diff --git a/pkgs_wip/hiit.nix b/pkgs_wip/hiit.nix
new file mode 100644
index 0000000..65a6c88
--- /dev/null
+++ b/pkgs_wip/hiit.nix
@@ -0,0 +1,79 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  cargo,
+  meson,
+  ninja,
+  pkg-config,
+  rustPlatform,
+  rustc,
+  wrapGAppsHook4,
+  cairo,
+  gdk-pixbuf,
+  glib,
+  gtk4,
+  libadwaita,
+  pango,
+  darwin,
+  alsa-lib,
+  desktop-file-utils,
+}:
+
+stdenv.mkDerivation rec {
+  pname = "exercise-timer";
+  version = "1.8.1";
+
+  src = fetchFromGitHub {
+    owner = "mfep";
+    repo = "exercise-timer";
+    rev = "v${version}";
+    hash = "sha256-6MBSUYFZ8nMZX7acam8T0uJWb9E2/L9vnKzJq14p4BY=";
+  };
+
+  cargoDeps = rustPlatform.fetchCargoTarball {
+    inherit src;
+    name = "${pname}-${version}";
+    hash = "sha256-mXHw87IUMq1qXQSTavI/ReKUyB0rNMXYld8vND38C30=";
+  };
+
+  nativeBuildInputs = [
+    cargo
+    meson
+    ninja
+    pkg-config
+    rustPlatform.bindgenHook
+    rustPlatform.cargoSetupHook
+    rustc
+    wrapGAppsHook4
+    desktop-file-utils
+  ];
+
+  buildInputs =
+    [
+      cairo
+      gdk-pixbuf
+      glib
+      gtk4
+      libadwaita
+      pango
+    ]
+    ++ lib.optionals stdenv.isDarwin [
+      darwin.apple_sdk.frameworks.CoreAudio
+    ]
+    ++ lib.optionals stdenv.isLinux [
+      alsa-lib
+      pulseaudio
+      pipewire
+    ];
+
+  meta = {
+    description = "Timer app for high intensity interval training";
+    homepage = "https://github.com/mfep/exercise-timer";
+    changelog = "https://github.com/mfep/exercise-timer/blob/${src.rev}/CHANGELOG.md";
+    license = lib.licenses.gpl3Only;
+    maintainers = with lib.maintainers; [ CaptainJawZ ];
+    mainProgram = "hiit";
+    platforms = lib.platforms.all;
+  };
+}