diff --git a/pkgs/applications/misc/retool/default.nix b/pkgs/applications/misc/retool/default.nix
new file mode 100644
index 000000000000..a88e719c6ddd
--- /dev/null
+++ b/pkgs/applications/misc/retool/default.nix
@@ -0,0 +1,58 @@
+{ lib
+, stdenv
+, python3
+, fetchFromGitHub
+, qt6
+}:
+
+python3.pkgs.buildPythonApplication {
+  pname = "retool";
+  version = "unstable-2023-08-24";
+
+  format = "pyproject";
+  disabled = python3.pkgs.pythonOlder "3.10";
+
+  src = fetchFromGitHub {
+    owner = "unexpectedpanda";
+    repo = "retool";
+    rev =  "d8acdb960d35b5a6b01d7dc66b7e40b3ec451301";
+    hash = "sha256-6y/7RR7O2xYKXdxaFtkRfnSlwygp/LRDUozUJo6ue7s=";
+  };
+
+  patches = [
+    # pythonRelaxDepsHook will not work in this package until
+    # https://github.com/NixOS/nixpkgs/pull/248516 hits master
+    ./relax_deps.patch
+  ];
+
+  nativeBuildInputs = with python3.pkgs; [
+    poetry-core
+    qt6.wrapQtAppsHook
+  ];
+
+  buildInputs = [
+    qt6.qtbase
+  ] ++
+  lib.optionals (stdenv.isLinux) [
+    qt6.qtwayland
+  ];
+
+  propagatedBuildInputs = with python3.pkgs; [
+    alive-progress
+    lxml
+    psutil
+    validators
+    pyside6
+    strictyaml
+  ];
+
+  # Upstream has no tests
+  doCheck = false;
+
+  meta = with lib; {
+    description = "A better filter tool for Redump and No-Intro dats";
+    homepage = "https://github.com/unexpectedpanda/retool";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ thiagokokada ];
+  };
+}
diff --git a/pkgs/applications/misc/retool/relax_deps.patch b/pkgs/applications/misc/retool/relax_deps.patch
new file mode 100644
index 000000000000..528d2b47d970
--- /dev/null
+++ b/pkgs/applications/misc/retool/relax_deps.patch
@@ -0,0 +1,25 @@
+diff --git a/pyproject.toml b/pyproject.toml
+index 6e62347..34600a0 100644
+--- a/pyproject.toml
++++ b/pyproject.toml
+@@ -13,12 +13,14 @@ packages = [
+ 
+ [tool.poetry.dependencies]
+ python = ">=3.10,<3.12"
+-strictyaml = "^1.6.2"
+-lxml = "^4.9.2"
+-PySide6 = "^6.4.2"
+-validators = "^0.20.0"
+-alive-progress = "^3.0.1"
+-psutil = "^5.9.4"
++strictyaml = "*"
++lxml = "*"
++# ERROR: Could not find a version that satisfies the requirement PySide6 (from retool) (from versions: none)
++# ERROR: No matching distribution found for PySide6
++# PySide6 = "*"
++validators = "*"
++alive-progress = "*"
++psutil = "*"
+ 
+ [tool.poetry.scripts]
+ retool = "retool:main"
diff --git a/pkgs/development/python-modules/about-time/default.nix b/pkgs/development/python-modules/about-time/default.nix
new file mode 100644
index 000000000000..3759957c9ca6
--- /dev/null
+++ b/pkgs/development/python-modules/about-time/default.nix
@@ -0,0 +1,31 @@
+{ lib
+, fetchPypi
+, buildPythonPackage
+}:
+
+buildPythonPackage rec {
+  pname = "about-time";
+  version = "4.2.1";
+
+  # PyPi release does not contain test files, but the repo has no release tags,
+  # so while having no tests is not ideal, follow the PyPi releases for now
+  # TODO: switch to fetchFromGitHub once this issue is fixed:
+  # https://github.com/rsalmei/about-time/issues/15
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-alOIYtM85n2ZdCnRSZgxDh2/2my32bv795nEcJhH/s4=";
+  };
+
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "about_time"
+  ];
+
+  meta = with lib; {
+    description = "A cool helper for tracking time and throughput of code blocks, with beautiful human friendly renditions";
+    homepage = "https://github.com/rsalmei/about-time";
+    license = licenses.mit;
+    maintainers = with maintainers; [ thiagokokada ];
+  };
+}
diff --git a/pkgs/development/python-modules/alive-progress/default.nix b/pkgs/development/python-modules/alive-progress/default.nix
new file mode 100644
index 000000000000..7e3adbf1166e
--- /dev/null
+++ b/pkgs/development/python-modules/alive-progress/default.nix
@@ -0,0 +1,41 @@
+{ lib
+, about-time
+, buildPythonPackage
+, click
+, fetchFromGitHub
+, grapheme
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "alive-progress";
+  version = "3.1.4";
+
+  src = fetchFromGitHub {
+    owner = "rsalmei";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-27PgxQ9nw8p5hfaSf/jPYG7419o3i8B8R09o93szSOk=";
+  };
+
+  propagatedBuildInputs = [
+    about-time
+    grapheme
+  ];
+
+  nativeCheckInputs = [
+    click
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "alive_progress"
+  ];
+
+  meta = with lib; {
+    description = "A new kind of Progress Bar, with real-time throughput, ETA, and very cool animations";
+    homepage = "https://github.com/rsalmei/alive-progress";
+    license = licenses.mit;
+    maintainers = with maintainers; [ thiagokokada ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7054f76b7740..ace14d9f0fd8 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6212,6 +6212,8 @@ with pkgs;
 
   reg = callPackage ../tools/virtualization/reg { };
 
+  retool = callPackage ../applications/misc/retool { };
+
   rex = callPackage ../tools/system/rex { };
 
   river = callPackage ../applications/window-managers/river { };
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 2776e271a9f0..6b0e50d61dde 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -20,6 +20,8 @@ self: super: with self; {
 
   aardwolf = callPackage ../development/python-modules/aardwolf { };
 
+  about-time = callPackage ../development/python-modules/about-time { };
+
   absl-py = callPackage ../development/python-modules/absl-py { };
 
   accessible-pygments = callPackage ../development/python-modules/accessible-pygments { };
@@ -426,6 +428,8 @@ self: super: with self; {
 
   algebraic-data-types = callPackage ../development/python-modules/algebraic-data-types { };
 
+  alive-progress = callPackage ../development/python-modules/alive-progress { };
+
   aliyun-python-sdk-cdn = callPackage ../development/python-modules/aliyun-python-sdk-cdn { };
 
   aliyun-python-sdk-config = callPackage ../development/python-modules/aliyun-python-sdk-config { };