Anatomy of my SaaS - I wrote 0 lines of code

About a month ago, I launched ScheduleAI.app, practically my first SaaS. What does this do? * You set an AI prompt * You pick a time * The prompt is executed at that time, everyday * Result is sent to your email How it's setup? * Codebase: React, ShadCN UI, Cron jobs * Database: Potsgres * Auth: Magic link, Gmail SMTP * Hosting: Replit * AI: Perplexity * Analytics: Google analytics * Payment: Stripe Cost? * Hosting cost: $20/m * Domain: $14/y * AI: $5/M * Development: Replit AI agent, $0 + ChatGPT $20/m * Logo and theme: $0 Marketing? * My clients/contacts * Social media: Reddit, Twitter, Facebook Groups * Product Hunt, Hacker News * AI listing websites * AI newsletters Development? * Time: 4 weeks, MVP is built in 2-3 days. Challenges? * Optimizing Cron jobs so that it's not billing for every second * Figuring out perplexity API to provide expected result * Authentication, email and password based login is difficult to maintain, magic link is easy * Email deliveribility, fixing going into spam