diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index fadc882f81f9..e803c5ceb4d3 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -6350,6 +6350,12 @@
     githubId = 37185887;
     name = "Calvin Kim";
   };
+  keldu = {
+    email = "mail@keldu.de";
+    github = "keldu";
+    githubId = 15373888;
+    name = "Claudius Holeksa";
+  };
   kennyballou = {
     email = "kb@devnulllabs.io";
     github = "kennyballou";
diff --git a/pkgs/tools/audio/midimonster/default.nix b/pkgs/tools/audio/midimonster/default.nix
new file mode 100644
index 000000000000..3792d997aa00
--- /dev/null
+++ b/pkgs/tools/audio/midimonster/default.nix
@@ -0,0 +1,57 @@
+{ lib
+, stdenv
+, fetchurl
+, zlib
+, fetchFromGitHub
+, gnumake
+, gcc
+, pkg-config
+, lua5_4
+, openssl
+, jack1
+, python3
+, alsa-lib
+, ncurses
+, libevdev
+}:
+
+stdenv.mkDerivation rec {
+  pname = "midimonster";
+  version = "0.6.0";
+
+  buildInputs = [pkg-config gnumake gcc lua5_4 openssl jack1 python3 alsa-lib ncurses libevdev];
+
+  src = fetchFromGitHub {
+    repo = "midimonster";
+    owner = "cbdevnet";
+    rev = "f16f7db86662fcdbf45b6373257c90c824b0b4b0";
+    sha256 = "131zs4j9asq9xl72cbyi463xpkj064ca1s7i77q5jrwqysgy52sp";
+};
+
+  doCheck = true;
+  enableParallelBuilding = true;
+
+  outputs = ["out" "man"];
+
+  buildPhase = ''
+    PLUGINS=$out/lib/midimonster make all
+  '';
+
+  installPhase = ''
+    PREFIX=$out make install
+
+    mkdir -p "$man/share/man/man1"
+    cp assets/midimonster.1 "$man/share/man/man1"
+
+    mkdir -p "$out/share/icons/hicolor/scalable/apps"
+    cp assets/MIDIMonster.svg "$out/share/icons/hicolor/scalable/apps/"
+  '';
+
+  meta = with lib; {
+    homepage = "https://midimonster.net";
+    description = "Multi-protocol translation tool";
+    license = licenses.bsd2;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [keldu];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fbcef04003e0..2e5feed24382 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1077,6 +1077,8 @@ with pkgs;
 
   metapixel = callPackage ../tools/graphics/metapixel { };
 
+  midimonster = callPackage ../tools/audio/midimonster { };
+
   pferd = callPackage ../tools/misc/pferd {};
 
   qFlipper = libsForQt515.callPackage ../tools/misc/qflipper { };