The technology stack we use is next.js + TypeScript + stable diffusion.
Regarding the number of generated images, whether specified or random, it's always one due to the expensive GPU computing power. If we find a sustainable pattern, the number of generated images will definitely increase.
As for all examples being girls, it's a sad story... because when I first launched, all generated images were publicly visible, but some netizens kept generating NSFW images, resulting in most of the images on the homepage being NSFW. So, yesterday, I temporarily filtered out some images to display.