diff --git a/RoundedSBE/default.nix b/RoundedSBE/default.nix
new file mode 100644
index 0000000..add5d38
--- /dev/null
+++ b/RoundedSBE/default.nix
@@ -0,0 +1,79 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  qtbase,
+  qtx11extras,
+  qttools,
+  kglobalaccel,
+  kinit,
+  kwin,
+  kdecoration,
+  kcrash,
+  kio,
+  knotifications,
+  kguiaddons,
+  kcoreaddons,
+  # systemsettings,
+  cmake,
+  qt5base,
+  extra-cmake-modules,
+  wrapQtAppsHook,
+  libepoxy,
+  kdelibs4support,
+  libXdmcp
+}:
+
+stdenv.mkDerivation rec {
+  pname = "RoundedSBE";
+  version = "0.1.0";
+
+  src = fetchFromGitHub {
+    owner = "a-parhom";
+    repo = "RoundedSBE";
+    rev = "ba60e3c84ed0bab18d369435e7d8cdd1e33fd6b2";
+    sha256 = "sha256-0000000000000000000000000000000000000000000=";
+  };
+
+  # dontWrapQtApps = true;
+
+  buildInputs = [
+    qtbase
+    qtx11extras
+    qttools
+    kglobalaccel
+    kdelibs4support
+    kcrash
+    kinit
+    kwin
+    kdecoration
+    kio
+    knotifications
+    kguiaddons
+    kcoreaddons
+    # systemsettings
+    libepoxy
+    libXdmcp
+  ];
+
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+    wrapQtAppsHook
+  ];
+
+  postConfigure = ''
+    substituteInPlace cmake_install.cmake \
+      --replace "${kdelibs4support}" "$out"
+
+  '';
+
+  meta = with lib; {
+    name = "RoundedSBE";
+    description = "Round corners and outline effect for Sierra Breeze Enhanced.";
+    homepage = "https://github.com/a-parhom/RoundedSBE";
+    license = licenses.gpl3;
+    maintainers = [ "chriscochrun" ];
+    platforms = platforms.all;
+  };
+}
diff --git a/RoundedSBE/flake.lock b/RoundedSBE/flake.lock
new file mode 100644
index 0000000..a37b72c
--- /dev/null
+++ b/RoundedSBE/flake.lock
@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1671359686,
+        "narHash": "sha256-3MpC6yZo+Xn9cPordGz2/ii6IJpP2n8LE8e/ebUXLrs=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "04f574a1c0fde90b51bf68198e2297ca4e7cccf4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/RoundedSBE/flake.nix b/RoundedSBE/flake.nix
new file mode 100644
index 0000000..9f185c0
--- /dev/null
+++ b/RoundedSBE/flake.nix
@@ -0,0 +1,21 @@
+{
+  description = "Rounded Sierra Breeze Enhanced";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem
+      (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+          src = ./.;
+        in 
+        {
+          devShell = import ./shell.nix { inherit pkgs; };
+          defaultPackage = pkgs.libsForQt5.callPackage ./default.nix {};
+        }
+      );
+}