diff --git a/lib/zerotier-interface.nix b/lib/zerotier-interface.nix
deleted file mode 100644
index 687cca3..0000000
--- a/lib/zerotier-interface.nix
+++ /dev/null
@@ -1,29 +0,0 @@
-nwid:
-{ pkgs, ... }:
-let
-  ztInterfaceScript = pkgs.writeShellScript "zt-interface" ''
-    #!/usr/bin/env bash
-
-    network="$1"
-    index=${"2:-0"}
-
-    network="0x$network"
-
-    # zerotier hash function 
-    network=$(( (($network ^ ($network >> (3*8))) + $index ) % (1<<(5*8)) ))
-
-    # encode the result in base32
-    while [ $network -gt 0 ]; do
-      index=$(( $network % (1<<5) + 24 ))
-      [ $index -lt 50 ] && index=$(( $index + 73 ))
-      result="$(printf "\\%03o" $index)$result"
-      network=$(( $network >> 5 ))
-    done
-
-    echo "zt$(printf %b "$result")"
-  '';
-  result = pkgs.runCommand "zt-interface-output" { } ''
-    ${ztInterfaceScript} > $out
-  '';
-in
-builtins.readFile result
diff --git a/modules/clan/phonebox/default.nix b/modules/clan/phonebox/default.nix
index d97328b..078a512 100644
--- a/modules/clan/phonebox/default.nix
+++ b/modules/clan/phonebox/default.nix
@@ -25,7 +25,6 @@
           {
             lib,
             config,
-            pkgs,
             ...
           }:
           let