Tong Chen, a Data Engineer Intern at dltHub, explains a method for training ChatGPT using the open-source dlt repository, demonstrating this process with the help of Langchain and Deeplake services. By setting up accounts on these platforms and utilizing their cost-effective options, users can train a chat-oriented GPT model to provide personalized answers regarding the dlt library. The walkthrough involves installing necessary modules, cloning dlt repositories, and processing the data with Langchain's tools to create a dataset in Deeplake. The trained model can answer questions about dlt's integration with workflow managers and its accessibility for various data team members, showcasing its potential for collaborative and customizable data handling. The article concludes by encouraging readers to explore the process further with a Colab demo and engage with the dlt community for additional support and discussion.