diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index e6db1ed91f82..7a5a6b616b34 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -12777,6 +12777,12 @@
     github = "jonocodes";
     githubId = 1310468;
   };
+  joostn = {
+    name = "Joost Nieuwenhuijse";
+    email = "joost@newhouse.nl";
+    github = "joostn";
+    githubId = 1309157;
+  };
   jopejoe1 = {
     email = "nixpkgs@missing.ninja";
     matrix = "@jopejoe1:matrix.org";
diff --git a/pkgs/by-name/sf/sfizz-ui/package.nix b/pkgs/by-name/sf/sfizz-ui/package.nix
new file mode 100644
index 000000000000..68b30ee36caa
--- /dev/null
+++ b/pkgs/by-name/sf/sfizz-ui/package.nix
@@ -0,0 +1,104 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  libjack2,
+  libsndfile,
+  xorg,
+  freetype,
+  libxkbcommon,
+  cairo,
+  glib,
+  zenity,
+  flac,
+  libogg,
+  libvorbis,
+  libopus,
+  cmake,
+  pango,
+  pkg-config,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "sfizz-ui";
+  version = "1.2.3";
+
+  src = fetchFromGitHub {
+    owner = "sfztools";
+    repo = "sfizz-ui";
+    rev = finalAttrs.version;
+    # Upstream requires submodules:
+    # VST3_SDK, vstgui4, sfzt_auwrapper and sfizz
+    fetchSubmodules = true;
+    hash = "sha256-Rf1i+tu91bqzO1wWJi7mw2BvbX9K0mDNPqsTUoqPd4U=";
+  };
+
+  buildInputs = [
+    cairo
+    flac
+    freetype
+    glib
+    libjack2
+    libogg
+    libopus
+    libsndfile
+    libvorbis
+    libxkbcommon
+    pango
+    xorg.libX11
+    xorg.libXau
+    xorg.libxcb
+    xorg.libXdmcp
+    xorg.xcbutil
+    xorg.xcbutilcursor
+    xorg.xcbutilimage
+    xorg.xcbutilkeysyms
+    xorg.xcbutilrenderutil
+    zenity
+  ];
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  cmakeFlags = [
+    (lib.cmakeBool "SFIZZ_TESTS" true)
+  ];
+
+  doCheck = true;
+
+  postPatch = ''
+    # Hard code zenity path (1/2):
+    substituteInPlace plugins/editor/src/editor/NativeHelpers.cpp \
+      --replace-fail \
+        'auto glibPath = g_find_program_in_path("zenity");' \
+        'auto glibPath = g_strdup("${lib.getExe zenity}");'
+
+    # Hard code zenity path (2/2):
+    substituteInPlace plugins/editor/external/vstgui4/vstgui/lib/platform/linux/x11fileselector.cpp \
+      --replace-fail \
+        'zenitypath = "zenity"' \
+        'zenitypath = "${lib.getExe zenity}"'
+
+    # Fix compilation error in GCC 14:
+    # https://github.com/sfztools/vstgui/pull/5
+    # https://github.com/steinbergmedia/vstgui/issues/324
+    # This has been upstreamed into master, remove when we switch to a newer upstream version.
+    substituteInPlace plugins/editor/external/vstgui4/vstgui/lib/finally.h \
+      --replace-fail \
+        "other.invoke (false);" \
+        "other.invoke = false;"
+  '';
+
+  meta = {
+    description = "SFZ based sampler, providing AU / LV2 / PD / VST3 plugins using the sfizz library";
+    homepage = "https://github.com/sfztools/sfizz-ui/";
+    license = lib.licenses.bsd2;
+    maintainers = with lib.maintainers; [
+      joostn
+      magnetophon
+    ];
+    platforms = lib.platforms.linux;
+  };
+})