Check out nostr:nprofile1qqs0awzzutnzfj6cudj03a7txc7qxsrma9ge44yrym6337tkkd23qkgpzemhxue69uhk2er9dchxummnw3ezumrpdejz7qgewaehxw309akxjemgw3hxjmn8wfjkccte9e3k7mf0qy88wumn8ghj7mn0wvhxcmmv9uuxfel8 's blog. He has some interesting ecash ideas
Reading about https://cashu.space/ now.
So mints are LN endpoints like any LN node I presume. Once the BTC (over LN) has arrived at the mint, it is backing then a certain amount of cash tokens.
Payment to people on same mint is fast. To other mints would require cashu -> lightning (BTC on LN) and then LN transaction to the other mint and conversion (once received) to cashu.
Is this a correct understanding? Cashu is just a usecase of LN that pairs LN-BTC as backing to a new token?