Has anyone messed around with using the nostr:npub126ntw5mnermmj0znhjhgdk8lh2af72sm8qfzq48umdlnhaj9kuns3le9ll webtop version of Sparrow Wallet and have any input on how to get around the lack of USB device support for exporting, signing and importing PSBT’s and final signed TX files?

On the file system browser in KasmVNC (Start9 webtop) I can’t even navigate to a sparrow directory. Conversely, I can’t find PSBT’s that I’ve saved through Sparrow on Start9 anywhere on the file system.