Mayor Zohran Mamdani makes an announcement inside The Brooklyn Bank at 896 DeKalb Avenue in Brooklyn, New York. Paul Martinka for NY Post

New Yorkers, you’ve been slacking — so the mayor wants to organize you.

Mayor Zohran Mamdani isn’t happy that only 400 people showed up to last year’s Rent Guidelines Board hearings.

In response, last Wednesday, he launched Organize NYC , a supposed volunteer effort to have New Yorkers participate in local government.

Taken straight from the Democratic Socialists of America’s community-organizing playbook, Mamdani is calling it “a long-term initiative to bring mass public participation into the work of governing.”

First stop: the RGB.…