diff --git a/pkgs/development/tools/misc/topiary/default.nix b/pkgs/development/tools/misc/topiary/default.nix
new file mode 100644
index 000000000000..9a9529bfb5b4
--- /dev/null
+++ b/pkgs/development/tools/misc/topiary/default.nix
@@ -0,0 +1,28 @@
+{ lib, rustPlatform, fetchFromGitHub }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "topiary";
+  version = "unstable-2022-12-02";
+
+  src = fetchFromGitHub {
+    owner = "tweag";
+    repo = pname;
+    rev = "ae861a30097bd6297f553eb0ea2597f86f16d156";
+    sha256 = "sha256-WVrl+LxWSbHkbFGbkUhmw4Klwg6CzfnLAz8F0mF0kb8=";
+  };
+
+  cargoSha256 = "sha256-qoCOcYp1NYz/YhIBP6AkCCudVLpqhztRehc2xZoYp9A=";
+
+  postInstall = ''
+    install -Dm444 languages/* -t $out/share/languages
+  '';
+
+  TOPIARY_LANGUAGE_DIR = "${placeholder "out"}/share/languages";
+
+  meta = with lib; {
+    description = "A uniform formatter for simple languages, as part of the Tree-sitter ecosystem";
+    homepage = "https://github.com/tweag/topiary";
+    license = licenses.mit;
+    maintainers = with maintainers; [ figsoda ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8733af13fcfa..9655638876d4 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12246,6 +12246,8 @@ with pkgs;
     inherit (darwin.apple_sdk.frameworks) AppKit Cocoa Foundation;
   };
 
+  topiary = callPackage ../development/tools/misc/topiary { };
+
   todo = callPackage ../tools/misc/todo { };
 
   tor = callPackage ../tools/security/tor { };