diff --git a/lib/src/element_type.dart b/lib/src/element_type.dart
index cd9fcb3778..0cf0284145 100644
--- a/lib/src/element_type.dart
+++ b/lib/src/element_type.dart
@@ -20,7 +20,7 @@ import 'package:meta/meta.dart';
 
 /// Base class representing a type in Dartdoc.  It wraps a [DartType], and
 /// may link to a [ModelElement].
-abstract class ElementType with CommentReferable, Nameable implements Privacy {
+abstract class ElementType with CommentReferable, Nameable {
   final DartType type;
   @override
   final PackageGraph packageGraph;
diff --git a/lib/src/generator/templates.runtime_renderers.dart b/lib/src/generator/templates.runtime_renderers.dart
index 9b87726414..cec79065b8 100644
--- a/lib/src/generator/templates.runtime_renderers.dart
+++ b/lib/src/generator/templates.runtime_renderers.dart
@@ -16301,7 +16301,6 @@ const _invisibleGetters = {
     'allHrefs',
     'allImplementersAdded',
     'allInheritableElements',
-    'allLibraries',
     'allLibrariesAdded',
     'analysisContext',
     'breadcrumbName',
diff --git a/lib/src/model/annotation.dart b/lib/src/model/annotation.dart
index 672ba8d338..d239fc2f7a 100644
--- a/lib/src/model/annotation.dart
+++ b/lib/src/model/annotation.dart
@@ -55,7 +55,6 @@ final class Annotation extends Attribute {
         'non-callable element used as annotation?: ${_annotation.element}')
   };
 
-  @override
   bool get isPublic {
     final modelType = _modelType;
     if (!modelType.isPublic) {
diff --git a/lib/src/model/attribute.dart b/lib/src/model/attribute.dart
index 355f989b89..afc7488a0f 100644
--- a/lib/src/model/attribute.dart
+++ b/lib/src/model/attribute.dart
@@ -3,7 +3,6 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'package:collection/collection.dart';
-import 'package:dartdoc/src/model/privacy.dart';
 import 'package:meta/meta.dart';
 
 int byAttributeOrdering(Attribute a, Attribute b) {
@@ -16,7 +15,7 @@ int byAttributeOrdering(Attribute a, Attribute b) {
 ///
 /// These include both explicit annotations in code (e.g. `deprecated`) as well
 /// as others added by the documentation system (e.g. 'no setter').
-abstract class Attribute implements Privacy {
+abstract class Attribute {
   // A name, only used for sorting.
   @visibleForOverriding
   final String name;
@@ -57,9 +56,6 @@ abstract class Attribute implements Privacy {
 final class _BuiltInAttribute extends Attribute {
   const _BuiltInAttribute(super.name, super.sortGroup);
 
-  @override
-  bool get isPublic => false;
-
   @override
   String get linkedName => name;
 
diff --git a/lib/src/model/documentation.dart b/lib/src/model/documentation.dart
index c11045f8e4..89adebfd8e 100644
--- a/lib/src/model/documentation.dart
+++ b/lib/src/model/documentation.dart
@@ -37,7 +37,12 @@ class Documentation {
       // situation where one public getter might set both fields, but might only
       // set one. We have this awkward check to make sure we set both fields if
       // we'll need both fields.
-      assert(_element.isCanonical);
+      assert(
+        _element.isCanonical,
+        "generating docs for non-canonical element: '$_element' "
+        "('${_element.runtimeType}', ${_element.hashCode}), representing "
+        "'${_element.element}'",
+      );
       return _asHtml;
     }
 
diff --git a/lib/src/model/model.dart b/lib/src/model/model.dart
index 07a8f83b94..966253a0f2 100644
--- a/lib/src/model/model.dart
+++ b/lib/src/model/model.dart
@@ -39,7 +39,6 @@ export 'package.dart';
 export 'package_builder.dart';
 export 'package_graph.dart';
 export 'parameter.dart';
-export 'privacy.dart';
 export 'source_code_mixin.dart';
 export 'top_level_container.dart';
 export 'top_level_variable.dart';
diff --git a/lib/src/model/model_element.dart b/lib/src/model/model_element.dart
index 20b37f7894..6a15eccbc6 100644
--- a/lib/src/model/model_element.dart
+++ b/lib/src/model/model_element.dart
@@ -69,7 +69,7 @@ abstract class ModelElement
         Indexable,
         FeatureSet,
         DocumentationComment
-    implements Comparable<ModelElement>, Documentable, Privacy {
+    implements Comparable<ModelElement>, Documentable {
   // TODO(jcollins-g): This really wants a "member that has a type" class.
   final Member? _originalMember;
   final Library _library;
diff --git a/lib/src/model/nameable.dart b/lib/src/model/nameable.dart
index 24b7c4c1da..1f8d852f1b 100644
--- a/lib/src/model/nameable.dart
+++ b/lib/src/model/nameable.dart
@@ -11,10 +11,9 @@ import 'package:dartdoc/src/model/container.dart';
 import 'package:dartdoc/src/model/library.dart';
 import 'package:dartdoc/src/model/model_element.dart';
 import 'package:dartdoc/src/model/package_graph.dart';
-import 'package:dartdoc/src/model/privacy.dart';
 
 /// Something that has a name.
-mixin Nameable implements Privacy {
+mixin Nameable {
   String get name;
 
   /// A qualified name, mostly for use in the web search functionality, and for
@@ -27,7 +26,16 @@ mixin Nameable implements Privacy {
   /// The name to use in breadcrumbs in the rendered documentation.
   String get breadcrumbName => name;
 
-  @override
+  /// Whether this is "package-public."
+  ///
+  /// A "package-public" element satisfies the following requirements:
+  /// * is not documented with the `@nodoc` directive,
+  /// * for a library, is found in a package's top-level 'lib' directory, and
+  ///   not found in it's 'lib/src' directory,
+  /// * for a library member, is in a _public_ library's exported namespace, and
+  ///   is not privately named, nor an unnamed extension,
+  /// * for a container (class, enum, extension, extension type, mixin) member,
+  ///   is in a _public_ container, and is not privately named.
   bool get isPublic => name.isNotEmpty && !name.startsWith('_');
 
   @override
diff --git a/lib/src/model/package.dart b/lib/src/model/package.dart
index fa39338da3..b7074e5ad6 100644
--- a/lib/src/model/package.dart
+++ b/lib/src/model/package.dart
@@ -29,8 +29,7 @@ const String htmlBasePlaceholder = r'%%__HTMLBASE_dartdoc_internal__%%';
 /// A [LibraryContainer] that contains [Library] objects related to a particular
 /// package.
 class Package extends LibraryContainer
-    with Nameable, Locatable, Warnable, CommentReferable
-    implements Privacy {
+    with Nameable, Locatable, Warnable, CommentReferable {
   @override
   final String name;
 
diff --git a/lib/src/model/privacy.dart b/lib/src/model/privacy.dart
deleted file mode 100644
index ca5ae680a7..0000000000
--- a/lib/src/model/privacy.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/// Classes implementing this have a package-public/private distinction.
-abstract interface class Privacy {
-  /// Whether this is "package-public."
-  ///
-  /// A "package-public" element satisfies the following requirements:
-  /// * is not documented with the `@nodoc` directive,
-  /// * for a library, is found in a package's top-level 'lib' directory, and
-  ///   not found in it's 'lib/src' directory,
-  /// * for a library member, is in a _public_ library's exported namespace, and
-  ///   is not privately named, nor an unnamed extension,
-  /// * for a container (class, enum, extension, extension type, mixin) member,
-  ///   is in a _public_ container, and is not privately named.
-  bool get isPublic;
-}
diff --git a/lib/src/model_utils.dart b/lib/src/model_utils.dart
index 23f6ffd98b..10a617884b 100644
--- a/lib/src/model_utils.dart
+++ b/lib/src/model_utils.dart
@@ -95,6 +95,6 @@ extension IterableOfDocumentableExtension<E extends Documentable>
   Iterable<E> get whereDocumented => where((e) => e.isDocumented).wherePublic;
 }
 
-extension IterableOfNameableExtension<E extends Privacy> on Iterable<E> {
+extension IterableOfNameableExtension<E extends Nameable> on Iterable<E> {
   Iterable<E> get wherePublic => where((e) => e.isPublic);
 }