rich1.0BTCsessions (npub1rx…vhnp8)https://nostr.ae/npub1rxysxnjkhrmqd3ey73dp9n5y5yvyzcs64acc9g0k2epcpwwyya4spvhnp8njumphttps://nostr.aeIs there such a thing as a bip85 style way to drive child nsecs from a master nsec? If not, is this possible? Secondary question - could the master be secured in a multisig style fashion?