diff --git a/pkgs/by-name/st/stepcode/package.nix b/pkgs/by-name/st/stepcode/package.nix
new file mode 100644
index 000000000000..c87737e7be02
--- /dev/null
+++ b/pkgs/by-name/st/stepcode/package.nix
@@ -0,0 +1,35 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  cmake,
+}:
+
+stdenv.mkDerivation {
+  pname = "stepcode";
+  version = "0.8.2-unstable-2026-02-09";
+
+  strictDeps = true;
+  __structuredAttrs = true;
+
+  src = fetchFromGitHub {
+    owner = "stepcode";
+    repo = "stepcode";
+    rev = "74b6fe45751bd60be749bc80766f38745d29ed72";
+    hash = "sha256-RDYHRvotBd6xBuo6eZ6ZB8RHJz5suQ5Rx8LeZlbbBGQ=";
+  };
+
+  nativeBuildInputs = [
+    cmake
+  ];
+
+  meta = {
+    description = "Library for reading and writing STEP Part 21 exchange files";
+    homepage = "https://github.com/stepcode/stepcode";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [
+      wishstudio
+    ];
+    platforms = lib.platforms.all;
+  };
+}