IntroductionGetting startedCopy MarkdownOpenWhat is Pitter Patter? Rich text editing @pitter-patter/shuffle: A 12-column, grid-based drag and drop library. What is Pitter Patter?Pitter Patter is an open source collaborative rich text editing toolkit, built with React and ProseMirror.OverviewA ProseMirror plugin that supports smooth, beautiful, grid-based reordering, auto-grouping, repositioning, and resizing.