[D] Data scientists who made a passive income, what did you do?

Data scientists and ML people who have successfully set up a source of passive income in addition to your regular 9-5 job: How and what did you do? I'm really curious about the different ways professionals in our field are leveraging their skills to generate extra earnings.

Whether it's a simple ML application, a microservice, a unique service offering, freelance projects, or any other method, I'd love to hear your stories. How did you come up with your idea? How …

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