diff --git a/krebs/5pkgs/cac.nix b/krebs/5pkgs/cac.nix
new file mode 100644
index 000000000..3322e1a13
--- /dev/null
+++ b/krebs/5pkgs/cac.nix
@@ -0,0 +1,36 @@
+{ stdenv, fetchgit, coreutils, curl, gnused, jq, ... }:
+
+stdenv.mkDerivation {
+  name = "cac";
+
+  src = fetchgit {
+    url = http://cgit.cd.retiolum/cac;
+    rev = "07ef31c50613634e88a31233d1fcd2ec3e52bfe8";
+    sha256 = "4e94709a3f580a53983ca418fa0b470817ac917aa1b2d095f2420afd36ea9158";
+  };
+
+  phases = [
+    "unpackPhase"
+    "installPhase"
+  ];
+
+  installPhase =
+    let
+      path = stdenv.lib.makeSearchPath "bin" [
+        coreutils
+        curl
+        gnused
+        jq
+      ];
+    in
+    ''
+      mkdir -p $out/bin
+
+      sed \
+        's,^\(  true) \)\(cac "$@";;\)$,\1 PATH=${path} \2,' \
+        < ./cac \
+        > $out/bin/cac
+
+      chmod +x $out/bin/cac
+    '';
+}
diff --git a/krebs/5pkgs/default.nix b/krebs/5pkgs/default.nix
index 231fda797..5de84f66c 100644
--- a/krebs/5pkgs/default.nix
+++ b/krebs/5pkgs/default.nix
@@ -6,6 +6,7 @@ in
 
 pkgs //
 {
+  cac = callPackage ./cac.nix {};
   dic = callPackage ./dic.nix {};
   genid = callPackage ./genid.nix {};
   github-hosts-sync = callPackage ./github-hosts-sync.nix {};
diff --git a/tv/1systems/wu.nix b/tv/1systems/wu.nix
index 27691ec56..ae6ef1327 100644
--- a/tv/1systems/wu.nix
+++ b/tv/1systems/wu.nix
@@ -91,6 +91,7 @@ in
         sxiv
         texLive
         tmux
+        tvpkgs.cac
         tvpkgs.dic
         zathura