diff --git a/packages/contracts/lib/src/mail/attachable.dart b/packages/contracts/lib/src/mail/attachable.dart
index e69de29..62143dd 100644
--- a/packages/contracts/lib/src/mail/attachable.dart
+++ b/packages/contracts/lib/src/mail/attachable.dart
@@ -0,0 +1,10 @@
+import 'package:your_project/attachment.dart';
+
+// TODO: Check imports
+
+abstract class Attachable {
+  /// Get an attachment instance for this entity.
+  ///
+  /// @return Attachment
+  Attachment toMailAttachment();
+}
diff --git a/packages/contracts/lib/src/mail/factory.dart b/packages/contracts/lib/src/mail/factory.dart
index e69de29..2b07a1f 100644
--- a/packages/contracts/lib/src/mail/factory.dart
+++ b/packages/contracts/lib/src/mail/factory.dart
@@ -0,0 +1,10 @@
+// import statements for required packages
+import 'mailer.dart';
+
+abstract class Factory {
+  /// Get a mailer instance by name.
+  ///
+  /// @param [name] The name of the mailer instance.
+  /// @return An instance of [Mailer].
+  Mailer mailer([String? name]);
+}
diff --git a/packages/contracts/lib/src/mail/mail_queue.dart b/packages/contracts/lib/src/mail/mail_queue.dart
index e69de29..5b08ef3 100644
--- a/packages/contracts/lib/src/mail/mail_queue.dart
+++ b/packages/contracts/lib/src/mail/mail_queue.dart
@@ -0,0 +1,20 @@
+// Import necessary libraries
+import 'dart:async';
+
+/// Represents the MailQueue interface.
+abstract class MailQueue {
+  /// Queues a new e-mail message for sending.
+  ///
+  /// [view] can be a Mailable, String, or List.
+  /// [queue] is the optional queue name.
+  /// Returns a Future representing the queued result.
+  Future<dynamic> queue(dynamic view, {String? queue});
+
+  /// Queues a new e-mail message for sending after [delay].
+  ///
+  /// [delay] can be a Duration, int (in seconds), or DateTime.
+  /// [view] can be a Mailable, String, or List.
+  /// [queue] is the optional queue name.
+  /// Returns a Future representing the queued result.
+  Future<dynamic> later(dynamic delay, dynamic view, {String? queue});
+}
diff --git a/packages/contracts/lib/src/mail/mailable.dart b/packages/contracts/lib/src/mail/mailable.dart
index e69de29..c07851a 100644
--- a/packages/contracts/lib/src/mail/mailable.dart
+++ b/packages/contracts/lib/src/mail/mailable.dart
@@ -0,0 +1,58 @@
+import 'package:some_package/queue.dart'; // Replace with actual queue package
+import 'package:some_package/mail.dart'; // Replace with actual mail package
+
+// TODO: Check Imports.
+
+abstract class Mailable {
+  /// Send the message using the given mailer.
+  ///
+  /// @param  Factory|Mailer  $mailer
+  /// @return SentMessage|null
+  Future<SentMessage?> send(Mailer mailer);
+
+  /// Queue the given message.
+  ///
+  /// @param  Queue  $queue
+  /// @return dynamic
+  Future<dynamic> queue(Queue queue);
+
+  /// Deliver the queued message after (n) seconds.
+  ///
+  /// @param  DateTimeInterface|Duration|int  $delay
+  /// @param  Queue  $queue
+  /// @return dynamic
+  Future<dynamic> later(dynamic delay, Queue queue);
+
+  /// Set the recipients of the message.
+  ///
+  /// @param  dynamic  $address
+  /// @param  String?  $name
+  /// @return self
+  Mailable cc(dynamic address, [String? name]);
+
+  /// Set the recipients of the message.
+  ///
+  /// @param  dynamic  $address
+  /// @param  String?  $name
+  /// @return $this
+  Mailable bcc(dynamic address, [String? name]);
+
+  /// Set the recipients of the message.
+  ///
+  /// @param  dynamic  $address
+  /// @param  String?  $name
+  /// @return $this
+  Mailable to(dynamic address, [String? name]);
+
+  /// Set the locale of the message.
+  ///
+  /// @param  String  $locale
+  /// @return $this
+  Mailable locale(String locale);
+
+  /// Set the name of the mailer that should be used to send the message.
+  ///
+  /// @param  String  $mailer
+  /// @return $this
+  Mailable mailer(String mailer);
+}
diff --git a/packages/contracts/lib/src/mail/mailer.dart b/packages/contracts/lib/src/mail/mailer.dart
index e69de29..5bf90ad 100644
--- a/packages/contracts/lib/src/mail/mailer.dart
+++ b/packages/contracts/lib/src/mail/mailer.dart
@@ -0,0 +1,44 @@
+abstract class Mailer {
+  /// Begin the process of mailing a mailable class instance.
+  ///
+  /// [users] can be of any type.
+  /// Returns a PendingMail instance.
+  PendingMail to(dynamic users);
+
+  /// Begin the process of mailing a mailable class instance.
+  ///
+  /// [users] can be of any type.
+  /// Returns a PendingMail instance.
+  PendingMail bcc(dynamic users);
+
+  /// Send a new message with only a raw text part.
+  ///
+  /// [text] is the raw text message.
+  /// [callback] can be of any type.
+  /// Returns a SentMessage instance or null.
+  SentMessage? raw(String text, dynamic callback);
+
+  /// Send a new message using a view.
+  ///
+  /// [view] can be of type Mailable, String, or List.
+  /// [data] is a map of data to pass to the view.
+  /// [callback] is a function or null.
+  /// Returns a SentMessage instance or null.
+  SentMessage? send(dynamic view, {Map<String, dynamic> data = const {}, dynamic callback});
+
+  /// Send a new message synchronously using a view.
+  ///
+  /// [mailable] can be of type Mailable, String, or List.
+  /// [data] is a map of data to pass to the view.
+  /// [callback] is a function or null.
+  /// Returns a SentMessage instance or null.
+  SentMessage? sendNow(dynamic mailable, {Map<String, dynamic> data = const {}, dynamic callback});
+}
+
+class PendingMail {
+  // Implementation of PendingMail class
+}
+
+class SentMessage {
+  // Implementation of SentMessage class
+}
diff --git a/packages/contracts/lib/src/notifications/dispatcher.dart b/packages/contracts/lib/src/notifications/dispatcher.dart
index e69de29..93ce7f6 100644
--- a/packages/contracts/lib/src/notifications/dispatcher.dart
+++ b/packages/contracts/lib/src/notifications/dispatcher.dart
@@ -0,0 +1,16 @@
+abstract class Dispatcher {
+  /// Send the given notification to the given notifiable entities.
+  ///
+  /// @param  List<dynamic>|dynamic  notifiables
+  /// @param  dynamic  notification
+  /// @return void
+  void send(dynamic notifiables, dynamic notification);
+
+  /// Send the given notification immediately.
+  ///
+  /// @param  List<dynamic>|dynamic  notifiables
+  /// @param  dynamic  notification
+  /// @param  List<String>?  channels
+  /// @return void
+  void sendNow(dynamic notifiables, dynamic notification, List<String>? channels);
+}
diff --git a/packages/contracts/lib/src/notifications/factory.dart b/packages/contracts/lib/src/notifications/factory.dart
index e69de29..69337ea 100644
--- a/packages/contracts/lib/src/notifications/factory.dart
+++ b/packages/contracts/lib/src/notifications/factory.dart
@@ -0,0 +1,30 @@
+// Define the namespace (this would be part of the file structure in Dart)
+//library illuminate.contracts.notifications;
+
+// TODO: Check imports - Check for way to do namespaces
+
+// Import necessary Dart packages
+import 'package:collection/collection.dart';
+
+// Define the Factory interface
+abstract class Factory {
+  /// Get a channel instance by name.
+  ///
+  /// @param  String?  name
+  /// @return dynamic
+  dynamic channel(String? name);
+
+  /// Send the given notification to the given notifiable entities.
+  ///
+  /// @param  dynamic notifiables
+  /// @param  dynamic notification
+  /// @return void
+  void send(dynamic notifiables, dynamic notification);
+
+  /// Send the given notification immediately.
+  ///
+  /// @param  dynamic notifiables
+  /// @param  dynamic notification
+  /// @return void
+  void sendNow(dynamic notifiables, dynamic notification);
+}
diff --git a/packages/contracts/lib/src/pagination/cursor_paginator.dart b/packages/contracts/lib/src/pagination/cursor_paginator.dart
index e69de29..7137152 100644
--- a/packages/contracts/lib/src/pagination/cursor_paginator.dart
+++ b/packages/contracts/lib/src/pagination/cursor_paginator.dart
@@ -0,0 +1,87 @@
+abstract class CursorPaginator<T> {
+  /// Get the URL for a given cursor.
+  ///
+  /// @param  Cursor? cursor
+  /// @return String
+  String url(Cursor? cursor);
+
+  /// Add a set of query string values to the paginator.
+  ///
+  /// @param  List<Object>? key
+  /// @param  String? value
+  /// @return $this
+  CursorPaginator<T> appends(dynamic key, [String? value]);
+
+  /// Get / set the URL fragment to be appended to URLs.
+  ///
+  /// @param  String? fragment
+  /// @return $this|String?
+  dynamic fragment([String? fragment]);
+
+  /// Add all current query string values to the paginator.
+  ///
+  /// @return $this
+  CursorPaginator<T> withQueryString();
+
+  /// Get the URL for the previous page, or null.
+  ///
+  /// @return String?
+  String? previousPageUrl();
+
+  /// The URL for the next page, or null.
+  ///
+  /// @return String?
+  String? nextPageUrl();
+
+  /// Get all of the items being paginated.
+  ///
+  /// @return List<T>
+  List<T> items();
+
+  /// Get the "cursor" of the previous set of items.
+  ///
+  /// @return Cursor?
+  Cursor? previousCursor();
+
+  /// Get the "cursor" of the next set of items.
+  ///
+  /// @return Cursor?
+  Cursor? nextCursor();
+
+  /// Determine how many items are being shown per page.
+  ///
+  /// @return int
+  int perPage();
+
+  /// Get the current cursor being paginated.
+  ///
+  /// @return Cursor?
+  Cursor? cursor();
+
+  /// Determine if there are enough items to split into multiple pages.
+  ///
+  /// @return bool
+  bool hasPages();
+
+  /// Get the base path for paginator generated URLs.
+  ///
+  /// @return String?
+  String? path();
+
+  /// Determine if the list of items is empty or not.
+  ///
+  /// @return bool
+  bool isEmpty();
+
+  /// Determine if the list of items is not empty.
+  ///
+  /// @return bool
+  bool isNotEmpty();
+
+  /// Render the paginator using a given view.
+  ///
+  /// @param  String? view
+  /// @param  Map<String, dynamic> data
+  /// @return String
+  String render([String? view, Map<String, dynamic> data = const {}]);
+}
diff --git a/packages/contracts/lib/src/pagination/length_aware_paginator.dart b/packages/contracts/lib/src/pagination/length_aware_paginator.dart
index e69de29..b5de7de 100644
--- a/packages/contracts/lib/src/pagination/length_aware_paginator.dart
+++ b/packages/contracts/lib/src/pagination/length_aware_paginator.dart
@@ -0,0 +1,20 @@
+import 'paginator.dart';
+
+abstract class LengthAwarePaginator extends Paginator {
+  /// Create a range of pagination URLs.
+  ///
+  /// @param  int  start
+  /// @param  int  end
+  /// @return List<String>
+  List<String> getUrlRange(int start, int end);
+
+  /// Determine the total number of items in the data store.
+  ///
+  /// @return int
+  int total();
+
+  /// Get the page number of the last available page.
+  ///
+  /// @return int
+  int lastPage();
+}
diff --git a/packages/contracts/lib/src/pagination/paginator.dart b/packages/contracts/lib/src/pagination/paginator.dart
index e69de29..01655f5 100644
--- a/packages/contracts/lib/src/pagination/paginator.dart
+++ b/packages/contracts/lib/src/pagination/paginator.dart
@@ -0,0 +1,87 @@
+abstract class Paginator {
+  /// Get the URL for a given page.
+  ///
+  /// @param  int  $page
+  /// @return string
+  String url(int page);
+
+  /// Add a set of query string values to the paginator.
+  ///
+  /// @param  array|string|null  $key
+  /// @param  string|null  $value
+  /// @return $this
+  Paginator appends(dynamic key, [String? value]);
+
+  /// Get / set the URL fragment to be appended to URLs.
+  ///
+  /// @param  string|null  $fragment
+  /// @return $this|string|null
+  dynamic fragment([String? fragment]);
+
+  /// The URL for the next page, or null.
+  ///
+  /// @return string|null
+  String? nextPageUrl();
+
+  /// Get the URL for the previous page, or null.
+  ///
+  /// @return string|null
+  String? previousPageUrl();
+
+  /// Get all of the items being paginated.
+  ///
+  /// @return array
+  List<dynamic> items();
+
+  /// Get the "index" of the first item being paginated.
+  ///
+  /// @return int|null
+  int? firstItem();
+
+  /// Get the "index" of the last item being paginated.
+  ///
+  /// @return int|null
+  int? lastItem();
+
+  /// Determine how many items are being shown per page.
+  ///
+  /// @return int
+  int perPage();
+
+  /// Determine the current page being paginated.
+  ///
+  /// @return int
+  int currentPage();
+
+  /// Determine if there are enough items to split into multiple pages.
+  ///
+  /// @return bool
+  bool hasPages();
+
+  /// Determine if there are more items in the data store.
+  ///
+  /// @return bool
+  bool hasMorePages();
+
+  /// Get the base path for paginator generated URLs.
+  ///
+  /// @return string|null
+  String? path();
+
+  /// Determine if the list of items is empty or not.
+  ///
+  /// @return bool
+  bool isEmpty();
+
+  /// Determine if the list of items is not empty.
+  ///
+  /// @return bool
+  bool isNotEmpty();
+
+  /// Render the paginator using a given view.
+  ///
+  /// @param  string|null  $view
+  /// @param  array  $data
+  /// @return string
+  String render([String? view, Map<String, dynamic> data = const {}]);
+}
diff --git a/packages/contracts/lib/src/pipeline/hub.dart b/packages/contracts/lib/src/pipeline/hub.dart
index e69de29..36b5148 100644
--- a/packages/contracts/lib/src/pipeline/hub.dart
+++ b/packages/contracts/lib/src/pipeline/hub.dart
@@ -0,0 +1,10 @@
+// Define a Dart interface for Hub
+
+abstract class Hub {
+  /// Send an object through one of the available pipelines.
+  ///
+  /// @param object The object to be piped.
+  /// @param pipeline The name of the pipeline, or null to use the default.
+  /// @return The processed object.
+  dynamic pipe(dynamic object, [String? pipeline]);
+}
diff --git a/packages/contracts/lib/src/pipeline/pipeline.dart b/packages/contracts/lib/src/pipeline/pipeline.dart
index e69de29..7991d3d 100644
--- a/packages/contracts/lib/src/pipeline/pipeline.dart
+++ b/packages/contracts/lib/src/pipeline/pipeline.dart
@@ -0,0 +1,15 @@
+import 'dart:async';
+
+abstract class Pipeline {
+  /// Set the traveler object being sent on the pipeline.
+  Pipeline send(dynamic traveler);
+
+  /// Set the stops of the pipeline.
+  Pipeline through(dynamic stops);
+
+  /// Set the method to call on the stops.
+  Pipeline via(String method);
+
+  /// Run the pipeline with a final destination callback.
+  FutureOr<dynamic> then(FutureOr<dynamic> Function() destination);
+}
diff --git a/packages/contracts/lib/src/process/invoked_process.dart b/packages/contracts/lib/src/process/invoked_process.dart
index e69de29..65edfbc 100644
--- a/packages/contracts/lib/src/process/invoked_process.dart
+++ b/packages/contracts/lib/src/process/invoked_process.dart
@@ -0,0 +1,42 @@
+import 'process_result.dart';
+abstract class InvokedProcess {
+  /// Get the process ID if the process is still running.
+  /// 
+  /// Returns an integer or null.
+  int? id();
+
+  /// Send a signal to the process.
+  /// 
+  /// Takes an integer [signal] and returns the current instance.
+  InvokedProcess signal(int signal);
+
+  /// Determine if the process is still running.
+  /// 
+  /// Returns a boolean.
+  bool running();
+
+  /// Get the standard output for the process.
+  /// 
+  /// Returns a string.
+  String output();
+
+  /// Get the error output for the process.
+  /// 
+  /// Returns a string.
+  String errorOutput();
+
+  /// Get the latest standard output for the process.
+  /// 
+  /// Returns a string.
+  String latestOutput();
+
+  /// Get the latest error output for the process.
+  /// 
+  /// Returns a string.
+  String latestErrorOutput();
+
+  /// Wait for the process to finish.
+  /// 
+  /// Takes an optional [output] callback and returns a ProcessResult instance.
+  Future<ProcessResult> wait([Future<void> Function()? output]);
+}
diff --git a/packages/contracts/lib/src/process/process_result.dart b/packages/contracts/lib/src/process/process_result.dart
index e69de29..82cd974 100644
--- a/packages/contracts/lib/src/process/process_result.dart
+++ b/packages/contracts/lib/src/process/process_result.dart
@@ -0,0 +1,56 @@
+abstract class ProcessResult {
+  /// Get the original command executed by the process.
+  ///
+  /// @return String
+  String command();
+
+  /// Determine if the process was successful.
+  ///
+  /// @return bool
+  bool successful();
+
+  /// Determine if the process failed.
+  ///
+  /// @return bool
+  bool failed();
+
+  /// Get the exit code of the process.
+  ///
+  /// @return int|null
+  int? exitCode();
+
+  /// Get the standard output of the process.
+  ///
+  /// @return String
+  String output();
+
+  /// Determine if the output contains the given string.
+  ///
+  /// @param String output
+  /// @return bool
+  bool seeInOutput(String output);
+
+  /// Get the error output of the process.
+  ///
+  /// @return String
+  String errorOutput();
+
+  /// Determine if the error output contains the given string.
+  ///
+  /// @param String output
+  /// @return bool
+  bool seeInErrorOutput(String output);
+
+  /// Throw an exception if the process failed.
+  ///
+  /// @param Function? callback
+  /// @return ProcessResult
+  ProcessResult throwException([Function? callback]);
+
+  /// Throw an exception if the process failed and the given condition is true.
+  ///
+  /// @param bool condition
+  /// @param Function? callback
+  /// @return ProcessResult
+  ProcessResult throwIf(bool condition, [Function? callback]);
+}