diff --git a/third_party/default.nix b/third_party/default.nix
index e172ab0f4c..93b93e5f76 100644
--- a/third_party/default.nix
+++ b/third_party/default.nix
@@ -23,6 +23,12 @@ let
     rev = "e07af104b8e41d1cd7e41dc7ac3fdcdf4953efae";
     hash = "sha256:07syygn1rc5n1big7hf42pzgm5wc1r0mzglzvlbcb7rkzgqqhbqx";
   };
+  naerskSrc = nixpkgs.fetchFromGitHub {
+    owner = "nmattia";
+    repo = "naersk";
+    rev = "e0fe990b478a66178a58c69cf53daec0478ca6f9";
+    sha256 = "sha256:0qjyfmw5v7s6ynjns4a61vlyj9cghj7vbpgrp9147ngb1f8krz2c";
+  };
 in
 rec {
   inherit nixpkgsConfig nixpkgs;
@@ -50,5 +56,13 @@ rec {
   readTree = import ./tvl/nix/readTree {};
   gopkgs = readTree ch ./gopkgs;
 
+  bat_syntaxes = import ./tvl/third_party/bat_syntaxes { pkgs = ch.depot.pkgs; };
+  cheddar = import ./tvl/tools/cheddar {
+    pkgs = ch.depot.pkgs // {
+      inherit naersk bat_syntaxes;
+    };
+  };
+  naersk = nixpkgs.callPackage naerskSrc {};
+
   crate2nix = import "${crate2nixSrc}" { pkgs = ch.depot.pkgs; };
 }