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> The signer key will always be the key of the user who controls the signer device.
これは何でも良さそう
https://github.com/nostr-protocol/nips/blob/master/46.md
> The client always starts by generating a random key which is used to communicate with the signer
セッションごと？
> The signer key will always be the key of the user who controls the signer device.
これは何でも良さそう
ユーザーの pubkey か、ユーザーごとの署名者の pubkey