Passive income: NO

Earning passive income from an AI Sustainable Shopping Recommendation Engine side hustle is possible, but it requires significant setup and ongoing maintenance to reach that level. Initial costs range from $300 to $500 for hosting and development. Setting up automation tools and algorithms is crucial for the engine to operate passively. Most people do not achieve full passive income from this hustle, as it involves continuous updates and monitoring. Outliers who have dedicated time and resources to optimize their recommendation engine may see passive income. Misleading expectations often involve underestimating the complexity and ongoing work needed. Realistically, passive income is more likely for individuals with advanced technical skills and a strong commitment to maintaining the system.