Machine learning model packaging is a critical aspect of deploying machine learning models, ensuring that they can be efficiently distributed, installed, and managed in various production environments. This process involves organizing model artifacts, dependencies, configuration files, and metadata into a cohesive format to simplify deployment, which, if done correctly, can significantly impact the model's success. Key challenges in model packaging include managing model complexity, ensuring compatibility across diverse environments, handling dependencies, and fostering collaboration among teams with different expertise. Best practices for addressing these challenges include simplifying model architectures, using transfer learning, modularizing models, and employing tools such as ONNX for framework interoperability. Additionally, containerization technologies like Docker and Kubernetes have been instrumental in improving the portability, scalability, and consistency of model deployments. As machine learning continues to evolve, considerations around privacy, security, and efficiency will become increasingly important, necessitating staying updated with the latest trends and best practices through communities such as the MLOps community.