diff --git a/pkgs/by-name/si/simpleBluez/package.nix b/pkgs/by-name/si/simpleBluez/package.nix
new file mode 100644
index 000000000000..ab5b5f74b072
--- /dev/null
+++ b/pkgs/by-name/si/simpleBluez/package.nix
@@ -0,0 +1,47 @@
+{
+  stdenv,
+  fetchFromGitHub,
+  cmake,
+  pkg-config,
+  dbus,
+  fmt_9,
+  lib,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  pname = "simpleBluez";
+
+  version = "0.7.3";
+
+  src = fetchFromGitHub {
+    owner = "OpenBluetoothToolbox";
+    repo = "SimpleBLE";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-CPBdPnBeQ0c3VjSX0Op6nCHF3w0MdXGULbk1aavr+LM=";
+  };
+
+  outputs = [
+    "out"
+    "dev"
+  ];
+
+  sourceRoot = "${finalAttrs.src.name}/simplebluez";
+
+  cmakeFlags = [ "-DLIBFMT_LOCAL_PATH=${fmt_9.src}" ];
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  buildInputs = [
+    dbus
+  ];
+
+  meta = with lib; {
+    description = "C++ abstraction layer for BlueZ over DBus";
+    homepage = "https://github.com/OpenBluetoothToolbox/SimpleBLE";
+    license = licenses.gpl3Only;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ aciceri ];
+  };
+})
diff --git a/pkgs/by-name/si/simpleDBus/package.nix b/pkgs/by-name/si/simpleDBus/package.nix
new file mode 100644
index 000000000000..1e2cbaa0b2a3
--- /dev/null
+++ b/pkgs/by-name/si/simpleDBus/package.nix
@@ -0,0 +1,47 @@
+{
+  stdenv,
+  fetchFromGitHub,
+  cmake,
+  pkg-config,
+  dbus,
+  fmt_9,
+  lib,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  pname = "simpleDBus";
+
+  version = "0.7.3";
+
+  src = fetchFromGitHub {
+    owner = "OpenBluetoothToolbox";
+    repo = "SimpleBLE";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-CPBdPnBeQ0c3VjSX0Op6nCHF3w0MdXGULbk1aavr+LM=";
+  };
+
+  outputs = [
+    "out"
+    "dev"
+  ];
+
+  sourceRoot = "${finalAttrs.src.name}/simpledbus";
+
+  cmakeFlags = [ "-DLIBFMT_LOCAL_PATH=${fmt_9.src}" ];
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  buildInputs = [
+    dbus
+  ];
+
+  meta = with lib; {
+    description = "C++ wrapper for libdbus-1";
+    homepage = "https://github.com/OpenBluetoothToolbox/SimpleBLE";
+    license = licenses.gpl3Only;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ aciceri ];
+  };
+})
diff --git a/pkgs/by-name/zm/zmkBATx/package.nix b/pkgs/by-name/zm/zmkBATx/package.nix
new file mode 100644
index 000000000000..82e49e99c95e
--- /dev/null
+++ b/pkgs/by-name/zm/zmkBATx/package.nix
@@ -0,0 +1,51 @@
+{
+  stdenv,
+  fetchFromGitHub,
+  lib,
+  qt6,
+  pkg-config,
+  dbus,
+  simpleBluez,
+  simpleDBus,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  pname = "zmkBATx";
+
+  version = "1.0.1";
+
+  src = fetchFromGitHub {
+    owner = "mh4x0f";
+    repo = "zmkBATx";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-xbiwRHVTuaZDH3RZlMK2CpKBThtS8g6q5r3C+OccDZg=";
+  };
+
+  nativeBuildInputs = [
+    qt6.wrapQtAppsHook
+    pkg-config
+    qt6.qmake
+  ];
+
+  buildInputs = [
+    qt6.qtbase
+    qt6.qtconnectivity
+    dbus.lib
+    simpleBluez
+    simpleDBus
+  ];
+
+  postPatch = ''
+    substituteInPlace zmkBATx.pro --replace-fail "/usr/include/dbus-1.0" "${dbus.dev}/include/dbus-1.0"
+    substituteInPlace zmkBATx.pro --replace-fail "/usr/lib/x86_64-linux-gnu/dbus-1.0/include" "${dbus.lib}/lib/dbus-1.0/include"
+  '';
+
+  meta = with lib; {
+    description = "Battery monitoring for ZMK split keyboards";
+    longDescription = "Opensource tool for peripheral battery monitoring zmk split keyboard over BLE for linux.";
+    homepage = "https://github.com/mh4x0f/zmkBATx";
+    license = licenses.mit;
+    mainProgram = "zmkbatx";
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ aciceri ];
+  };
+})