
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
     open4 (1.3.4)
+    packs (0.0.5)
+      sorbet-runtime
     parallel (1.22.1)
-    parse_packwerk (0.17.0)
+    parse_packwerk (0.18.0)
       sorbet-runtime
     parser (3.1.3.0)
       ast (~> 2.4.1)
diff --git a/lib/danger-packwerk/private/ownership_information.rb b/lib/danger-packwerk/private/ownership_information.rb
index 4dcc36f..980908b 100644
--- a/lib/danger-packwerk/private/ownership_information.rb
+++ b/lib/danger-packwerk/private/ownership_information.rb
@@ -1,6 +1,7 @@
 # typed: strict
 
 require 'code_ownership'
+require 'packs'
 
 module DangerPackwerk
   module Private
@@ -14,7 +15,8 @@ class OwnershipInformation < T::Struct
 
       sig { params(package: ParsePackwerk::Package, org_name: String).returns(OwnershipInformation) }
       def self.for_package(package, org_name)
-        team = CodeOwnership.for_package(package)
+        pack = Packs.find(package.name)
+        team = pack.nil? ? nil : CodeOwnership.for_package(pack)
 
         if team.nil?
           OwnershipInformation.new
diff --git a/lib/danger-packwerk/version.rb b/lib/danger-packwerk/version.rb
index 9c5e9b3..0d2ae72 100644
--- a/lib/danger-packwerk/version.rb
+++ b/lib/danger-packwerk/version.rb
@@ -2,5 +2,5 @@
 # frozen_string_literal: true
 
 module DangerPackwerk
-  VERSION = '0.13.0'
+  VERSION = '0.14.0'
 end
diff --git a/sorbet/rbi/gems/code_ownership@1.29.1.rbi b/sorbet/rbi/gems/code_ownership@1.29.1.rbi
deleted file mode 100644
index 4315ad2..0000000
--- a/sorbet/rbi/gems/code_ownership@1.29.1.rbi
+++ /dev/null
@@ -1,336 +0,0 @@
-# typed: true
-
-# DO NOT EDIT MANUALLY
-# This is an autogenerated file for types exported from the `code_ownership` gem.
-# Please instead update this file by running `bin/tapioca gem code_ownership`.
-
-module CodeOwnership
-  extend ::CodeOwnership
-
-  requires_ancestor { Kernel }
-
-  sig do
-    params(
-      backtrace: T.nilable(T::Array[::String]),
-      excluded_teams: T::Array[::CodeTeams::Team]
-    ).returns(T.nilable(::CodeTeams::Team))
-  end
-  def for_backtrace(backtrace, excluded_teams: T.unsafe(nil)); end
-
-  sig { params(klass: T.nilable(T.any(::Class, ::Module))).returns(T.nilable(::CodeTeams::Team)) }
-  def for_class(klass); end
-
-  sig { params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
-  def for_file(file); end
-
-  sig { params(package: ::ParsePackwerk::Package).returns(T.nilable(::CodeTeams::Team)) }
-  def for_package(package); end
-
-  sig { params(team: T.any(::CodeTeams::Team, ::String)).returns(::String) }
-  def for_team(team); end
-
-  sig { params(files: T::Array[::String], autocorrect: T::Boolean, stage_changes: T::Boolean).void }
-  def validate!(files: T.unsafe(nil), autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
-
-  class << self
-    sig { void }
-    def bust_caches!; end
-
-    sig { params(filename: ::String).void }
-    def remove_file_annotation!(filename); end
-  end
-end
-
-class CodeOwnership::Cli
-  class << self
-    def for_file(argv); end
-    def for_team(argv); end
-    def run!(argv); end
-
-    private
-
-    def validate!(argv); end
-  end
-end
-
-class CodeOwnership::InvalidCodeOwnershipConfigurationError < ::StandardError; end
-
-module CodeOwnership::Private
-  class << self
-    sig { void }
-    def bust_caches!; end
-
-    sig { returns(::CodeOwnership::Private::Configuration) }
-    def configuration; end
-
-    sig { returns(::CodeOwnership::Private::OwnershipMappers::FileAnnotations) }
-    def file_annotations_mapper; end
-
-    sig { params(files: T::Array[::String]).returns(T::Hash[::String, T::Array[::String]]) }
-    def files_by_mapper(files); end
-
-    sig { params(team_name: ::String, location_of_reference: ::String).returns(::CodeTeams::Team) }
-    def find_team!(team_name, location_of_reference); end
-
-    sig { returns(T::Array[::CodeOwnership::Private::OwnershipMappers::Interface]) }
-    def mappers; end
-
-    sig { params(klass: T.nilable(T.any(::Class, ::Module))).returns(T.nilable(::String)) }
-    def path_from_klass(klass); end
-
-    sig { returns(T::Array[::String]) }
-    def tracked_files; end
-
-    sig { params(files: T::Array[::String], autocorrect: T::Boolean, stage_changes: T::Boolean).void }
-    def validate!(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
-  end
-end
-
-class CodeOwnership::Private::Configuration < ::T::Struct
-  const :js_package_paths, T::Array[::String]
-  const :owned_globs, T::Array[::String]
-  const :skip_codeowners_validation, T::Boolean
-  const :unowned_globs, T::Array[::String]
-
-  class << self
-    sig { returns(::CodeOwnership::Private::Configuration) }
-    def fetch; end
-
-    def inherited(s); end
-
-    sig { params(config_hash: T::Hash[T.untyped, T.untyped]).returns(T::Array[::String]) }
-    def js_package_paths(config_hash); end
-  end
-end
-
-CodeOwnership::Private::Configuration::DEFAULT_JS_PACKAGE_PATHS = T.let(T.unsafe(nil), Array)
-module CodeOwnership::Private::OwnershipMappers; end
-
-class CodeOwnership::Private::OwnershipMappers::FileAnnotations
-  include ::CodeOwnership::Private::OwnershipMappers::Interface
-
-  sig { override.void }
-  def bust_caches!; end
-
-  sig { override.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def codeowners_lines_to_owners; end
-
-  sig { override.returns(::String) }
-  def description; end
-
-  sig { params(filename: ::String).returns(T.nilable(::CodeTeams::Team)) }
-  def file_annotation_based_owner(filename); end
-
-  sig { override.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
-  def map_file_to_owner(file); end
-
-  sig { override.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def map_files_to_owners(files); end
-
-  sig { params(filename: ::String).void }
-  def remove_file_annotation!(filename); end
-end
-
-CodeOwnership::Private::OwnershipMappers::FileAnnotations::TEAM_PATTERN = T.let(T.unsafe(nil), Regexp)
-
-module CodeOwnership::Private::OwnershipMappers::Interface
-  interface!
-
-  sig { abstract.void }
-  def bust_caches!; end
-
-  sig { abstract.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def codeowners_lines_to_owners; end
-
-  sig { abstract.returns(::String) }
-  def description; end
-
-  sig { abstract.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
-  def map_file_to_owner(file); end
-
-  sig { abstract.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def map_files_to_owners(files); end
-end
-
-class CodeOwnership::Private::OwnershipMappers::JsPackageOwnership
-  include ::CodeOwnership::Private::OwnershipMappers::Interface
-
-  sig { override.void }
-  def bust_caches!; end
-
-  sig { override.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def codeowners_lines_to_owners; end
-
-  sig { override.returns(::String) }
-  def description; end
-
-  sig { override.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
-  def map_file_to_owner(file); end
-
-  sig { override.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def map_files_to_owners(files); end
-
-  sig { params(package: ::CodeOwnership::Private::ParseJsPackages::Package).returns(T.nilable(::CodeTeams::Team)) }
-  def owner_for_package(package); end
-
-  private
-
-  sig { params(file: ::String).returns(T.nilable(::CodeOwnership::Private::ParseJsPackages::Package)) }
-  def map_file_to_relevant_package(file); end
-end
-
-class CodeOwnership::Private::OwnershipMappers::PackageOwnership
-  include ::CodeOwnership::Private::OwnershipMappers::Interface
-
-  sig { override.void }
-  def bust_caches!; end
-
-  sig { override.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def codeowners_lines_to_owners; end
-
-  sig { override.returns(::String) }
-  def description; end
-
-  sig { override.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
-  def map_file_to_owner(file); end
-
-  sig { override.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def map_files_to_owners(files); end
-
-  sig { params(package: ::ParsePackwerk::Package).returns(T.nilable(::CodeTeams::Team)) }
-  def owner_for_package(package); end
-end
-
-class CodeOwnership::Private::OwnershipMappers::TeamGlobs
-  include ::CodeOwnership::Private::OwnershipMappers::Interface
-
-  sig { override.void }
-  def bust_caches!; end
-
-  sig { override.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def codeowners_lines_to_owners; end
-
-  sig { override.returns(::String) }
-  def description; end
-
-  sig { override.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
-  def map_file_to_owner(file); end
-
-  sig { override.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
-  def map_files_to_owners(files); end
-end
-
-module CodeOwnership::Private::ParseJsPackages
-  class << self
-    sig { returns(T::Array[::CodeOwnership::Private::ParseJsPackages::Package]) }
-    def all; end
-  end
-end
-
-CodeOwnership::Private::ParseJsPackages::METADATA = T.let(T.unsafe(nil), String)
-CodeOwnership::Private::ParseJsPackages::PACKAGE_JSON_NAME = T.let(T.unsafe(nil), String)
-
-class CodeOwnership::Private::ParseJsPackages::Package < ::T::Struct
-  const :metadata, T::Hash[::String, T.untyped]
-  const :name, ::String
-
-  sig { returns(::Pathname) }
-  def directory; end
-
-  class << self
-    sig { params(pathname: ::Pathname).returns(::CodeOwnership::Private::ParseJsPackages::Package) }
-    def from(pathname); end
-
-    def inherited(s); end
-  end
-end
-
-CodeOwnership::Private::ParseJsPackages::ROOT_PACKAGE_NAME = T.let(T.unsafe(nil), String)
-module CodeOwnership::Private::TeamPlugins; end
-
-class CodeOwnership::Private::TeamPlugins::Github < ::CodeTeams::Plugin
-  sig { returns(::CodeOwnership::Private::TeamPlugins::Github::GithubStruct) }
-  def github; end
-end
-
-class CodeOwnership::Private::TeamPlugins::Github::GithubStruct < ::Struct
-  def do_not_add_to_codeowners_file; end
-  def do_not_add_to_codeowners_file=(_); end
-  def team; end
-  def team=(_); end
-
-  class << self
-    def [](*_arg0); end
-    def inspect; end
-    def members; end
-    def new(*_arg0); end
-  end
-end
-
-class CodeOwnership::Private::TeamPlugins::Ownership < ::CodeTeams::Plugin
-  sig { returns(T::Array[::String]) }
-  def owned_globs; end
-end
-
-module CodeOwnership::Private::Validations; end
-
-class CodeOwnership::Private::Validations::FilesHaveOwners
-  include ::CodeOwnership::Private::Validations::Interface
-
-  sig do
-    override
-      .params(
-        files: T::Array[::String],
-        autocorrect: T::Boolean,
-        stage_changes: T::Boolean
-      ).returns(T::Array[::String])
-  end
-  def validation_errors(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
-end
-
-class CodeOwnership::Private::Validations::FilesHaveUniqueOwners
-  include ::CodeOwnership::Private::Validations::Interface
-
-  sig do
-    override
-      .params(
-        files: T::Array[::String],
-        autocorrect: T::Boolean,
-        stage_changes: T::Boolean
-      ).returns(T::Array[::String])
-  end
-  def validation_errors(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
-end
-
-class CodeOwnership::Private::Validations::GithubCodeownersUpToDate
-  include ::CodeOwnership::Private::Validations::Interface
-
-  sig do
-    override
-      .params(
-        files: T::Array[::String],
-        autocorrect: T::Boolean,
-        stage_changes: T::Boolean
-      ).returns(T::Array[::String])
-  end
-  def validation_errors(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
-
-  private
-
-  sig { returns(T::Array[::String]) }
-  def codeowners_file_lines; end
-end
-
-module CodeOwnership::Private::Validations::Interface
-  interface!
-
-  sig do
-    abstract
-      .params(
-        files: T::Array[::String],
-        autocorrect: T::Boolean,
-        stage_changes: T::Boolean
-      ).returns(T::Array[::String])
-  end
-  def validation_errors(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
-end
diff --git a/sorbet/rbi/gems/code_ownership@1.29.2.rbi b/sorbet/rbi/gems/code_ownership@1.29.2.rbi
new file mode 100644
index 0000000..e8d648b
--- /dev/null
+++ b/sorbet/rbi/gems/code_ownership@1.29.2.rbi
@@ -0,0 +1,525 @@
+# typed: true
+
+# DO NOT EDIT MANUALLY
+# This is an autogenerated file for types exported from the `code_ownership` gem.
+# Please instead update this file by running `bin/tapioca gem code_ownership`.
+
+# source://code_ownership//lib/code_ownership/cli.rb#7
+module CodeOwnership
+  extend ::CodeOwnership
+
+  requires_ancestor { Kernel }
+
+  # Given a backtrace from either `Exception#backtrace` or `caller`, find the
+  # first line that corresponds to a file with assigned ownership
+  #
+  # source://code_ownership//lib/code_ownership.rb#95
+  sig do
+    params(
+      backtrace: T.nilable(T::Array[::String]),
+      excluded_teams: T::Array[::CodeTeams::Team]
+    ).returns(T.nilable(::CodeTeams::Team))
+  end
+  def for_backtrace(backtrace, excluded_teams: T.unsafe(nil)); end
+
+  # source://code_ownership//lib/code_ownership.rb#127
+  sig { params(klass: T.nilable(T.any(::Class, ::Module))).returns(T.nilable(::CodeTeams::Team)) }
+  def for_class(klass); end
+
+  # source://code_ownership//lib/code_ownership.rb#21
+  sig { params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
+  def for_file(file); end
+
+  # source://code_ownership//lib/code_ownership.rb#144
+  sig { params(package: ::Packs::Pack).returns(T.nilable(::CodeTeams::Team)) }
+  def for_package(package); end
+
+  # source://code_ownership//lib/code_ownership.rb#39
+  sig { params(team: T.any(::CodeTeams::Team, ::String)).returns(::String) }
+  def for_team(team); end
+
+  # source://code_ownership//lib/code_ownership.rb#83
+  sig { params(files: T::Array[::String], autocorrect: T::Boolean, stage_changes: T::Boolean).void }
+  def validate!(files: T.unsafe(nil), autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
+
+  class << self
+    # Generally, you should not ever need to do this, because once your ruby process loads, cached content should not change.
+    # Namely, the set of files, packages, and directories which are tracked for ownership should not change.
+    # The primary reason this is helpful is for clients of CodeOwnership who want to test their code, and each test context
+    # has different ownership and tracked files.
+    #
+    # source://code_ownership//lib/code_ownership.rb#153
+    sig { void }
+    def bust_caches!; end
+
+    # source://code_ownership//lib/code_ownership.rb#72
+    sig { params(filename: ::String).void }
+    def remove_file_annotation!(filename); end
+  end
+end
+
+# source://code_ownership//lib/code_ownership/cli.rb#8
+class CodeOwnership::Cli
+  class << self
+    # For now, this just returns team ownership
+    # Later, this could also return code ownership errors about that file.
+    #
+    # source://code_ownership//lib/code_ownership/cli.rb#76
+    def for_file(argv); end
+
+    # source://code_ownership//lib/code_ownership/cli.rb#123
+    def for_team(argv); end
+
+    # source://code_ownership//lib/code_ownership/cli.rb#9
+    def run!(argv); end
+
+    private
+
+    # source://code_ownership//lib/code_ownership/cli.rb#33
+    def validate!(argv); end
+  end
+end
+
+# source://code_ownership//lib/code_ownership.rb#68
+class CodeOwnership::InvalidCodeOwnershipConfigurationError < ::StandardError; end
+
+# source://code_ownership//lib/code_ownership/private/configuration.rb#4
+module CodeOwnership::Private
+  class << self
+    # source://code_ownership//lib/code_ownership/private.rb#30
+    sig { void }
+    def bust_caches!; end
+
+    # source://code_ownership//lib/code_ownership/private.rb#24
+    sig { returns(::CodeOwnership::Private::Configuration) }
+    def configuration; end
+
+    # source://code_ownership//lib/code_ownership/private.rb#69
+    sig { returns(::CodeOwnership::Private::OwnershipMappers::FileAnnotations) }
+    def file_annotations_mapper; end
+
+    # source://code_ownership//lib/code_ownership/private.rb#106
+    sig { params(files: T::Array[::String]).returns(T::Hash[::String, T::Array[::String]]) }
+    def files_by_mapper(files); end
+
+    # source://code_ownership//lib/code_ownership/private.rb#96
+    sig { params(team_name: ::String, location_of_reference: ::String).returns(::CodeTeams::Team) }
+    def find_team!(team_name, location_of_reference); end
+
+    # source://code_ownership//lib/code_ownership/private.rb#59
+    sig { returns(T::Array[::CodeOwnership::Private::OwnershipMappers::Interface]) }
+    def mappers; end
+
+    # Returns a string version of the relative path to a Rails constant,
+    # or nil if it can't find something
+    #
+    # source://code_ownership//lib/code_ownership/private.rb#77
+    sig { params(klass: T.nilable(T.any(::Class, ::Module))).returns(T.nilable(::String)) }
+    def path_from_klass(klass); end
+
+    # The output of this function is string pathnames relative to the root.
+    #
+    # source://code_ownership//lib/code_ownership/private.rb#90
+    sig { returns(T::Array[::String]) }
+    def tracked_files; end
+
+    # source://code_ownership//lib/code_ownership/private.rb#37
+    sig { params(files: T::Array[::String], autocorrect: T::Boolean, stage_changes: T::Boolean).void }
+    def validate!(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
+  end
+end
+
+# source://code_ownership//lib/code_ownership/private/configuration.rb#5
+class CodeOwnership::Private::Configuration < ::T::Struct
+  const :owned_globs, T::Array[::String]
+  const :unowned_globs, T::Array[::String]
+  const :js_package_paths, T::Array[::String]
+  const :skip_codeowners_validation, T::Boolean
+
+  class << self
+    # source://code_ownership//lib/code_ownership/private/configuration.rb#15
+    sig { returns(::CodeOwnership::Private::Configuration) }
+    def fetch; end
+
+    # source://sorbet-runtime/0.5.10588/lib/types/struct.rb#13
+    def inherited(s); end
+
+    # source://code_ownership//lib/code_ownership/private/configuration.rb#27
+    sig { params(config_hash: T::Hash[T.untyped, T.untyped]).returns(T::Array[::String]) }
+    def js_package_paths(config_hash); end
+  end
+end
+
+# source://code_ownership//lib/code_ownership/private/configuration.rb#7
+CodeOwnership::Private::Configuration::DEFAULT_JS_PACKAGE_PATHS = T.let(T.unsafe(nil), Array)
+
+# source://code_ownership//lib/code_ownership/private/ownership_mappers/interface.rb#7
+module CodeOwnership::Private::OwnershipMappers; end
+
+# Calculate, cache, and return a mapping of file names (relative to the root
+# of the repository) to team name.
+#
+# Example:
+#
+#   {
+#     'app/models/company.rb' => Team.find('Setup & Onboarding'),
+#     ...
+#   }
+#
+# source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#17
+class CodeOwnership::Private::OwnershipMappers::FileAnnotations
+  include ::CodeOwnership::Private::OwnershipMappers::Interface
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#113
+  sig { override.void }
+  def bust_caches!; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#102
+  sig { override.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def codeowners_lines_to_owners; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#108
+  sig { override.returns(::String) }
+  def description; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#50
+  sig { params(filename: ::String).returns(T.nilable(::CodeTeams::Team)) }
+  def file_annotation_based_owner(filename); end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#29
+  sig { override.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
+  def map_file_to_owner(file); end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#38
+  sig { override.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def map_files_to_owners(files); end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#86
+  sig { params(filename: ::String).void }
+  def remove_file_annotation!(filename); end
+end
+
+# source://code_ownership//lib/code_ownership/private/ownership_mappers/file_annotations.rb#23
+CodeOwnership::Private::OwnershipMappers::FileAnnotations::TEAM_PATTERN = T.let(T.unsafe(nil), Regexp)
+
+# @abstract Subclasses must implement the `abstract` methods below.
+#
+# source://code_ownership//lib/code_ownership/private/ownership_mappers/interface.rb#8
+module CodeOwnership::Private::OwnershipMappers::Interface
+  interface!
+
+  # @abstract
+  #
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/interface.rb#45
+  sig { abstract.void }
+  def bust_caches!; end
+
+  # @abstract
+  #
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/interface.rb#37
+  sig { abstract.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def codeowners_lines_to_owners; end
+
+  # @abstract
+  #
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/interface.rb#41
+  sig { abstract.returns(::String) }
+  def description; end
+
+  # This should be fast when run with ONE file
+  #
+  # @abstract
+  #
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/interface.rb#21
+  sig { abstract.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
+  def map_file_to_owner(file); end
+
+  # This should be fast when run with MANY files
+  #
+  # @abstract
+  #
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/interface.rb#31
+  sig { abstract.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def map_files_to_owners(files); end
+end
+
+# source://code_ownership//lib/code_ownership/private/ownership_mappers/js_package_ownership.rb#8
+class CodeOwnership::Private::OwnershipMappers::JsPackageOwnership
+  include ::CodeOwnership::Private::OwnershipMappers::Interface
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/js_package_ownership.rb#80
+  sig { override.void }
+  def bust_caches!; end
+
+  # Package ownership ignores the passed in files when generating code owners lines.
+  # This is because Package ownership knows that the fastest way to find code owners for package based ownership
+  # is to simply iterate over the packages and grab the owner, rather than iterating over each file just to get what package it is in
+  # In theory this means that we may generate code owners lines that cover files that are not in the passed in argument,
+  # but in practice this is not of consequence because in reality we never really want to generate code owners for only a
+  # subset of files, but rather we want code ownership for all files.
+  #
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/js_package_ownership.rb#54
+  sig { override.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def codeowners_lines_to_owners; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/js_package_ownership.rb#64
+  sig { override.returns(::String) }
+  def description; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/js_package_ownership.rb#18
+  sig { override.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
+  def map_file_to_owner(file); end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/js_package_ownership.rb#31
+  sig { override.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def map_files_to_owners(files); end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/js_package_ownership.rb#69
+  sig { params(package: ::CodeOwnership::Private::ParseJsPackages::Package).returns(T.nilable(::CodeTeams::Team)) }
+  def owner_for_package(package); end
+
+  private
+
+  # takes a file and finds the relevant `package.json` file by walking up the directory
+  # structure. Example, given `packages/a/b/c.rb`, this looks for `packages/a/b/package.json`, `packages/a/package.json`,
+  # `packages/package.json`, and `package.json` in that order, stopping at the first file to actually exist.
+  # We do additional caching so that we don't have to check for file existence every time
+  #
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/js_package_ownership.rb#91
+  sig { params(file: ::String).returns(T.nilable(::CodeOwnership::Private::ParseJsPackages::Package)) }
+  def map_file_to_relevant_package(file); end
+end
+
+# source://code_ownership//lib/code_ownership/private/ownership_mappers/package_ownership.rb#8
+class CodeOwnership::Private::OwnershipMappers::PackageOwnership
+  include ::CodeOwnership::Private::OwnershipMappers::Interface
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/package_ownership.rb#80
+  sig { override.void }
+  def bust_caches!; end
+
+  # Package ownership ignores the passed in files when generating code owners lines.
+  # This is because Package ownership knows that the fastest way to find code owners for package based ownership
+  # is to simply iterate over the packages and grab the owner, rather than iterating over each file just to get what package it is in
+  # In theory this means that we may generate code owners lines that cover files that are not in the passed in argument,
+  # but in practice this is not of consequence because in reality we never really want to generate code owners for only a
+  # subset of files, but rather we want code ownership for all files.
+  #
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/package_ownership.rb#54
+  sig { override.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def codeowners_lines_to_owners; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/package_ownership.rb#64
+  sig { override.returns(::String) }
+  def description; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/package_ownership.rb#18
+  sig { override.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
+  def map_file_to_owner(file); end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/package_ownership.rb#31
+  sig { override.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def map_files_to_owners(files); end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/package_ownership.rb#69
+  sig { params(package: ::Packs::Pack).returns(T.nilable(::CodeTeams::Team)) }
+  def owner_for_package(package); end
+end
+
+# source://code_ownership//lib/code_ownership/private/ownership_mappers/team_globs.rb#8
+class CodeOwnership::Private::OwnershipMappers::TeamGlobs
+  include ::CodeOwnership::Private::OwnershipMappers::Interface
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/team_globs.rb#56
+  sig { override.void }
+  def bust_caches!; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/team_globs.rb#45
+  sig { override.returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def codeowners_lines_to_owners; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/team_globs.rb#62
+  sig { override.returns(::String) }
+  def description; end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/team_globs.rb#38
+  sig { override.params(file: ::String).returns(T.nilable(::CodeTeams::Team)) }
+  def map_file_to_owner(file); end
+
+  # source://code_ownership//lib/code_ownership/private/ownership_mappers/team_globs.rb#22
+  sig { override.params(files: T::Array[::String]).returns(T::Hash[::String, T.nilable(::CodeTeams::Team)]) }
+  def map_files_to_owners(files); end
+end
+
+# Modeled off of ParsePackwerk
+#
+# source://code_ownership//lib/code_ownership/private/parse_js_packages.rb#8
+module CodeOwnership::Private::ParseJsPackages
+  class << self
+    # source://code_ownership//lib/code_ownership/private/parse_js_packages.rb#57
+    sig { returns(T::Array[::CodeOwnership::Private::ParseJsPackages::Package]) }
+    def all; end
+  end
+end
+
+# source://code_ownership//lib/code_ownership/private/parse_js_packages.rb#13
+CodeOwnership::Private::ParseJsPackages::METADATA = T.let(T.unsafe(nil), String)
+
+# source://code_ownership//lib/code_ownership/private/parse_js_packages.rb#12
+CodeOwnership::Private::ParseJsPackages::PACKAGE_JSON_NAME = T.let(T.unsafe(nil), String)
+
+# source://code_ownership//lib/code_ownership/private/parse_js_packages.rb#15
+class CodeOwnership::Private::ParseJsPackages::Package < ::T::Struct
+  const :name, ::String
+  const :metadata, T::Hash[::String, T.untyped]
+
+  # source://code_ownership//lib/code_ownership/private/parse_js_packages.rb#48
+  sig { returns(::Pathname) }
+  def directory; end
+
+  class << self
+    # source://code_ownership//lib/code_ownership/private/parse_js_packages.rb#22
+    sig { params(pathname: ::Pathname).returns(::CodeOwnership::Private::ParseJsPackages::Package) }
+    def from(pathname); end
+
+    # source://sorbet-runtime/0.5.10588/lib/types/struct.rb#13
+    def inherited(s); end
+  end
+end
+
+# source://code_ownership//lib/code_ownership/private/parse_js_packages.rb#11
+CodeOwnership::Private::ParseJsPackages::ROOT_PACKAGE_NAME = T.let(T.unsafe(nil), String)
+
+# source://code_ownership//lib/code_ownership/private/team_plugins/ownership.rb#5
+module CodeOwnership::Private::TeamPlugins; end
+
+# source://code_ownership//lib/code_ownership/private/team_plugins/github.rb#6
+class CodeOwnership::Private::TeamPlugins::Github < ::CodeTeams::Plugin
+  # source://code_ownership//lib/code_ownership/private/team_plugins/github.rb#13
+  sig { returns(::CodeOwnership::Private::TeamPlugins::Github::GithubStruct) }
+  def github; end
+end
+
+# source://code_ownership//lib/code_ownership/private/team_plugins/github.rb#10
+class CodeOwnership::Private::TeamPlugins::Github::GithubStruct < ::Struct
+  # Returns the value of attribute do_not_add_to_codeowners_file
+  #
+  # @return [Object] the current value of do_not_add_to_codeowners_file
+  def do_not_add_to_codeowners_file; end
+
+  # Sets the attribute do_not_add_to_codeowners_file
+  #
+  # @param value [Object] the value to set the attribute do_not_add_to_codeowners_file to.
+  # @return [Object] the newly set value
+  #
+  # source://code_ownership//lib/code_ownership/private/team_plugins/github.rb#10
+  def do_not_add_to_codeowners_file=(_); end
+
+  # Returns the value of attribute team
+  #
+  # @return [Object] the current value of team
+  def team; end
+
+  # Sets the attribute team
+  #
+  # @param value [Object] the value to set the attribute team to.
+  # @return [Object] the newly set value
+  #
+  # source://code_ownership//lib/code_ownership/private/team_plugins/github.rb#10
+  def team=(_); end
+
+  class << self
+    def [](*_arg0); end
+    def inspect; end
+    def members; end
+    def new(*_arg0); end
+  end
+end
+
+# source://code_ownership//lib/code_ownership/private/team_plugins/ownership.rb#6
+class CodeOwnership::Private::TeamPlugins::Ownership < ::CodeTeams::Plugin
+  # source://code_ownership//lib/code_ownership/private/team_plugins/ownership.rb#11
+  sig { returns(T::Array[::String]) }
+  def owned_globs; end
+end
+
+# source://code_ownership//lib/code_ownership/private/validations/interface.rb#5
+module CodeOwnership::Private::Validations; end
+
+# source://code_ownership//lib/code_ownership/private/validations/files_have_owners.rb#6
+class CodeOwnership::Private::Validations::FilesHaveOwners
+  include ::CodeOwnership::Private::Validations::Interface
+
+  # source://code_ownership//lib/code_ownership/private/validations/files_have_owners.rb#12
+  sig do
+    override
+      .params(
+        files: T::Array[::String],
+        autocorrect: T::Boolean,
+        stage_changes: T::Boolean
+      ).returns(T::Array[::String])
+  end
+  def validation_errors(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
+end
+
+# source://code_ownership//lib/code_ownership/private/validations/files_have_unique_owners.rb#6
+class CodeOwnership::Private::Validations::FilesHaveUniqueOwners
+  include ::CodeOwnership::Private::Validations::Interface
+
+  # source://code_ownership//lib/code_ownership/private/validations/files_have_unique_owners.rb#12
+  sig do
+    override
+      .params(
+        files: T::Array[::String],
+        autocorrect: T::Boolean,
+        stage_changes: T::Boolean
+      ).returns(T::Array[::String])
+  end
+  def validation_errors(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
+end
+
+# source://code_ownership//lib/code_ownership/private/validations/github_codeowners_up_to_date.rb#6
+class CodeOwnership::Private::Validations::GithubCodeownersUpToDate
+  include ::CodeOwnership::Private::Validations::Interface
+
+  # source://code_ownership//lib/code_ownership/private/validations/github_codeowners_up_to_date.rb#12
+  sig do
+    override
+      .params(
+        files: T::Array[::String],
+        autocorrect: T::Boolean,
+        stage_changes: T::Boolean
+      ).returns(T::Array[::String])
+  end
+  def validation_errors(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
+
+  private
+
+  # Generate the contents of a CODEOWNERS file that GitHub can use to
+  # automatically assign reviewers
+  # https://help.github.com/articles/about-codeowners/
+  #
+  # source://code_ownership//lib/code_ownership/private/validations/github_codeowners_up_to_date.rb#100
+  sig { returns(T::Array[::String]) }
+  def codeowners_file_lines; end
+end
+
+# @abstract Subclasses must implement the `abstract` methods below.
+#
+# source://code_ownership//lib/code_ownership/private/validations/interface.rb#6
+module CodeOwnership::Private::Validations::Interface
+  interface!
+
+  # @abstract
+  #
+  # source://code_ownership//lib/code_ownership/private/validations/interface.rb#13
+  sig do
+    abstract
+      .params(
+        files: T::Array[::String],
+        autocorrect: T::Boolean,
+        stage_changes: T::Boolean
+      ).returns(T::Array[::String])
+  end
+  def validation_errors(files:, autocorrect: T.unsafe(nil), stage_changes: T.unsafe(nil)); end
+end
diff --git a/sorbet/rbi/gems/packs@0.0.5.rbi b/sorbet/rbi/gems/packs@0.0.5.rbi
new file mode 100644
index 0000000..399b800
--- /dev/null
+++ b/sorbet/rbi/gems/packs@0.0.5.rbi
@@ -0,0 +1,111 @@
+# typed: true
+
+# DO NOT EDIT MANUALLY
+# This is an autogenerated file for types exported from the `packs` gem.
+# Please instead update this file by running `bin/tapioca gem packs`.
+
+# source://packs//lib/packs/pack.rb#3
+module Packs
+  class << self
+    # source://packs//lib/packs.rb#16
+    sig { returns(T::Array[::Packs::Pack]) }
+    def all; end
+
+    # source://packs//lib/packs.rb#34
+    sig { void }
+    def bust_cache!; end
+
+    # source://packs//lib/packs.rb#41
+    sig { returns(::Packs::Private::Configuration) }
+    def config; end
+
+    # @yield [config]
+    #
+    # source://packs//lib/packs.rb#47
+    sig { params(blk: T.proc.params(arg0: ::Packs::Private::Configuration).void).void }
+    def configure(&blk); end
+
+    # source://packs//lib/packs.rb#21
+    sig { params(name: ::String).returns(T.nilable(::Packs::Pack)) }
+    def find(name); end
+
+    # source://packs//lib/packs.rb#26
+    sig { params(file_path: T.any(::Pathname, ::String)).returns(T.nilable(::Packs::Pack)) }
+    def for_file(file_path); end
+
+    private
+
+    # source://packs//lib/packs.rb#73
+    sig { returns(T::Array[::Pathname]) }
+    def package_glob_patterns; end
+
+    # source://packs//lib/packs.rb#59
+    sig { returns(T::Hash[::String, ::Packs::Pack]) }
+    def packs_by_name; end
+  end
+end
+
+# source://packs//lib/packs.rb#10
+Packs::PACKAGE_FILE = T.let(T.unsafe(nil), String)
+
+# source://packs//lib/packs/pack.rb#4
+class Packs::Pack < ::T::Struct
+  const :name, ::String
+  const :path, ::Pathname
+  const :relative_path, ::Pathname
+  const :raw_hash, T::Hash[T.untyped, T.untyped]
+
+  # source://packs//lib/packs/pack.rb#34
+  sig { returns(::String) }
+  def last_name; end
+
+  # source://packs//lib/packs/pack.rb#39
+  sig { returns(T::Hash[T.untyped, T.untyped]) }
+  def metadata; end
+
+  # source://packs//lib/packs/pack.rb#28
+  sig { params(relative: T::Boolean).returns(::Pathname) }
+  def yml(relative: T.unsafe(nil)); end
+
+  class << self
+    # source://packs//lib/packs/pack.rb#13
+    sig { params(package_yml_absolute_path: ::Pathname).returns(::Packs::Pack) }
+    def from(package_yml_absolute_path); end
+
+    # source://sorbet-runtime/0.5.10588/lib/types/struct.rb#13
+    def inherited(s); end
+  end
+end
+
+# source://packs//lib/packs/private/configuration.rb#4
+module Packs::Private
+  class << self
+    # source://packs//lib/packs/private.rb#10
+    sig { returns(::Pathname) }
+    def root; end
+  end
+end
+
+# source://packs//lib/packs/private/configuration.rb#5
+class Packs::Private::Configuration < ::T::Struct
+  prop :pack_paths, T::Array[::String]
+
+  class << self
+    # source://packs//lib/packs/private/configuration.rb#17
+    sig { returns(::Packs::Private::Configuration) }
+    def fetch; end
+
+    # source://sorbet-runtime/0.5.10588/lib/types/struct.rb#13
+    def inherited(s); end
+
+    # source://packs//lib/packs/private/configuration.rb#26
+    sig { params(config_hash: T::Hash[T.untyped, T.untyped]).returns(T::Array[::String]) }
+    def pack_paths(config_hash); end
+  end
+end
+
+# source://packs//lib/packs/private/configuration.rb#7
+Packs::Private::Configuration::CONFIGURATION_PATHNAME = T.let(T.unsafe(nil), Pathname)
+
+# source://packs//lib/packs/private/configuration.rb#9
+Packs::Private::Configuration::DEFAULT_PACK_PATHS = T.let(T.unsafe(nil), Array)
diff --git a/sorbet/rbi/gems/parse_packwerk@0.16.0.rbi b/sorbet/rbi/gems/parse_packwerk@0.18.0.rbi
similarity index 90%
rename from sorbet/rbi/gems/parse_packwerk@0.16.0.rbi
rename to sorbet/rbi/gems/parse_packwerk@0.18.0.rbi
index 49e5a19..1bebe2d 100644
--- a/sorbet/rbi/gems/parse_packwerk@0.16.0.rbi
+++ b/sorbet/rbi/gems/parse_packwerk@0.18.0.rbi
@@ -11,7 +11,7 @@ module ParsePackwerk
     sig { returns(T::Array[::ParsePackwerk::Package]) }
     def all; end
 
-    # source://parse_packwerk//lib/parse_packwerk.rb#112
+    # source://parse_packwerk//lib/parse_packwerk.rb#110
     sig { void }
     def bust_cache!; end
 
@@ -36,7 +36,7 @@ module ParsePackwerk
     # We memoize packages_by_name for fast lookup.
     # Since Graph is an immutable value object, we can create indexes and general caching mechanisms safely.
     #
-    # source://parse_packwerk//lib/parse_packwerk.rb#100
+    # source://parse_packwerk//lib/parse_packwerk.rb#98
     sig { returns(T::Hash[::String, ::ParsePackwerk::Package]) }
     def packages_by_name; end
   end
@@ -120,38 +120,39 @@ ParsePackwerk::PUBLIC_PATH = T.let(T.unsafe(nil), String)
 # source://parse_packwerk//lib/parse_packwerk/package.rb#4
 class ParsePackwerk::Package < ::T::Struct
   const :name, ::String
-  const :enforce_dependencies, T::Boolean
-  const :enforce_privacy, T::Boolean
+  const :enforce_dependencies, T.any(::String, T::Boolean)
+  const :enforce_privacy, T.any(::String, T::Boolean)
   const :public_path, ::String, default: T.unsafe(nil)
   const :metadata, T::Hash[T.untyped, T.untyped]
   const :dependencies, T::Array[::String]
+  const :config, T::Hash[T.untyped, T.untyped]
 
-  # source://parse_packwerk//lib/parse_packwerk/package.rb#35
+  # source://parse_packwerk//lib/parse_packwerk/package.rb#37
   sig { returns(::Pathname) }
   def directory; end
 
-  # source://parse_packwerk//lib/parse_packwerk/package.rb#45
-  sig { returns(T::Boolean) }
+  # source://parse_packwerk//lib/parse_packwerk/package.rb#47
+  sig { returns(T.any(::String, T::Boolean)) }
   def enforces_dependencies?; end
 
-  # source://parse_packwerk//lib/parse_packwerk/package.rb#50
-  sig { returns(T::Boolean) }
+  # source://parse_packwerk//lib/parse_packwerk/package.rb#52
+  sig { returns(T.any(::String, T::Boolean)) }
   def enforces_privacy?; end
 
-  # source://parse_packwerk//lib/parse_packwerk/package.rb#40
+  # source://parse_packwerk//lib/parse_packwerk/package.rb#42
   sig { returns(::Pathname) }
   def public_directory; end
 
-  # source://parse_packwerk//lib/parse_packwerk/package.rb#55
+  # source://parse_packwerk//lib/parse_packwerk/package.rb#57
   sig { returns(T::Array[::ParsePackwerk::Violation]) }
   def violations; end
 
-  # source://parse_packwerk//lib/parse_packwerk/package.rb#30
+  # source://parse_packwerk//lib/parse_packwerk/package.rb#32
   sig { returns(::Pathname) }
   def yml; end
 
   class << self
-    # source://parse_packwerk//lib/parse_packwerk/package.rb#15
+    # source://parse_packwerk//lib/parse_packwerk/package.rb#16
     sig { params(pathname: ::Pathname).returns(::ParsePackwerk::Package) }
     def from(pathname); end
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index a34afff..1cd31f7 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -3,6 +3,8 @@
 require 'bundler/setup'
 require 'cork'
 require 'json'
+require 'packs'
+require 'packs/rspec/support'
 
 module DangerHelpers
   # These functions are a subset of https://github.com/danger/danger/blob/master/spec/spec_helper.rb
@@ -59,23 +61,6 @@ def testing_dangerfile
     ParsePackwerk.bust_cache!
     allow(Packwerk::RailsLoadPaths).to receive(:extract_relevant_paths).and_return({})
   end
-
-  config.around do |example|
-    prefix = [File.basename($0), Process.pid].join('-') # rubocop:disable Style/SpecialGlobalVars
-    tmpdir = Dir.mktmpdir(prefix)
-    Dir.chdir(tmpdir) do
-      example.run
-    end
-  ensure
-    FileUtils.rm_rf(tmpdir)
-  end
-end
-
-def write_file(path, content = '')
-  pathname = Pathname.new(path)
-  FileUtils.mkdir_p(pathname.dirname)
-  pathname.write(content)
-  path
 end
 
 def sorbet_double(stubbed_class, attr_map = {})
@@ -85,22 +70,7 @@ def sorbet_double(stubbed_class, attr_map = {})
 end
 
 def write_package_yml(
-  pack_name,
-  dependencies: [],
-  enforce_dependencies: true,
-  enforce_privacy: true,
-  metadata: {},
-  owner: nil
+  pack_name
 )
-  metadata['owner'] = owner if owner
-
-  package = ParsePackwerk::Package.new(
-    name: pack_name,
-    dependencies: dependencies,
-    enforce_dependencies: enforce_dependencies,
-    enforce_privacy: enforce_privacy,
-    metadata: metadata
-  )
-
-  ParsePackwerk.write_package_yml!(package)
+  write_pack(pack_name, { 'enforce_dependencies' => true, 'enforce_privacy' => true })
 end