diff --git a/README.md b/README.md
index 21d3876..8fbb023 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,9 @@ nostril - generate nostr events
 *--tag* <key> <value>
 	Add a tag with a single value
 
+*--tagn* <N> <value \* N ...>
+	Add a tag with 0 or more elements
+
 *-t*
 	Shorthand for --tag t <hashtag>
 
diff --git a/doc/nostril.1 b/doc/nostril.1
index 9d69e8b..5076ca9 100644
--- a/doc/nostril.1
+++ b/doc/nostril.1
@@ -1,4 +1,4 @@
-.\" Generated by scdoc 1.11.2
+.\" Generated by scdoc 1.11.3
 .\" Complete documentation for this program is not available as a GNU info page
 .ie \n(.g .ds Aq \(aq
 .el       .ds Aq '
@@ -6,87 +6,92 @@
 .ad l
 .\" Begin generated content:
 .TH "nostril" "1" "1980-01-01"
-.P
+.PP
 .SH NAME
-.P
+.PP
 nostril - generate nostr events
-.P
+.PP
 .SH SYNPOSIS
-.P
+.PP
 \fBnostril\fR [OPTIONS.\&.\&.\&]
-.P
+.PP
 .SH DESCRIPTION
-.P
+.PP
 \fBnostril\fR is a tool that creates and signs nostr events.\&
-.P
+.PP
 .SH OPTIONS
-.P
+.PP
 \fB--content\fR
 .RS 4
 The text contents of the note
-.P
+.PP
 .RE
 \fB--dm\fR <hex pubkey>
 .RS 4
 Create a direct message.\& This will create a kind-4 note with the
 contents encrypted>
-.P
+.PP
 .RE
 \fB--envelope\fR
 .RS 4
 Wrap the event with `["EVENT", .\&.\&.\& ]` for easy relaying
-.P
+.PP
 .RE
 \fB--kind\fR <number>
 .RS 4
 Set the kind of the note
-.P
+.PP
 .RE
 \fB--created-at\fR <unix timestamp>
 .RS 4
 Set the created at.\& Optional, this is set automatically.\&
-.P
+.PP
 .RE
 \fB--sec\fR <hex seckey>
 .RS 4
 Set the secret key for signing, otherwise one will be randomly generated.\&
-.P
+.PP
 .RE
 \fB--mine-pubkey\fR
 .RS 4
 Mine a pubkey.\& This may or may not be cryptographically dubious.\&
-.P
+.PP
 .RE
 \fB--pow\fR <difficulty>
 .RS 4
 Number of leading 0 bits of the id the mine for proof-of-work.\&
-.P
+.PP
 .RE
 \fB--tag\fR <key> <value>
 .RS 4
 Add a tag with a single value
-.P
+.PP
+.RE
+\fB--tagn\fR <N> <value * N .\&.\&.\&>
+.RS 4
+Add a tag with 0 or more elements
+.PP
 .RE
 \fB-t\fR
 .RS 4
 Shorthand for --tag t <hashtag>
-.P
+.PP
 .RE
 \fB-p\fR
 .RS 4
 Shorthand for --tag p <hex pubkey>
-.P
+.PP
 .RE
 \fB-e\fR
 .RS 4
 Shorthand for --tag e <note id>
-.P
-.P
+.PP
+.PP
 .RE
 .SH Examples
-.P
+.PP
 \fBGenerate an event\fR
-.P
+.PP
 .nf
 .RS 4
 $ \&./nostril --sec <key> --content "this is a message"
@@ -101,9 +106,9 @@ $ \&./nostril --sec <key> --content "this is a message"
 }
 .fi
 .RE
-.P
+.PP
 \fBWrap event to send to a relay\fR
-.P
+.PP
 .nf
 .RS 4
 $ \&./nostril --envelope --sec <key> --content "hello"
@@ -119,33 +124,33 @@ $ \&./nostril --envelope --sec <key> --content "hello"
 } ]
 .fi
 .RE
-.P
+.PP
 \fBSend to a relay\fR
-.P
+.PP
 .nf
 .RS 4
 nostril --envelope --sec <key> --content "this is a message" | websocat wss://relay\&.damus\&.io
 .fi
 .RE
-.P
+.PP
 \fBSend a nip04 DM\fR
-.P
+.PP
 .nf
 .RS 4
 nostril --envelope --dm <pubkey> --sec <key> --content "this is a secret" | websocat wss://relay\&.damus\&.io
 .fi
 .RE
-.P
+.PP
 \fBMine a pubkey\fR
-.P
+.PP
 .nf
 .RS 4
 nostril --mine-pubkey --pow <difficulty>
 .fi
 .RE
-.P
+.PP
 \fBReply to an event.\& nip10 compliant, includes the `thread_id`\fR
-.P
+.PP
 .nf
 .RS 4
 \&./nostril --envelope --sec <key> --content "this is reply message" --tag e <thread_id> --tag e <note_id> | websocat wss://relay\&.damus\&.io
diff --git a/shell.nix b/shell.nix
index e9e3d79..db134c4 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,5 +1,5 @@
 { pkgs ? import <nixpkgs> {} }:
 with pkgs;
 mkShell {
-  buildInputs = [ secp256k1 gdb autoreconfHook ];
+  buildInputs = [ scdoc ];
 }