PSA: as long as you're not using a Cashu wallet that can be restored from a seed phrase (currently: Nutshell-py, Nutstash Alpha, soon: all of them), things could go wrong and you could lose ecash due to some weird bug. Please treat it with care and only use small amounts. I'm very serious about this. I don't hold more than a few dollars worth of ecash myself in non-deterministic (seedless) wallets.

BUT HERE IS THE GOOD NEWS:

Determinisitc wallets are so much safer. Even if something goes wrong, you can just revert time and restore your entire balance.