[fsloth]

The marketing part is potentially quite challenging. As well as finding a niche market that is underserved.

patio11 is famous because what he did was really non-trivial even though he is such a humble person he discusses his work in very homely terms.

[SoftTalker]

Right, didn't intend to understate the achievement. Mostly emphasizing that the product idea does not have to be complicated or original. Success is overwhelmingly about it filling a need for the target market, execution, and professionalism.