Show HN: KissMotion – AI kiss video generator from a single photo

Hi HN,

  I built KissMotion (https://aikissvideo.app) - an AI kiss video       
  generator that creates romantic animations from photos.               
                                                                        
  Tech stack:                                                           
  - Next.js 15 with App Router                                          
  - Multiple AI providers (Replicate, Kling, FAL)                       
  - Drizzle ORM with credit-based FIFO consumption                      
  - Multi-deployment: Vercel + Cloudflare Workers (via OpenNext)        
  - i18n with 16 languages                                              
                                                                        
  The trickiest part was handling async AI generation with reliable     
  polling and automatic credit refunds when tasks fail.                 
                                                                        
  Looking for feedback on generation quality and UX improvements.