In the next update, I will start saving these backup files in chunks on its database. This way, even if you have very low-spec devices, it will still work, and you will not run out of RAM. 

Remember, everything is happening locally; there are no external servers, except for your relays. nostr:note14yldqq66g8y3jll75jhpyw3vyrkr7ch75ls8hzjtcgeltlxj5ptqwhkwlx