go.hansaray.pw/hdkeys
    A library to create Bitcoin and Nostr keys from the same mnemonic seeds, and a command-line tool that uses this library

go.hansaray.pw/ntpc
    Implementation of an NTP client in Go

go.hansaray.pw/citadel
    Library to access Citadel email and collaboration servers from Go, and a command-line tool that uses this library to sync data with the server.