diff --git a/pkgs/development/tools/misc/planus/default.nix b/pkgs/development/tools/misc/planus/default.nix
new file mode 100644
index 000000000000..9074debb2633
--- /dev/null
+++ b/pkgs/development/tools/misc/planus/default.nix
@@ -0,0 +1,38 @@
+{ lib
+, rustPlatform
+, fetchCrate
+, installShellFiles
+, stdenv
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "planus";
+  version = "0.4.0";
+
+  src = fetchCrate {
+    pname = "planus-cli";
+    inherit version;
+    hash = "sha256-KpX4KSA2MjfRS8M0WVYpY4hoSvOOB7MUz7YKZwEGqj8=";
+  };
+
+  cargoHash = "sha256-yT/ZK5GG0rXpiaCQlQclK2iY8BXhhmiW/UDX9aL8wBQ=";
+
+  nativeBuildInputs = [
+    installShellFiles
+  ];
+
+  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
+    installShellCompletion --cmd planus \
+      --bash <($out/bin/planus generate-completions bash) \
+      --fish <($out/bin/planus generate-completions fish) \
+      --zsh <($out/bin/planus generate-completions zsh)
+  '';
+
+  meta = with lib; {
+    description = "An alternative compiler for flatbuffers";
+    homepage = "https://github.com/planus-org/planus";
+    changelog = "https://github.com/planus-org/planus/blob/v${version}/CHANGELOG.md";
+    license = with licenses; [ asl20 mit ];
+    maintainers = with maintainers; [ figsoda ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d1008c0c5d95..5702258aa873 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19059,6 +19059,8 @@ with pkgs;
 
   picotool = callPackage ../development/tools/picotool { };
 
+  planus = callPackage ../development/tools/misc/planus { };
+
   pmccabe = callPackage ../development/tools/misc/pmccabe { };
 
   pkgconf-unwrapped = callPackage ../development/tools/misc/pkgconf { };