If you are developing a creator's tool that requires video and audio editing features, the CE.SDK can be a great solution for your needs.
Integrating Custom Assets The CE.SDK allows you to connect your own assets/API into the platform similar to how the Unsplash integration works. You can find an example asset source implementation of Unsplash in this article.
Implementing Video Editing For video editing, the CE.SDK provides a Video UI Showcase that can be used as a starting point. The showcase comes with full source code, which can be found here.