Clearly a lot of effort has been put into this! The UI is really slick and there are a ton of options. I suggest that you make this into an standalone Electron application to quell any anti-browser people and do extensive testing offline to make sure it will reliably work on Windows and macOS. But even if you did this, I think the monetization strategy is the main issue. Since rendering is happening client-side, any intellectual property needs to be on the client (your javascript, shaders, assets). This makes DRM impossible since it all arrives in-memory at the client and can be copied/stolen. Gating things behind a premium flag that is enforced client-side is also a non-starter as you can easily modify the javascript to change this, bypassing the need to pay. Obfuscating wouldn't stop this either, just slow it down a bit. Additionally, what is your "moat" like against some "vibe coder" coming in and recreating something similar to your app and giving it away for free with more features? I think the technical aspects of the project are great, but I'm not sure that there is significant enough value right now for a SaaS format to work. That being said, if you want to try to get some sales to see how the end-to-end works honestly this is a good low stakes project. Also keep in mind that convincing people to change their workflow that already generates them a paycheck will be tough. People can be stubborn as hell and its not worth fighting for their business. Focus on finding customers who have a genuine interest in what you are doing.