The New York Stock Exchange started out as a coffee house.
homegrown
(adjective) grown or originating in a particular place; “stands selling homegrown fruits and vegetables”
Source: WordNet® 3.1
homegrown
Grown at home.
Created or constructed in an informal or amateur manner; done without formal assistance, as from a business, organization, or professional.
Raised or brought up in one's own country.
Originating in one's own country.
Source: Wiktionary
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
The New York Stock Exchange started out as a coffee house.