diff --git a/flake.nix b/flake.nix
index f8ded1e..dbe74f4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -114,7 +114,16 @@
         checks.formatting = treefmtEval.config.build.check inputs.self;
 
         # nix {run,shell,build}
-        legacyPackages = import ./pkgs pkgs;
+        # NOTE: 301: All packages are migrated to `github:Guanran928/nur-packages`,
+        #       only keeping some packages that only fits for personal use.
+        legacyPackages =
+          pkgs.lib.packagesFromDirectoryRecursive {
+            inherit (pkgs) callPackage;
+            directory = ./pkgs;
+          }
+          // {
+            background = pkgs.nixos-artwork.wallpapers.nineish-dark-gray.src;
+          };
 
         # nix develop
         devShells.default = pkgs.mkShellNoCC {
diff --git a/home/default.nix b/home/default.nix
index 7cb1751..ef30aa8 100644
--- a/home/default.nix
+++ b/home/default.nix
@@ -1,4 +1,9 @@
-{ lib, pkgs, ... }:
+{
+  lib,
+  inputs,
+  pkgs,
+  ...
+}:
 {
   home = {
     username = "guanranwang";
@@ -25,24 +30,27 @@
     udiskie.enable = true;
   };
 
-  home.packages = with pkgs; [
-    dconf-editor
-    fastfetch
-    fd
-    file-roller
-    fractal
-    gnome-calculator
-    hyperfine
-    libnotify
-    loupe
-    pwvucontrol
-    seahorse
-    wl-clipboard
+  home.packages =
+    (with pkgs; [
+      dconf-editor
+      fastfetch
+      fd
+      file-roller
+      fractal
+      gnome-calculator
+      hyperfine
+      libnotify
+      loupe
+      pwvucontrol
+      seahorse
+      wl-clipboard
 
-    mumble
-    osu-lazer-bin
-    prismlauncher
-  ];
+      osu-lazer-bin
+      prismlauncher
+    ])
+    ++ (with inputs.self.legacyPackages.${pkgs.stdenv.hostPlatform.system}; [
+      mumble-git
+    ]);
 
   home.sessionVariables = {
     # https://github.com/ppy/osu-framework/pull/6292
diff --git a/pkgs/default.nix b/pkgs/default.nix
deleted file mode 100644
index 51ed0ea..0000000
--- a/pkgs/default.nix
+++ /dev/null
@@ -1,3 +0,0 @@
-# NOTE: 301: All packages are migrated to `github:Guanran928/nur-packages`,
-#       only keeping some packages that only fits for personal use.
-pkgs: { background = pkgs.nixos-artwork.wallpapers.nineish-dark-gray.src; }
diff --git a/pkgs/mumble-git/package.nix b/pkgs/mumble-git/package.nix
new file mode 100644
index 0000000..06b40b0
--- /dev/null
+++ b/pkgs/mumble-git/package.nix
@@ -0,0 +1,118 @@
+{
+  lib,
+  alsa-lib,
+  avahi-compat,
+  boost,
+  cmake,
+  fetchFromGitHub,
+  flac,
+  libjack2,
+  libogg,
+  libopus,
+  libpulseaudio,
+  libsndfile,
+  libvorbis,
+  nixosTests,
+  pipewire,
+  pkg-config,
+  poco,
+  protobuf,
+  python3,
+  qt6,
+  rnnoise,
+  speechd,
+  speex,
+  stdenv,
+  jackSupport ? false,
+  pipewireSupport ? true,
+  pulseSupport ? true,
+  speechdSupport ? false,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  pname = "mumble";
+  version = "1.5.634-unstable-2024-10-05";
+
+  src = fetchFromGitHub {
+    owner = "mumble-voip";
+    repo = "mumble";
+    rev = "cb01bfa5200fce53db68b769d05995c999e7cdd8";
+    hash = "sha256-Tf029ae+PfFPhchU45y96IJVeY9GPzWD2E+NprI/ZYk=";
+    fetchSubmodules = true;
+  };
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+    python3
+    qt6.wrapQtAppsHook
+    qt6.qttools
+  ];
+
+  buildInputs =
+    [
+      avahi-compat
+      boost
+      flac
+      libogg
+      libopus
+      libsndfile
+      libvorbis
+      poco
+      protobuf
+      qt6.qtsvg
+      rnnoise
+      speex
+    ]
+    ++ lib.optional (!jackSupport) alsa-lib
+    ++ lib.optional jackSupport libjack2
+    ++ lib.optional speechdSupport speechd
+    ++ lib.optional pulseSupport libpulseaudio
+    ++ lib.optional pipewireSupport pipewire;
+
+  env.NIX_CFLAGS_COMPILE = lib.optionalString speechdSupport "-I${speechd}/include/speech-dispatcher";
+
+  cmakeFlags =
+    [
+      "-D g15=OFF"
+      "-D server=OFF"
+      "-D bundled-celt=ON"
+      "-D bundled-opus=OFF"
+      "-D bundled-speex=OFF"
+      "-D bundle-qt-translations=OFF"
+      "-D update=OFF"
+      "-D overlay-xcompile=OFF"
+      "-D oss=OFF"
+      "-D warnings-as-errors=OFF" # conversion error workaround
+    ]
+    ++ lib.optional (!speechdSupport) "-D speechd=OFF"
+    ++ lib.optional (!pulseSupport) "-D pulseaudio=OFF"
+    ++ lib.optional (!pipewireSupport) "-D pipewire=OFF"
+    ++ lib.optional jackSupport "-D alsa=OFF -D jackaudio=ON";
+
+  preConfigure = ''
+    patchShebangs scripts
+  '';
+
+  postFixup = ''
+    wrapProgram $out/bin/mumble \
+      --prefix LD_LIBRARY_PATH : "${
+        lib.makeLibraryPath (
+          lib.optional pulseSupport libpulseaudio ++ lib.optional pipewireSupport pipewire
+        )
+      }"
+  '';
+
+  passthru.tests.connectivity = nixosTests.mumble;
+
+  meta = {
+    description = "Low-latency, high quality voice chat software";
+    homepage = "https://mumble.info";
+    license = lib.licenses.bsd3;
+    mainProgram = "mumble";
+    maintainers = with lib.maintainers; [
+      felixsinger
+      lilacious
+    ];
+    platforms = lib.platforms.linux;
+  };
+})