I have just completed the transfer of another app from Replit to Antigravity. That was the easy part and the necessary files were automatically built and changed. The deployment to Firebase hosting was where I hit a big wall. Despite using a couple of models, I hit my credit limit. This morning though the breakthrough finally occurred and the site is now live. I will look at pointing to my domain next.
The main point here is that as a non-coder watching Antigravity work was absolutely fascinating. The skill of professionals must be deep and take years to learn to reach that standard. The great thing is I can look forward to Antigravity just getting better and better. I can focus on ideas and UIs rather than the technical backend coding.