What feature did Fiverr popularize that requires freelancers to advertise standardized service menus?

Answer

Offering pre-packaged services, initially known as 'Gigs'

Fiverr popularized a model based on freelancers creating clear, pre-packaged service offerings—known as 'Gigs'—where the client purchases a defined service rather than responding to a job description.

What feature did Fiverr popularize that requires freelancers to advertise standardized service menus?
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