anchor.diff:        tools/{an,ua} $out/bin
     '';
   
  -  meta = {
  +  meta = with lib; {
       homepage = "https://www.washington.edu/imap/";
       description = "UW IMAP toolkit - IMAP-supporting software developed by the UW";
  -    license = lib.licenses.asl20;
  -    platforms = with lib.platforms; linux;
  +    license = licenses.asl20;
  +    platforms = platforms.unix;
     };
   
     passthru = {
  
positive.code: 
    hardeningDisable = [ "format" ];
  
    buildInputs = [ openssl ]
      ++ lib.optional (!stdenv.isDarwin) pam;
  
    patches = [ (fetchpatch {
      url = "https://salsa.debian.org/holmgren/uw-imap/raw/dcb42981201ea14c2d71c01ebb4a61691b6f68b3/debian/patches/1006_openssl1.1_autoverify.patch";
  
negative.code: { lib, stdenv, fetchurl, fetchpatch, pam, openssl, libkrb5 }:
  
  stdenv.mkDerivation rec {
    pname = "uw-imap";
  