nostr:nprofile1qqsr9cvzwc652r4m83d86ykplrnm9dg5gwdvzzn8ameanlvut35wy3gpp4mhxue69uhkummn9ekx7mqprfmhxue69uhhg6r9vehhyetnwshxummnw3erztnrdaksz9rhwden5te0wfjkccte9ejxzmt4wvhxjmcgek0h3 and nostr:nprofile1qqsyvrp9u6p0mfur9dfdru3d853tx9mdjuhkphxuxgfwmryja7zsvhqpzamhxue69uhhv6t5daezumn0wd68yvfwvdhk6tcpz9mhxue69uhkummnw3ezuamfdejj7qgwwaehxw309ahx7uewd3hkctcscpyug is there any documentation or how private zaps are implemented in Damus and Amethyst?