diff --git a/pkgs/by-name/au/audacity/audacity-deployment-target.patch b/pkgs/by-name/au/audacity/audacity-deployment-target.patch
new file mode 100644
index 000000000000..5a95fd6f86b6
--- /dev/null
+++ b/pkgs/by-name/au/audacity/audacity-deployment-target.patch
@@ -0,0 +1,20 @@
+diff --git a/buildscripts/cmake/SetupBuildEnvironment.cmake b/buildscripts/cmake/SetupBuildEnvironment.cmake
+index d45a7728590..c4c77d48198 100644
+--- a/buildscripts/cmake/SetupBuildEnvironment.cmake
++++ b/buildscripts/cmake/SetupBuildEnvironment.cmake
+@@ -159,7 +159,13 @@
+         endif()
+     endif() #MUE_COMPILE_QT5_COMPAT
+ 
+-    set(MACOSX_DEPLOYMENT_TARGET 10.15)
+-    set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15)
++    if (NOT CMAKE_OSX_DEPLOYMENT_TARGET)
++        if (NOT "$ENV{MACOSX_DEPLOYMENT_TARGET}" STREQUAL "")
++            set(CMAKE_OSX_DEPLOYMENT_TARGET "$ENV{MACOSX_DEPLOYMENT_TARGET}")
++        else()
++            set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15)
++        endif()
++    endif()
++    set(MACOSX_DEPLOYMENT_TARGET "${CMAKE_OSX_DEPLOYMENT_TARGET}")
+ endif(OS_IS_MAC)
+ 
diff --git a/pkgs/by-name/au/audacity/macdeployqt-extra-options.patch b/pkgs/by-name/au/audacity/macdeployqt-extra-options.patch
new file mode 100644
index 000000000000..1bc7672fc481
--- /dev/null
+++ b/pkgs/by-name/au/audacity/macdeployqt-extra-options.patch
@@ -0,0 +1,25 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 17e3e15e4de..49d869a6777 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -62,6 +62,8 @@
+ 
+ set(AU4_REVISION "" CACHE STRING "Build revision")
+ 
++set(AU4_MACDEPLOYQT_EXTRA_OPTIONS "" CACHE STRING "Semicolon-separated extra arguments for macdeployqt")
++
+ # Modules (alphabetical order please)
+ option(AU_BUILD_APPSHELL_MODULE "Build appshell module" ON)
+ option(AU_BUILD_APPSHELL_TESTS "Build appshell tests" ${MUSE_ENABLE_UNIT_TESTS})
+diff --git a/src/app/CMakeLists.txt b/src/app/CMakeLists.txt
+index a653a0b4cda..1ee5a5b31eb 100644
+--- a/src/app/CMakeLists.txt
++++ b/src/app/CMakeLists.txt
+@@ -418,6 +418,7 @@
+         DEPLOY_TOOL_OPTIONS
+             -qmldir=${PROJECT_SOURCE_DIR}/src
+             -qmldir=${PROJECT_SOURCE_DIR}/muse/framework
++            ${AU4_MACDEPLOYQT_EXTRA_OPTIONS}
+     )
+     install(SCRIPT ${deploy_script})
+ 
diff --git a/pkgs/by-name/au/audacity/muse-deps-wxwidgets-frameworks.patch b/pkgs/by-name/au/audacity/muse-deps-wxwidgets-frameworks.patch
new file mode 100644
index 000000000000..c4bd00ce8eda
--- /dev/null
+++ b/pkgs/by-name/au/audacity/muse-deps-wxwidgets-frameworks.patch
@@ -0,0 +1,13 @@
+diff --git a/muse_deps/recipes/wxwidgets/meta.cmake b/muse_deps/recipes/wxwidgets/meta.cmake
+index b30de19..3d18391 100644
+--- a/muse_deps/recipes/wxwidgets/meta.cmake
++++ b/muse_deps/recipes/wxwidgets/meta.cmake
+@@ -35,6 +35,8 @@
+     endif()
+     separate_arguments(wx_cxx_list NATIVE_COMMAND "${wx_cxx}")
+     separate_arguments(wx_libs_list NATIVE_COMMAND "${wx_libs}")
++    # Keep framework flags and names together as a single CMake link item.
++    string(REGEX REPLACE "-framework;([^;]+)" "-framework \\1" wx_libs_list "${wx_libs_list}")
+ 
+     set(incs "")
+     set(opts "")
diff --git a/pkgs/by-name/au/audacity/muse-framework-deployment-target.patch b/pkgs/by-name/au/audacity/muse-framework-deployment-target.patch
new file mode 100644
index 000000000000..27d15d5739b3
--- /dev/null
+++ b/pkgs/by-name/au/audacity/muse-framework-deployment-target.patch
@@ -0,0 +1,21 @@
+diff --git a/muse/buildscripts/cmake/SetupBuildEnvironment.cmake b/muse/buildscripts/cmake/SetupBuildEnvironment.cmake
+index 994b4ab30a..71a910bcfa 100644
+--- a/muse/buildscripts/cmake/SetupBuildEnvironment.cmake
++++ b/muse/buildscripts/cmake/SetupBuildEnvironment.cmake
+@@ -63,8 +63,14 @@
+ 
+ # Mac-specific
+ if(OS_IS_MAC)
+-    set(MACOSX_DEPLOYMENT_TARGET 10.15.4)
+-    set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15.4)
++    if(NOT CMAKE_OSX_DEPLOYMENT_TARGET)
++        if(NOT "$ENV{MACOSX_DEPLOYMENT_TARGET}" STREQUAL "")
++            set(CMAKE_OSX_DEPLOYMENT_TARGET "$ENV{MACOSX_DEPLOYMENT_TARGET}")
++        else()
++            set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15.4)
++        endif()
++    endif()
++    set(MACOSX_DEPLOYMENT_TARGET "${CMAKE_OSX_DEPLOYMENT_TARGET}")
+ endif(OS_IS_MAC)
+ 
+ # MSVC-specific
diff --git a/pkgs/by-name/au/audacity/package.nix b/pkgs/by-name/au/audacity/package.nix
index 9b096104c63d..aa0c40ef7d60 100644
--- a/pkgs/by-name/au/audacity/package.nix
+++ b/pkgs/by-name/au/audacity/package.nix
@@ -1,212 +1,190 @@
 {
-  stdenv,
   lib,
-  fetchFromGitHub,
+  stdenv,
+  fetchurl,
+
+  # nativeBuildInputs
   cmake,
-  makeWrapper,
-  wrapGAppsHook3,
+  git,
+  linuxHeaders,
+  ninja,
   pkg-config,
   python3,
-  gettext,
-  file,
-  libvorbis,
-  libmad,
+  qt6,
+  wrapGAppsHook3,
+
+  # buildInputs
+  alsa-lib,
+  expat,
+  ffmpeg,
+  flac,
+  freetype,
+  harfbuzz,
+  lame,
   libjack2,
-  lv2,
-  lilv,
+  libogg,
+  libopus,
+  libsndfile,
+  libvorbis,
   mpg123,
   opusfile,
-  rapidjson,
-  serd,
-  sord,
-  sqlite,
-  sratom,
-  suil,
-  libsndfile,
-  soxr,
-  flac,
-  lame,
-  twolame,
-  expat,
-  libid3tag,
-  libopus,
-  libuuid,
-  ffmpeg,
-  soundtouch,
-  portaudio, # given up fighting their portaudio.patch?
-  portmidi,
-  linuxHeaders,
-  alsa-lib,
-  at-spi2-core,
-  dbus,
-  libepoxy,
-  libxdmcp,
-  libxtst,
-  libpthread-stubs,
-  libsbsms_2_3_0,
-  libselinux,
-  libsepol,
-  libxkbcommon,
-  util-linux,
+  portaudio,
+  pugixml,
+  utf8cpp,
   wavpack,
   wxwidgets_3_2,
-  gtk3,
-  libpng,
-  libjpeg,
+  zlib,
 }:
-
-# TODO
-# 1. detach sbsms
-
+let
+  wxwidgets = wxwidgets_3_2.override { withWebKit = false; };
+in
 stdenv.mkDerivation (finalAttrs: {
   pname = "audacity";
-  version = "3.7.9";
+  version = "4.0.0";
 
-  src = fetchFromGitHub {
-    owner = "audacity";
-    repo = "audacity";
-    rev = "Audacity-${finalAttrs.version}";
-    hash = "sha256-q/5LPL76GPEFGRxTZcuxmLuq15fwbw2Mak/q2RObghk=";
+  src = fetchurl {
+    url = "https://github.com/audacity/audacity/releases/download/Audacity-${finalAttrs.version}/audacity-sources-${finalAttrs.version}.tar.xz";
+    hash = "sha256-spB2+Z+l0vUi0AHbRyqJbbgfnv/v0VlIyUBXF1OFgFg=";
   };
 
   patches = [
-    # Introduced by https://github.com/Tencent/rapidjson/commit/b1c0c2843fcb2aca9ecc650fc035c57ffc13697c#diff-2f1bcf2729ff7c408adb0c2cc2cfa01602bd5646b05b3e4bc7e46b606035d249R21
-    ./rapidjson.patch
+    # https://github.com/musescore/muse_deps/pull/47
+    ./muse-deps-wxwidgets-frameworks.patch
+    # https://github.com/audacity/audacity/pull/12021
+    ./audacity-deployment-target.patch
+    # https://github.com/musescore/muse_framework/pull/278
+    ./muse-framework-deployment-target.patch
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isDarwin [
+    # https://github.com/audacity/audacity/pull/12056
+    ./macdeployqt-extra-options.patch
   ];
 
-  postPatch = ''
-    mkdir src/private
-    substituteInPlace scripts/build/macOS/fix_bundle.py \
-      --replace-fail "path.startswith('/usr/lib/')" "path.startswith('/usr/lib/') or path.startswith('${builtins.storeDir}')"
-  ''
-  + lib.optionalString stdenv.hostPlatform.isLinux ''
-    substituteInPlace libraries/lib-files/FileNames.cpp \
+  postPatch = lib.optionalString stdenv.hostPlatform.isLinux ''
+    substituteInPlace au3/libraries/au3-files/FileNames.cpp \
       --replace-fail /usr/include/linux/magic.h ${linuxHeaders}/include/linux/magic.h
   '';
 
   nativeBuildInputs = [
     cmake
-    gettext
+    git
+    ninja
     pkg-config
     python3
-    makeWrapper
-    wrapGAppsHook3
+    qt6.qttools
+    qt6.wrapQtAppsHook
+    wxwidgets
   ]
   ++ lib.optionals stdenv.hostPlatform.isLinux [
     linuxHeaders
+    wrapGAppsHook3
   ];
 
   buildInputs = [
     expat
     ffmpeg
-    file
     flac
-    gtk3
+    freetype
+    harfbuzz
     lame
-    libid3tag
     libjack2
-    libmad
+    libogg
     libopus
-    libsbsms_2_3_0
     libsndfile
     libvorbis
-    lilv
-    lv2
     mpg123
     opusfile
-    portmidi
-    rapidjson
-    serd
-    sord
-    soundtouch
-    soxr
-    sqlite
-    sratom
-    suil
-    twolame
     portaudio
+    pugixml
+    qt6.qt5compat
+    qt6.qtbase
+    qt6.qtdeclarative
+    qt6.qtnetworkauth
+    qt6.qtshadertools
+    qt6.qtsvg
+    utf8cpp
     wavpack
-    wxwidgets_3_2
+    wxwidgets
+    zlib
   ]
   ++ lib.optionals stdenv.hostPlatform.isLinux [
-    alsa-lib # for portaudio
-    at-spi2-core
-    dbus
-    libepoxy
-    libxdmcp
-    libxtst
-    libpthread-stubs
-    libxkbcommon
-    libselinux
-    libsepol
-    libuuid
-    util-linux
-  ]
-  ++ lib.optionals stdenv.hostPlatform.isDarwin [
-    libpng
-    libjpeg
+    alsa-lib
+    qt6.qtwayland
   ];
 
   cmakeFlags = [
-    "-DAUDACITY_BUILD_LEVEL=2"
-    "-DAUDACITY_REV_LONG=nixpkgs"
-    "-DAUDACITY_REV_TIME=nixpkgs"
-    "-DDISABLE_DYNAMIC_LOADING_FFMPEG=ON"
-    "-Daudacity_conan_enabled=Off"
-    "-Daudacity_use_ffmpeg=loaded"
-    "-Daudacity_has_vst3=Off"
-    "-Daudacity_has_crashreports=Off"
-
-    # RPATH of binary /nix/store/.../bin/... contains a forbidden reference to /build/
-    "-DCMAKE_SKIP_BUILD_RPATH=ON"
-
-    # Fix duplicate store paths
-    "-DCMAKE_INSTALL_LIBDIR=lib"
+    (lib.cmakeFeature "AU4_BUILD_MODE" "release")
+    (lib.cmakeFeature "EXTDEPS_OVERRIDE_ALL" "SYSTEM")
+    (lib.cmakeBool "MUSE_COMPILE_USE_CCACHE" false)
+    (lib.cmakeBool "MUSE_ENABLE_UNIT_TESTS" finalAttrs.finalPackage.doCheck)
+    (lib.cmakeBool "MUSE_MODULE_DIAGNOSTICS_CRASHPAD_CLIENT" false)
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isDarwin [
+    (lib.cmakeFeature "CMAKE_OSX_ARCHITECTURES" stdenv.hostPlatform.darwinArch)
+    (lib.cmakeFeature "CMAKE_OSX_DEPLOYMENT_TARGET" stdenv.hostPlatform.darwinMinVersion)
+    # Nix performs stripping after deployment.
+    (lib.cmakeFeature "AU4_MACDEPLOYQT_EXTRA_OPTIONS" "-no-strip")
   ];
 
-  # [ 57%] Generating LightThemeAsCeeCode.h...
-  # ../../utils/image-compiler: error while loading shared libraries:
-  # lib-theme.so: cannot open shared object file: No such file or directory
-  preBuild = ''
-    export LD_LIBRARY_PATH=$PWD/Release/lib/audacity
+  preConfigure = ''
+    cmakeFlagsArray+=("-DEXTDEPS_CACHE=$PWD/offline-deps")
   '';
 
-  doCheck = false; # Test fails
+  preInstall = lib.optionalString stdenv.hostPlatform.isDarwin ''
+    export NIX_QMLIMPORTSCANNER=${lib.getBin qt6.qtdeclarative}/libexec/qmlimportscanner
+    export QML2_IMPORT_PATH=
+    for input in ${lib.escapeShellArgs finalAttrs.buildInputs}; do
+      addToSearchPath QML2_IMPORT_PATH "$input/${qt6.qtbase.qtQmlPrefix}"
+    done
+  '';
+
+  postInstall = lib.optionalString stdenv.hostPlatform.isDarwin ''
+    mkdir -p "$out/Applications"
+    mv "$out/audacity.app" "$out/Applications/"
+  '';
+
+  qtWrapperArgs = [
+    "--prefix"
+    "${lib.optionalString stdenv.hostPlatform.isDarwin "DY"}LD_LIBRARY_PATH"
+    ":"
+    (lib.makeLibraryPath [
+      ffmpeg
+      libjack2
+    ])
+  ];
+
+  preFixup = lib.optionalString stdenv.hostPlatform.isLinux ''
+    qtWrapperArgs+=("''${gappsWrapperArgs[@]}")
+  '';
+
+  postFixup = lib.optionalString stdenv.hostPlatform.isDarwin ''
+    # Use bundled Qt plugins, not a second Qt installation from the store.
+    wrapProgram "$out/Applications/audacity.app/Contents/MacOS/audacity" \
+      ${lib.escapeShellArgs finalAttrs.qtWrapperArgs} \
+      --unset QT_PLUGIN_PATH \
+      --unset NIXPKGS_QT6_QML_IMPORT_PATH \
+      --unset QML2_IMPORT_PATH \
+      --unset QML_IMPORT_PATH
+    mkdir -p "$out/bin"
+    makeWrapper "$out/Applications/audacity.app/Contents/MacOS/audacity" "$out/bin/audacity"
+  '';
 
   dontWrapGApps = true;
+  # Automatic scanning would wrap bundled framework libraries as executables.
+  dontWrapQtApps = stdenv.hostPlatform.isDarwin;
 
-  # Replace audacity's wrapper, to:
-  # - Put it in the right place; it shouldn't be in "$out/audacity"
-  # - Add the ffmpeg dynamic dependency
-  # - Use Xwayland by default on Wayland. See https://github.com/audacity/audacity/pull/5977
-  postFixup =
-    lib.optionalString stdenv.hostPlatform.isLinux ''
-      wrapProgram "$out/bin/audacity" \
-        "''${gappsWrapperArgs[@]}" \
-        --prefix LD_LIBRARY_PATH : "$out/lib/audacity":${lib.makeLibraryPath [ ffmpeg ]} \
-        --suffix AUDACITY_MODULES_PATH : "$out/lib/audacity/modules" \
-        --suffix AUDACITY_PATH : "$out/share/audacity" \
-        --set-default GDK_BACKEND x11
-    ''
-    + lib.optionalString stdenv.hostPlatform.isDarwin ''
-      mkdir -p $out/{Applications,bin}
-      mv $out/Audacity.app $out/Applications/
-      makeWrapper $out/Applications/Audacity.app/Contents/MacOS/Audacity $out/bin/audacity
-    '';
+  strictDeps = true;
+  __structuredAttrs = true;
 
   meta = {
     description = "Sound editor with graphical UI";
     mainProgram = "audacity";
     homepage = "https://www.audacityteam.org";
-    changelog = "https://github.com/audacity/audacity/releases";
-    license = with lib.licenses; [
-      gpl2Plus
-      # Must be GPL3 when building with "technologies that require it,
-      # such as the VST3 audio plugin interface".
-      # https://github.com/audacity/audacity/discussions/2142.
-      gpl3
-      # Documentation.
-      cc-by-30
+    changelog = "https://github.com/audacity/audacity/releases/tag/Audacity-${finalAttrs.version}";
+    license = lib.licenses.AND [
+      lib.licenses.gpl2Plus
+      lib.licenses.gpl3Only
+      lib.licenses.cc-by-30
     ];
     maintainers = with lib.maintainers; [
       veprbl
diff --git a/pkgs/by-name/au/audacity_3/package.nix b/pkgs/by-name/au/audacity_3/package.nix
new file mode 100644
index 000000000000..753bb70f7ec6
--- /dev/null
+++ b/pkgs/by-name/au/audacity_3/package.nix
@@ -0,0 +1,221 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  cmake,
+  makeWrapper,
+  wrapGAppsHook3,
+  pkg-config,
+  python3,
+  gettext,
+  file,
+  libvorbis,
+  libmad,
+  libjack2,
+  lv2,
+  lilv,
+  mpg123,
+  opusfile,
+  rapidjson,
+  serd,
+  sord,
+  sqlite,
+  sratom,
+  suil,
+  libsndfile,
+  soxr,
+  flac,
+  lame,
+  twolame,
+  expat,
+  libid3tag,
+  libopus,
+  libuuid,
+  ffmpeg,
+  soundtouch,
+  portaudio, # given up fighting their portaudio.patch?
+  portmidi,
+  linuxHeaders,
+  alsa-lib,
+  at-spi2-core,
+  dbus,
+  libepoxy,
+  libxdmcp,
+  libxtst,
+  libpthread-stubs,
+  libsbsms_2_3_0,
+  libselinux,
+  libsepol,
+  libxkbcommon,
+  util-linux,
+  wavpack,
+  wxwidgets_3_2,
+  gtk3,
+  libpng,
+  libjpeg,
+}:
+
+# TODO
+# 1. detach sbsms
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "audacity";
+  version = "3.7.9";
+
+  src = fetchFromGitHub {
+    owner = "audacity";
+    repo = "audacity";
+    rev = "Audacity-${finalAttrs.version}";
+    hash = "sha256-q/5LPL76GPEFGRxTZcuxmLuq15fwbw2Mak/q2RObghk=";
+  };
+
+  patches = [
+    # Introduced by https://github.com/Tencent/rapidjson/commit/b1c0c2843fcb2aca9ecc650fc035c57ffc13697c#diff-2f1bcf2729ff7c408adb0c2cc2cfa01602bd5646b05b3e4bc7e46b606035d249R21
+    ./rapidjson.patch
+  ];
+
+  postPatch = ''
+    mkdir src/private
+    substituteInPlace scripts/build/macOS/fix_bundle.py \
+      --replace-fail "path.startswith('/usr/lib/')" "path.startswith('/usr/lib/') or path.startswith('${builtins.storeDir}')"
+  ''
+  + lib.optionalString stdenv.hostPlatform.isLinux ''
+    substituteInPlace libraries/lib-files/FileNames.cpp \
+      --replace-fail /usr/include/linux/magic.h ${linuxHeaders}/include/linux/magic.h
+  '';
+
+  nativeBuildInputs = [
+    cmake
+    gettext
+    pkg-config
+    python3
+    makeWrapper
+    wrapGAppsHook3
+    wxwidgets_3_2
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isLinux [
+    linuxHeaders
+  ];
+
+  buildInputs = [
+    expat
+    ffmpeg
+    file
+    flac
+    gtk3
+    lame
+    libid3tag
+    libjack2
+    libmad
+    libopus
+    libsbsms_2_3_0
+    libsndfile
+    libvorbis
+    lilv
+    lv2
+    mpg123
+    opusfile
+    portmidi
+    rapidjson
+    serd
+    sord
+    soundtouch
+    soxr
+    sqlite
+    sratom
+    suil
+    twolame
+    portaudio
+    wavpack
+    wxwidgets_3_2
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isLinux [
+    alsa-lib # for portaudio
+    at-spi2-core
+    dbus
+    libepoxy
+    libxdmcp
+    libxtst
+    libpthread-stubs
+    libxkbcommon
+    libselinux
+    libsepol
+    libuuid
+    util-linux
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isDarwin [
+    libpng
+    libjpeg
+  ];
+
+  cmakeFlags = [
+    "-DAUDACITY_BUILD_LEVEL=2"
+    "-DAUDACITY_REV_LONG=nixpkgs"
+    "-DAUDACITY_REV_TIME=nixpkgs"
+    "-DDISABLE_DYNAMIC_LOADING_FFMPEG=ON"
+    "-Daudacity_conan_enabled=Off"
+    "-Daudacity_use_ffmpeg=loaded"
+    "-Daudacity_has_vst3=Off"
+    "-Daudacity_has_crashreports=Off"
+
+    # RPATH of binary /nix/store/.../bin/... contains a forbidden reference to /build/
+    "-DCMAKE_SKIP_BUILD_RPATH=ON"
+
+    # Fix duplicate store paths
+    "-DCMAKE_INSTALL_LIBDIR=lib"
+  ];
+
+  # [ 57%] Generating LightThemeAsCeeCode.h...
+  # ../../utils/image-compiler: error while loading shared libraries:
+  # lib-theme.so: cannot open shared object file: No such file or directory
+  preBuild = ''
+    export LD_LIBRARY_PATH=$PWD/Release/lib/audacity
+  '';
+
+  doCheck = false; # Test fails
+
+  dontWrapGApps = true;
+
+  strictDeps = true;
+  __structuredAttrs = true;
+
+  # Replace audacity's wrapper, to:
+  # - Put it in the right place; it shouldn't be in "$out/audacity"
+  # - Add the ffmpeg dynamic dependency
+  # - Use Xwayland by default on Wayland. See https://github.com/audacity/audacity/pull/5977
+  postFixup =
+    lib.optionalString stdenv.hostPlatform.isLinux ''
+      wrapProgram "$out/bin/audacity" \
+        "''${gappsWrapperArgs[@]}" \
+        --prefix LD_LIBRARY_PATH : "$out/lib/audacity":${lib.makeLibraryPath [ ffmpeg ]} \
+        --suffix AUDACITY_MODULES_PATH : "$out/lib/audacity/modules" \
+        --suffix AUDACITY_PATH : "$out/share/audacity" \
+        --set-default GDK_BACKEND x11
+    ''
+    + lib.optionalString stdenv.hostPlatform.isDarwin ''
+      mkdir -p $out/{Applications,bin}
+      mv $out/Audacity.app $out/Applications/
+      makeWrapper $out/Applications/Audacity.app/Contents/MacOS/Audacity $out/bin/audacity
+    '';
+
+  meta = {
+    description = "Sound editor with graphical UI";
+    mainProgram = "audacity";
+    homepage = "https://www.audacityteam.org";
+    changelog = "https://github.com/audacity/audacity/releases";
+    license = with lib.licenses; [
+      gpl2Plus
+      # Must be GPL3 when building with "technologies that require it,
+      # such as the VST3 audio plugin interface".
+      # https://github.com/audacity/audacity/discussions/2142.
+      gpl3
+      # Documentation.
+      cc-by-30
+    ];
+    maintainers = with lib.maintainers; [
+      veprbl
+      wegank
+    ];
+    platforms = lib.platforms.unix;
+  };
+})
diff --git a/pkgs/by-name/au/audacity/rapidjson.patch b/pkgs/by-name/au/audacity_3/rapidjson.patch
similarity index 100%
rename from pkgs/by-name/au/audacity/rapidjson.patch
rename to pkgs/by-name/au/audacity_3/rapidjson.patch
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 417bbf67e2d8..bf1ef46d3b4e 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -360,6 +360,7 @@ mapAliases {
   astronomer = throw "'astronomer' has been removed, as it has been unmaintained upstream since August 2020"; # Added 2026-01-01
   atlassian-cli = appfire-cli; # Added 2025-09-29
   ats = throw "'ats' has been removed as it is unmaintained for 10 years and broken"; # Added 2025-05-17
+  audacity_4 = audacity; # Added 2026-09-05
   audio-recorder = throw "'audio-recorder' has been removed, as it is unmaintained upstream and broken. Consider using 'gnome-sound-recorder' or 'reco' instead"; # Added 2026-01-02
   august = throw "'august' has been removed, as it has been unmaintained since august 2023"; # Added 2025-12-25
   AusweisApp2 = throw "'AusweisApp2' has been renamed to/replaced by 'ausweisapp'"; # Converted to throw 2025-10-27