Curious, how do they handle tipping bartenders when paying via lightning?
This week I spent some SATS, it felt good⚡️
nostr:npub1key55ax33gkl50uqemvl4khrtqrhzm7wzpc7fhseutt5ddkcwcrqgxlt3h 🤙 
Discussion
Tips are calculated before the invoice is generated. This eliminates the need to perform a second transaction.