Saturday was record store day, a day meant to drive people to the independent stores where records are sold and recommended around the country. But this is a story about the places where records are made.A new vinyl pressing plant is set to open in the Phillips neighborhood of South Minneapolis this year. It’s called Outta Wax. Sara Pette and Alex Stillman are two of its three founders. They joined MPR News host Nina Moini to talk about the impact of the vinyl boom on independent artists and how they are bringing their connections in the DIY music scene into plastic manufacturing.