nostr:npub1m6yz8nwf0xl5cafjy0kurxn6hs67eleft8h4pj57n4tn4s8c8lgqd2mzj9 gave me a walkthrough of the fedimint module interface at bitcoin++. really neat. The tldr is that you can have the federation run a module that vends ${whatever} in exchange for ecash.

Having a mint be a small closed market for different services that you pay for with that market's ecash is a really interesting model.

For example, you could make a cloud services market where you have a module for object storage, a module for serverless compute, a module for some SaaS service, etc. The modules/backing services could be made by different companies or teams, and then they delegate account management and last-mile billing to the mint (because its just bitcoin in, bitcoin out).

I'm pretty skeptical ecash for mass-adoption end user payments, but I think ecash for a pluggable platforms of related services makes a ton of sense.