worf: minor updates

shells/ctf.nix

@@ -1,4 +1,6 @@
-{ pkgs ? import <nixpkgs> {} }:
+let
+  unstable = import (fetchTarball https://nixos.org/channels/nixos-unstable/nixexprs.tar.xz) { };
+in { pkgs ? import <nixpkgs> {} }:
   pkgs.mkShell {
     nativeBuildInputs = with pkgs; [
       python3
@@ -37,19 +39,21 @@
       dig
       nmap
       rustscan
+      unstable.thc-hydra
 
       # davtest
       # cadaver
       httpie
 
       john
+      unstable.hashcat
+
     ] ++ lib.optionals (pkgs.stdenv.isLinux) [
       sage
       gdb
       pwndbg
       ropgadget
       ropper
-      hashcat
       wireshark
       tcpdump
     ];