diff --git a/keyer.go b/keyer.go
new file mode 100644
index 0000000..fcc2864
--- /dev/null
+++ b/keyer.go
@@ -0,0 +1,20 @@
+package nostr
+
+import "context"
+
+type Keyer interface {
+	Signer
+	Cipher
+}
+
+// A Signer provides basic public key signing methods.
+type Signer interface {
+	GetPublicKey(context.Context) (string, error)
+	SignEvent(context.Context, *Event) error
+}
+
+// A Cipher provides NIP-44 encryption and decryption methods.
+type Cipher interface {
+	Encrypt(ctx context.Context, plaintext string, recipientPublicKey string) (base64ciphertext string, err error)
+	Decrypt(ctx context.Context, base64ciphertext string, senderPublicKey string) (plaintext string, err error)
+}
diff --git a/keyer/deprecated.go b/keyer/deprecated.go
new file mode 100644
index 0000000..4b67982
--- /dev/null
+++ b/keyer/deprecated.go
@@ -0,0 +1,25 @@
+package keyer
+
+import (
+	"context"
+
+	"github.com/nbd-wtf/go-nostr"
+)
+
+// Deprecated: use nostr.Keyer instead
+type Keyer interface {
+	Signer
+	Cipher
+}
+
+// Deprecated: use nostr.Signer instead
+type Signer interface {
+	GetPublicKey(context.Context) (string, error)
+	SignEvent(context.Context, *nostr.Event) error
+}
+
+// Deprecated: use nostr.Cipher instead
+type Cipher interface {
+	Encrypt(ctx context.Context, plaintext string, recipientPublicKey string) (base64ciphertext string, err error)
+	Decrypt(ctx context.Context, base64ciphertext string, senderPublicKey string) (plaintext string, err error)
+}
diff --git a/keyer/lib.go b/keyer/lib.go
index 46e3bae..0972b30 100644
--- a/keyer/lib.go
+++ b/keyer/lib.go
@@ -15,22 +15,12 @@ import (
 	"github.com/puzpuzpuz/xsync/v3"
 )
 
-type Keyer interface {
-	Signer
-	Cipher
-}
-
-// A Signer provides basic public key signing methods.
-type Signer interface {
-	GetPublicKey(context.Context) (string, error)
-	SignEvent(context.Context, *nostr.Event) error
-}
-
-// A Cipher provides NIP-44 encryption and decryption methods.
-type Cipher interface {
-	Encrypt(ctx context.Context, plaintext string, recipientPublicKey string) (base64ciphertext string, err error)
-	Decrypt(ctx context.Context, base64ciphertext string, senderPublicKey string) (plaintext string, err error)
-}
+var (
+	_ nostr.Keyer = (*BunkerSigner)(nil)
+	_ nostr.Keyer = (*EncryptedKeySigner)(nil)
+	_ nostr.Keyer = (*KeySigner)(nil)
+	_ nostr.Keyer = (*ManualSigner)(nil)
+)
 
 type SignerOptions struct {
 	BunkerClientSecretKey string
@@ -45,7 +35,7 @@ type SignerOptions struct {
 	Password string
 }
 
-func New(ctx context.Context, pool *nostr.SimplePool, input string, opts *SignerOptions) (Keyer, error) {
+func New(ctx context.Context, pool *nostr.SimplePool, input string, opts *SignerOptions) (nostr.Keyer, error) {
 	if opts == nil {
 		opts = &SignerOptions{}
 	}