diff --git a/pkgs/by-name/ro/roc/package.nix b/pkgs/by-name/ro/roc/package.nix
new file mode 100755
index 000000000000..f65a958d3032
--- /dev/null
+++ b/pkgs/by-name/ro/roc/package.nix
@@ -0,0 +1,113 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  libffi,
+  libxml2,
+  makeBinaryWrapper,
+  cmake,
+  glibc,
+  rustPlatform,
+  zig_0_13,
+  llvmPackages_18,
+  writableTmpDirAsHomeHook,
+  valgrind,
+  autoPatchelfHook,
+}:
+
+let
+  llvmPackages = llvmPackages_18;
+  rocVersion = "alpha3";
+in
+
+rustPlatform.buildRustPackage rec {
+  pname = "roc";
+  version = "0-${rocVersion}";
+
+  src = fetchFromGitHub {
+    owner = "roc-lang";
+    repo = "roc";
+    rev = "9a0238e0f34c09e27e3ca89e8fc5a684a21bf456";
+    hash = "sha256-iM16DlTf+1yXBZVH7QqzhKuSkn1n/ZDosnZj3t+io0E=";
+  };
+
+  nativeBuildInputs =
+    [
+      cmake
+      zig_0_13
+    ]
+    ++ lib.optionals stdenv.isLinux [
+      autoPatchelfHook
+    ];
+
+  buildInputs =
+    [
+      libffi
+      libxml2
+      llvmPackages.clang
+      llvmPackages.llvm.dev
+      makeBinaryWrapper
+    ]
+    ++ lib.optionals stdenv.isLinux [
+      glibc
+      stdenv.cc.cc.lib
+    ];
+
+  useFetchCargoVendor = true;
+  cargoHash = "sha256-9cOJ79GrnrMEIhFikvCfXa2SI4O0fy50cr4Fb6p4Vho=";
+
+  # prevents zig AccessDenied error github.com/ziglang/zig/issues/6810
+  XDG_CACHE_HOME = "xdg_cache";
+
+  preBuild =
+    let
+      llvmVersion = builtins.splitVersion llvmPackages.release_version;
+      llvmMajorMinorStr = builtins.elemAt llvmVersion 0 + "0";
+    in
+    ''
+      export LLVM_SYS_${llvmMajorMinorStr}_PREFIX=${llvmPackages.llvm.dev}
+    '';
+
+  postInstall =
+    lib.optionalString stdenv.isLinux ''
+      wrapProgram $out/bin/roc \
+        --set NIX_GLIBC_PATH ${glibc.out}/lib \
+        --set NIX_LIBGCC_S_PATH ${stdenv.cc.cc.lib}/lib \
+        --prefix PATH : ${lib.makeBinPath [ stdenv.cc ]}
+    ''
+    + lib.optionalString (!stdenv.isLinux) ''
+      wrapProgram $out/bin/roc --prefix PATH : ${lib.makeBinPath [ stdenv.cc ]}
+    '';
+
+  nativeCheckInputs = [
+    writableTmpDirAsHomeHook
+    llvmPackages.clang
+    valgrind
+  ];
+
+  checkPhase =
+    lib.optionalString stdenv.isLinux ''
+      runHook preCheck
+      NIX_GLIBC_PATH=${glibc.out}/lib NIX_LIBGCC_S_PATH=${stdenv.cc.cc.lib}/lib cargo test --release --workspace --exclude test_mono --exclude uitest -- --skip glue_cli_tests
+      runHook postCheck
+    ''
+    + lib.optionalString (!stdenv.isLinux) ''
+      runHook preCheck
+      cargo test --release --workspace --exclude test_mono --exclude uitest -- --skip glue_cli_tests
+      runHook postCheck
+    '';
+
+  meta = {
+    description = "Fast, friendly, functional programming language";
+    mainProgram = "roc";
+    homepage = "https://www.roc-lang.org/";
+    changelog = "https://github.com/roc-lang/roc/releases/tag/${rocVersion}";
+    license = lib.licenses.upl;
+    maintainers = [
+      lib.maintainers.anton-4
+      lib.maintainers.bhansconnect
+      lib.maintainers.rtfeldman
+    ];
+    platforms = [ "x86_64-linux" ];
+  };
+}