Great stuff! I wonder if it's possible to make it available as a web app? It would be even cooler if no app install is required, just send the link to a receiver via text message.
i'm using it from time to time, for quick share of small files, and it always works great
And when I have larger content that needs to be shared, Signal's "Note to Self" works across platforms also. (It's the only reason I have Signal installed since I don't use it for communications)