To build a version of Product Hunt using Bubble without writing code, start by registering for a free account and completing introductory lessons to familiarize yourself with Bubble's features. Then, design your platform's user interface using Bubble's visual design tool, and create the necessary database fields to store product information. Next, use workflows to send data between pages and build core features such as posting new products, displaying products in a feed by launch date, upvoting products, commenting on products, and following users. With these features in place, you can display user profiles and additional features like notifications and product collections. Additionally, consider purchasing templates or hiring a developer to help with the building process, which can be completed without any additional costs.