diff --git a/flake/src.nix b/flake/src.nix
index 0d64c5a8..639df008 100644
--- a/flake/src.nix
+++ b/flake/src.nix
@@ -180,7 +180,7 @@
       "intel.oneapi.lin.compilers-common,v=2025.1.1+10"
     ];
   };
-  rsshub =  pkgs.dockerTools.pullImage
+  rsshub = pkgs.dockerTools.pullImage
   {
     imageName = "diygod/rsshub";
     imageDigest = "sha256:1f9d97263033752bf5e20c66a75e134e6045b6d69ae843c1f6610add696f8c22";
@@ -188,4 +188,9 @@
     finalImageName = "rsshub";
     finalImageTag = "latest";
   };
+  atat = pkgs.fetchurl
+  {
+    url = "https://axelvandewalle.github.io/www-avdw/atat/atat3_50.tar.gz";
+    sha256 = "14sblzqsi5bxfhsjbq256bc2gfd7zrxyf5za0iaw77b592ppjg3m";
+  };
 }
diff --git a/packages/atat.nix b/packages/atat.nix
new file mode 100644
index 00000000..ac7d2f96
--- /dev/null
+++ b/packages/atat.nix
@@ -0,0 +1,18 @@
+{ stdenv, src, perl, coreutils }: stdenv.mkDerivation
+{
+  name = "atat";
+  inherit src;
+  nativeBuildInputs = [ perl ];
+  configurePhase =
+  ''
+    patchShebangs src
+    echo "#!/bin/sh" > safecp
+    echo "cp \"\$@\"" >> safecp
+  '';
+  buildPhase = "make -C src -j$NIX_BUILD_CORES";
+  installPhase =
+  ''
+    mkdir -p $out/bin
+    make -C src BINDIR=$out/bin install
+  '';
+}
diff --git a/packages/default.nix b/packages/default.nix
index 69ce45b5..1e90a17f 100644
--- a/packages/default.nix
+++ b/packages/default.nix
@@ -142,6 +142,7 @@ inputs: rec
       { src = inputs.topInputs.self.src.lumerical.licenseManager.license; };
   };
   speedtest = inputs.pkgs.callPackage ./speedtest.nix { src = inputs.topInputs.speedtest; };
+  atat = inputs.pkgs.callPackage ./atat.nix { src = inputs.topInputs.self.src.atat; };
 
   fromYaml = content: builtins.fromJSON (builtins.readFile
     (inputs.pkgs.runCommand "toJSON" {}