https://g.mirror.xyz/FNo46PS21mjaAVLu-Nt1HeJT_yH-8lnm0W-HsjG6px8 https://g.mirror.xyz/FNo46PS21mjaAVLu-Nt1HeJT_yH-8lnm0W-HsjG6px8In any case, for Mirror, we do store the private key in the browser for signing entry (we call it a "signing key"), but it's not an Ethereum key that we store. The private key we store is a non-exportable type that can never be shared and cannot hold economic value. In the future, adding new devices will be quite easy to do, simply by creating a new signing key...