[rayalez]

There's a great book that can help you - "Start Small, Stay Small". It is exactly for that kind of people, developers looking to create some passive income.

Usually passive income is either content(like udemy videos or books), or apps. Because you don't want to create content - it's probably best to come up with a product idea and develop it.

I think that building MVP product for startups is, first of all, much closer to freelansing than to passive income, and second - if you have skills and resources necessary for building a product - why not build one for yourself? If it will be profitable - you'll start having a real passive income, instead of trading your time for money.

Also, in my opinion, this is way more fun, because you control all the aspects of the product, from idea to execution and selling.