Tried it. But didn't understand anything of what happened.
I got a npub.cash address, then I sent it 21 sats.
I was expecting a DM to claim the tokens but nothing happened. Was confused.
Checked the payments details and saw that the payment had in fact been sent to my minibits.cash adress which I had previously linked to my nostr npub...🤔
Checked my minibits wallet and bam... ! the 21 sats were there.
Conclusion: cool but confusing as fuck lol