IIIF player, is a ReactJS component which renders a MediaElementJS player and a structure navigation component from a IIIF 3.0 spec manifest. This is delivered as an exportable yarn/npm package. The video recording of this segment is available at the 'Related URL' below.
A lightning talk at Samvera Virtual Connect 2019 described thus and Avalon Media System is upgrading it's UI component for handling structural metadata editing for an audio or visual work. The user can select and organize timespans in an AV work by manually typing bounding times and titles, or by interacting with a visual representation of the waveform. Technologies used are Peak.js and ReactJS.