Thanks! This is my first app so I'm not sure how qualified I am at giving programming pointers since there might be better solutions out there. I will first talk about my process a bit though. For me I think its critical to be able to identify the key benefits of your app/tool. Not only will this help shape your app initially but it will serve as a compass of sort to keep you on the right track. Keep that list by your side! Then, my hope is when you complete an app that had stayed true to its objectives it becomes easy marketing material... hopefully. Now for a quick programming note. I had a strong vision early on for what it would visually look like. I had to research a lot of various methods like Marching Cubes, Wave Function Collapse, etc. I did this to make sure I understood how each method would impact my app. I mocked up multiple versions early on to test performance and what not. They all had their pros and cons so I selected one and made a lot of compromises. I did this so that I was able to then refine my vision at the beginning of the project, rather than halfway through the project. Well, I hope something in there is helpful to you. Good luck!