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Layerjack (Onion Knight) | 5 months ago (raw) | root | parent | reply | flag 
 Did you run 

go get github.com/nbd-wtf/go-nostr

?
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verita84 | 5 months ago (raw) | root | parent | reply | flag 
 Yes

 undefined: nostr.DerivePublicKey

nostr is never defined anywhere
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Layerjack (Onion Knight) | 5 months ago (raw) | root | parent | reply | flag 
 import ... go-nostr should define it. 🤔

Let me try to compile it in termux
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verita84 | 5 months ago (raw) | root | parent | reply | flag 
 Looks like your nsec section shoud be like this?

  pk, _ := nostr.GetPublicKey(sk)
    nsec, _ := nip19.EncodePrivateKey(sk)
    npub, _ := nip19.EncodePublicKey(pk)
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Layerjack (Onion Knight) | 5 months ago (raw) | root | parent | reply | flag 
 Does this compile?
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verita84 | 5 months ago (raw) | root | parent | reply | flag 
 It moves on
 Looks like the entite  event section is wrong too. Nothing like the sample
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Layerjack (Onion Knight) | 5 months ago (raw) | root | parent | reply | flag 
 Need to read the code for .Publish() to see how to construct the event struct for DM
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Layerjack (Onion Knight) | 5 months ago (raw) | root | parent | reply | flag 
 It's KindEncryptedDirectMessage. This is the struct. nip4.go has encryption functions

ev := nostr.Event{
	PubKey:    pub,
	CreatedAt: nostr.Now(),
	Kind:      KindEncryptedDirectMessage,
	Tags:      nil,
	Content:   need to encrypt this,
}