diff --git a/pkgs/tools/system/rex/default.nix b/pkgs/tools/system/rex/default.nix
new file mode 100644
index 00000000000..2bb67333121
--- /dev/null
+++ b/pkgs/tools/system/rex/default.nix
@@ -0,0 +1,53 @@
+{ pkgs, lib, fetchurl, perlPackages, rsync, ... }:
+
+perlPackages.buildPerlPackage rec {
+  pname = "Rex";
+  version = "1.13.4";
+  src = fetchurl {
+    url = "mirror://cpan/authors/id/F/FE/FERKI/Rex-${version}.tar.gz";
+    sha256 = "a86e9270159b41c9a8fce96f9ddc97c5caa68167ca4ed33e97908bfce17098cf";
+  };
+  buildInputs = with perlPackages; [
+    FileShareDirInstall
+    ParallelForkManager
+    StringEscape
+    TestDeep
+    TestOutput
+    TestUseAllModules
+
+    rsync
+  ];
+
+  nativeBuildInputs = with perlPackages; [ ParallelForkManager ];
+
+  propagatedBuildInputs = with perlPackages; [
+    AWSSignature4
+    DataValidateIP
+    DevelCaller
+    DigestHMAC
+    FileLibMagic
+    HashMerge
+    HTTPMessage
+    IOPty
+    IOString
+    JSONMaybeXS
+    LWP
+    NetOpenSSH
+    NetSFTPForeign
+    SortNaturally
+    TermReadKey
+    TextGlob
+    URI
+    XMLSimple
+    YAML
+  ];
+
+  doCheck = false;
+
+  meta = {
+    homepage = "https://www.rexify.org";
+    description = "The friendly automation framework";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ qbit ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 53c335dc5a9..133df448a6b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4140,6 +4140,8 @@ with pkgs;
 
   reg = callPackage ../tools/virtualization/reg { };
 
+  rex = callPackage ../tools/system/rex { };
+
   river = callPackage ../applications/window-managers/river { };
 
   rivercarro = callPackage ../applications/misc/rivercarro { };
diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 2453bb92f40..a71cb0e2736 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -1334,10 +1334,9 @@ let
     version = "1.02";
     src = fetchurl {
       url = "mirror://cpan/authors/id/L/LD/LDS/AWS-Signature4-1.02.tar.gz";
-      sha256 =
-        "20bbc16cb3454fe5e8cf34fe61f1a91fe26c3f17e449ff665fcbbb92ab443ebd";
+      sha256 = "20bbc16cb3454fe5e8cf34fe61f1a91fe26c3f17e449ff665fcbbb92ab443ebd";
     };
-    propagatedBuildInputs = with perlPackages; [ LWP TimeDate URI ];
+    propagatedBuildInputs = [ LWP TimeDate URI ];
     meta = {
       description = "Create a version4 signature for Amazon Web Services";
       license = with lib.licenses; [ artistic1 gpl1Plus ];