Thanks! Any recommendations on which federations to join to try this out? I'm sensing some confusion in myself (others too?) regarding ecash. Per their respective protocol descriptions, both Cashu and Fedimint are Chaumian ecash protocols. They are not, however, interoperable, and their mints work in different ways. Fedimint relies on a federation model; Cashu does not.

https://fedimint.org/docs/GettingStarted/TechCompontents

https://cashu.space/