Adding content to 107-package-manager

src/roadmaps/flutter/content/107-package-manager/100-pub-dev.md

@@ -1,6 +1,6 @@
 # Pub dev
 
-Flutter supports using shared packages contributed by other developers to the Flutter and Dart ecosystems.
+`pub.dev` is the official package repository for Dart and Flutter packages. It is a platform for hosting, managing, and distributing Dart packages and Flutter plugins. Developers can use `pub.dev` to search for packages, find information about packages, and install packages in their Flutter projects.
 
 Visit the following resources to learn more:
 

src/roadmaps/flutter/content/107-package-manager/101-flutter-pub-dart-pub.md

@@ -1 +1,19 @@
-# Flutter pub dart pub
+# Flutter pub dart pub
+
+`pub` is the package manager for Dart and Flutter, used for managing dependencies and publishing packages.
+
+With `pub`, developers can:
+
+- Search for and download packages from the `pub.dev` repository.
+- Manage dependencies in their projects, including adding, updating, and removing packages.
+- Publish their own packages to `pub.dev` for others to use.
+
+`pub` uses a `pubspec.yaml` file in each project to manage dependencies and define the package metadata. This file includes information such as the package name, version, and dependencies.
+
+In Flutter projects, `pub` is used to manage both Dart packages and Flutter plugins. This makes it easy to find and use packages that extend the functionality of your Flutter application.
+
+`pub` is an essential tool for Dart and Flutter development, providing a centralized repository for packages, making it easier to find, install, and manage dependencies in your projects.
+
+Learn more from the following links:
+
+- [Overview of Dart pub](https://dart.dev/tools/pub/cmd)

src/roadmaps/flutter/content/107-package-manager/index.md

@@ -5,3 +5,4 @@ The package manager for Flutter is called pub. It is used to manage Flutter proj
 Visit the following resources to learn more:
 
 - [Packages and Plugins](https://docs.flutter.dev/development/packages-and-plugins)
+- [Dart Package Manager (pub.dev) in Flutter](https://www.youtube.com/watch?v=F1VRO0_MKLs)