Yes, super important point. That is why I added a FAQ page. For now this is a "custodial" or "non-trustless" app, since it is the easier way to launch an MVP. If it gets traction, my hope is to "verify" charities one by one and onboard them to Bitcoin LN via this app, so they have their own wallet and somehow I can work with a kind of "escrow".

For now I will post on twitter all the transaction receipts. But if people have better ideas, I am super open to hearing.

Thanks!