A couple years ago I decided to stop maintaining a .vimrc (after ~35 years), and started using LunarVim and later AstroVim with as few customizations as I could live with.

But then around 2 months ago I decided to switch to NixOS and there wasn't a Nix way I could find to use Astro. So I had Opus build me a vim setup for NixOS that included the batteries I wanted in my setup. I gave it a paragraph description and it built something that has been a joy to use.