diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 3d82774633b4..9b59838336a2 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -9675,6 +9675,12 @@
     githubId = 43796009;
     name = "Max Wilson";
   };
+  myaats = {
+    email = "mats@mats.sh";
+    github = "Myaats";
+    githubId = 6295090;
+    name = "Mats";
+  };
   myrl = {
     email = "myrl.0xf@gmail.com";
     github = "Myrl";
diff --git a/pkgs/development/python-modules/signalslot/default.nix b/pkgs/development/python-modules/signalslot/default.nix
new file mode 100644
index 000000000000..44f1c91fc435
--- /dev/null
+++ b/pkgs/development/python-modules/signalslot/default.nix
@@ -0,0 +1,48 @@
+{ stdenv
+, lib
+, buildPythonPackage
+, fetchPypi
+, contexter
+, eventlet
+, mock
+, pytestCheckHook
+, six
+, weakrefmethod
+}:
+
+buildPythonPackage rec {
+  pname = "signalslot";
+  version = "0.1.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-Z26RPNau+4719e82jMhb2LyIR6EvsANI8r3+eKuw494=";
+  };
+
+  propagatedBuildInputs = [
+    contexter
+    six
+    weakrefmethod
+  ];
+
+  checkInputs = [
+    eventlet
+    mock
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "signalslot" ];
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace "--pep8 --cov" "" \
+      --replace "--cov-report html" ""
+  '';
+
+  meta = with lib; {
+    description = "Simple Signal/Slot implementation";
+    homepage = "https://github.com/numergy/signalslot";
+    license = licenses.mit;
+    maintainers = with maintainers; [ myaats ];
+  };
+}
diff --git a/pkgs/development/python-modules/weakrefmethod/default.nix b/pkgs/development/python-modules/weakrefmethod/default.nix
new file mode 100644
index 000000000000..66c0aef2eb9f
--- /dev/null
+++ b/pkgs/development/python-modules/weakrefmethod/default.nix
@@ -0,0 +1,24 @@
+{ stdenv, lib, buildPythonPackage, fetchPypi, unittest2 }:
+
+buildPythonPackage rec {
+  pname = "weakrefmethod";
+  version = "1.0.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-N7wfu1V1rPghctTre2/EQS131aHXDf8sH4pFdDAc2mY=";
+  };
+
+  checkInputs = [
+    unittest2
+  ];
+
+  pythonImportsCheck = [ "weakrefmethod" ];
+
+  meta = with lib; {
+    description = "A WeakMethod class for storing bound methods using weak references";
+    homepage = "https://github.com/twang817/weakrefmethod";
+    license = licenses.psfl;
+    maintainers = with maintainers; [ myaats ];
+  };
+}
diff --git a/pkgs/development/tools/steamos-devkit/default.nix b/pkgs/development/tools/steamos-devkit/default.nix
new file mode 100644
index 000000000000..8451f7f9898e
--- /dev/null
+++ b/pkgs/development/tools/steamos-devkit/default.nix
@@ -0,0 +1,135 @@
+{ lib
+, fetchFromGitHub
+, fetchFromGitLab
+, writeScript
+, python3
+, copyDesktopItems
+, makeDesktopItem
+, pkg-config
+, SDL2
+}:
+let
+  # steamos-devkit requires a build of the unreleased pyimgui 2.0 branch, move to pythonPackages when 2.0 is released.
+  pyimgui = python3.pkgs.buildPythonPackage {
+    pname = "pyimgui";
+    version = "unstable-2022-03-06";
+
+    src = fetchFromGitHub {
+      owner = "pyimgui";
+      repo = "pyimgui";
+      rev = "1f095af5886f424ee12f26fa93b108b6420fafa4"; # dev/version-2.0 branch
+      fetchSubmodules = true;
+      sha256 = "sha256-k070ue132m8H1Zm8bo7J7spCS5dSTGOj689ci7vJ+aw=";
+    };
+
+    nativeBuildInputs = with python3.pkgs; [
+      cython
+      pkg-config
+      SDL2
+    ];
+
+    propagatedBuildInputs = with python3.pkgs; [
+      click
+      pyopengl
+      pysdl2
+    ];
+
+    # Requires OpenGL acceleration
+    doCheck = false;
+    pythonImportsCheck = [ "imgui" ];
+  };
+  steamos-devkit-script = ''
+    #!${python3.interpreter}
+    import os
+
+    # Change the cwd to avoid imgui using cwd which often is ~ to store the state, use the same location as the settings
+    path = os.path.expanduser(os.path.join("~", ".devkit-client-gui"))
+    os.makedirs(path, exist_ok=True)
+    os.chdir(path)
+
+    # Workaround to get pysdl to work on wayland, remove when https://gitlab.steamos.cloud/devkit/steamos-devkit/-/issues/1 is solved.
+    if os.environ.get("XDG_SESSION_TYPE") == "wayland":
+      os.environ["SDL_VIDEODRIVER"] = "wayland"
+
+    import devkit_client.gui2
+    devkit_client.gui2.main()
+  '';
+in
+python3.pkgs.buildPythonPackage rec {
+  pname = "steamos-devkit";
+  version = "0.20221101";
+
+  src = fetchFromGitLab {
+    domain = "gitlab.steamos.cloud";
+    owner = "devkit";
+    repo = "steamos-devkit";
+    rev = "v${version}";
+    sha256 = "sha256-VKnfcMF3WxkvqxlhJF+5j4Hso/TZpSS4dMOmSrWagRU=";
+  };
+
+  propagatedBuildInputs = with python3.pkgs; [
+    appdirs
+    bcrypt
+    cffi
+    cryptography
+    idna
+    ifaddr
+    netifaces
+    numpy
+    paramiko
+    pycparser
+    pyimgui
+    pynacl
+    pysdl2
+    signalslot
+    six
+  ];
+
+  nativeBuildInputs = [
+    copyDesktopItems
+  ];
+
+  postUnpack = ''
+    # Find the absolute source root to link correctly to the previous root
+    prevRoot=$(realpath $sourceRoot)
+
+    # Update the source root to the devkit_client package
+    sourceRoot="$sourceRoot/client"
+
+    # Link the setup script into the new source root
+    ln -s $prevRoot/setup/shiv-linux-setup.py $sourceRoot/setup.py
+  '';
+
+  postInstall = ''
+    mkdir -p $out/bin
+
+    # These are various assets like scripts that steamos-devkit will copy to the remote device
+    cp -R ./devkit-utils $out/${python3.sitePackages}/devkit-utils
+
+    # writeScript + symlink will be ignored by wrapPythonPrograms
+    # Copying it is undesirable too, just write it directly to a script instead
+    cat << EOF > $out/bin/steamos-devkit
+    ${steamos-devkit-script}
+    EOF
+    chmod +x $out/bin/steamos-devkit
+  '';
+
+  # There are no checks for steamos-devkit
+  doCheck = false;
+  pythonImportsCheck = [ "devkit_client" ];
+
+  desktopItems = [
+    (makeDesktopItem {
+      name = "SteamOS-Devkit";
+      exec = "steamos-devkit";
+      desktopName = "SteamOS Devkit Client";
+    })
+  ];
+
+  meta = with lib; {
+    description = "SteamOS Devkit Client";
+    homepage = "https://gitlab.steamos.cloud/devkit/steamos-devkit";
+    license = licenses.mit;
+    maintainers = with maintainers; [ myaats ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 86313b938dfa..0ae0d6abf4f7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -25869,6 +25869,8 @@ with pkgs;
 
   statifier = callPackage ../os-specific/linux/statifier { };
 
+  steamos-devkit = callPackage ../development/tools/steamos-devkit { };
+
   swiftdefaultapps = callPackage ../os-specific/darwin/swiftdefaultapps { };
 
   sysdig = callPackage ../os-specific/linux/sysdig {
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 16b51fedb676..647bef6357fd 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -10253,6 +10253,8 @@ self: super: with self; {
 
   sievelib = callPackage ../development/python-modules/sievelib { };
 
+  signalslot = callPackage ../development/python-modules/signalslot { };
+
   signedjson = callPackage ../development/python-modules/signedjson { };
 
   sigrok = callPackage ../development/python-modules/sigrok { };
@@ -11889,6 +11891,8 @@ self: super: with self; {
 
   wcwidth = callPackage ../development/python-modules/wcwidth { };
 
+  weakrefmethod = callPackage ../development/python-modules/weakrefmethod { };
+
   weasyprint = callPackage ../development/python-modules/weasyprint { };
 
   web3 = callPackage ../development/python-modules/web3 { };