nostr:npub1uq70uqgas9pyhds2zt57kr9se8rg3s68ztphjnq82ts8rzeknmeql7u0c2 has made the nostr:npub1su3v8ppushwav932tj6sdcwtf44tpjhmjesrfapxu4dza7y6x30q3lcngd protocol very attractive for communities to use.
“Multispend” chat groups can be used to do many things. It’s definitely worth exploring.
Here is an explanation of “Who are the federations” from the Fedimint website.
https://fedimint.org/docs/GettingStarted/Who-are-the-fms nostr:note15zr6rkkl47gdz9f5r0etnu5qrxsmja2hhnpk02089z0ntqkvkvqqj85dp0