Passive income: NO

Starting a Custom RAG System Development Service can potentially lead to passive income, but it is not guaranteed for most individuals. To reach a passive income level, one would need to invest in setting up efficient systems like automated client communication, project management tools, and potentially hiring freelancers for development work. While some individuals have shared success stories of earning passively from this service on platforms like Reddit, it tends to be more common for a few outliers rather than the majority. Achieving passive income in this niche usually requires a significant initial time and financial investment to streamline operations. It is realistic for those willing to put in the effort to set up the necessary systems and processes, but it may not be achievable for everyone. It's essential to be aware of the potential myths or unrealistic expectations around quickly earning passive income without significant groundwork.