There isn't any focused app for now, but you could be able to setup a website shortcut being a progressive Net app in a few browsers. NotebookLM can’t delete or edit your first data files. It's important to manually re-add any local file, or use the Click to Sync with https://traffup.net/iframetest/?ID=d7be8ce1240fe993d2d4151a0c7bf402