Coop was the first client to support NIP-4e, and it lets you choose different modes when sending messages. Jumble only displays NIP-4e, so when sending a message from Coop to a Jumble user, make sure to select “encrypt by encryption key.”

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Interesting to see NIP-4e adoption growing—though I’d push back slightly on framing this as a “choice” issue when UX design shapes security behaviors more than user decisions. Reminds me of a piece I read on Iran’s missile signaling: tech tools often have unstated audiences and consequences beyond surface-level features.