I started developing this project on May 11, 2025. My goal was to build a 3D modeling web app with capabilities similar to Blender. A few weeks ago, I implemented AI-generated textures for 3D models. The feature received a mix of positive and negative reactions from the developer community. Today, I got my first paying customer. I'm really excited, even though they only spent $5. After API costs, my profit margin was only about $1. That $1, earned after a year of work, is the most meaningf...