diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index ce4a83b70a0f..c122623a6301 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -3619,6 +3619,12 @@
     email = "t@larkery.com";
     name = "Tom Hinton";
   };
+  hirenashah = {
+    email = "hiren@hiren.io";
+    github = "hirenashah";
+    githubId = 19825977;
+    name = "Hiren Shah";
+  };
   hjones2199 = {
     email = "hjones2199@gmail.com";
     github = "hjones2199";
@@ -3935,6 +3941,12 @@
     githubId = 2179419;
     name = "Arseniy Seroka";
   };
+  jakeisnt = {
+    name = "Jacob Chvatal";
+    email = "jake@isnt.online";
+    github = "jakeisnt";
+    githubId = 29869612;
+  };
   jakelogemann = {
     email = "jake.logemann@gmail.com";
     github = "jakelogemann";
@@ -9414,6 +9426,12 @@
       fingerprint = "4D23 ECDF 880D CADF 5ECA  4458 874B D6F9 16FA A742";
     }];
   };
+  vel = {
+    email = "llathasa@outlook.com";
+    github = "llathasa-veleth";
+    githubId = 61933599;
+    name = "vel";
+  };
   velovix = {
     email = "xaviosx@gmail.com";
     github = "velovix";
diff --git a/pkgs/applications/audio/mopidy/default.nix b/pkgs/applications/audio/mopidy/default.nix
index fc532482cba4..f4d4e416de40 100644
--- a/pkgs/applications/audio/mopidy/default.nix
+++ b/pkgs/applications/audio/mopidy/default.nix
@@ -14,9 +14,9 @@ let
 
     mopidy-gmusic = callPackage ./gmusic.nix { };
 
-    mopidy-local = callPackage ./local.nix { };
+    mopidy-iris = callPackage ./iris.nix { };
 
-    mopidy-spotify = callPackage ./spotify.nix { };
+    mopidy-local = callPackage ./local.nix { };
 
     mopidy-moped = callPackage ./moped.nix { };
 
@@ -26,20 +26,21 @@ let
 
     mopidy-mpris = callPackage ./mpris.nix { };
 
+    mopidy-musicbox-webclient = callPackage ./musicbox-webclient.nix { };
+
+    mopidy-scrobbler = callPackage ./scrobbler.nix { };
+
     mopidy-somafm = callPackage ./somafm.nix { };
 
-    mopidy-spotify-tunigo = callPackage ./spotify-tunigo.nix { };
-
-    mopidy-youtube = callPackage ./youtube.nix { };
-
     mopidy-soundcloud = callPackage ./soundcloud.nix { };
 
-    mopidy-musicbox-webclient = callPackage ./musicbox-webclient.nix { };
+    mopidy-spotify = callPackage ./spotify.nix { };
 
-    mopidy-iris = callPackage ./iris.nix { };
+    mopidy-spotify-tunigo = callPackage ./spotify-tunigo.nix { };
 
     mopidy-tunein = callPackage ./tunein.nix { };
 
+    mopidy-youtube = callPackage ./youtube.nix { };
   };
 
 in self
diff --git a/pkgs/applications/audio/mopidy/scrobbler.nix b/pkgs/applications/audio/mopidy/scrobbler.nix
new file mode 100644
index 000000000000..19c5a29c8a47
--- /dev/null
+++ b/pkgs/applications/audio/mopidy/scrobbler.nix
@@ -0,0 +1,24 @@
+{ stdenv, python3Packages, mopidy }:
+
+python3Packages.buildPythonApplication rec {
+  pname = "Mopidy-Scrobbler";
+  version = "2.0.1";
+
+  src = python3Packages.fetchPypi {
+    inherit pname version;
+    sha256 = "11vxgax4xgkggnq4fr1rh2rcvzspkkimck5p3h4phdj3qpnj0680";
+  };
+
+  propagatedBuildInputs = with python3Packages; [ mopidy pylast ];
+
+  # no tests implemented
+  doCheck = false;
+  pythonImportsCheck = [ "mopidy_scrobbler" ];
+
+  meta = with stdenv.lib; {
+    homepage = "https://github.com/mopidy/mopidy-scrobbler";
+    description = "Mopidy extension for scrobbling played tracks to Last.fm.";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ jakeisnt ];
+  };
+}
diff --git a/pkgs/applications/audio/plujain-ramp/default.nix b/pkgs/applications/audio/plujain-ramp/default.nix
new file mode 100644
index 000000000000..2523c5a56578
--- /dev/null
+++ b/pkgs/applications/audio/plujain-ramp/default.nix
@@ -0,0 +1,27 @@
+{ stdenv, fetchFromGitHub, lv2  }:
+
+stdenv.mkDerivation rec {
+  version = "v1.1.3";
+  pname = "plujain-ramp";
+
+  src = fetchFromGitHub {
+    owner = "Houston4444";
+    repo = "plujain-ramp";
+    rev = "1bc1fed211e140c7330d6035122234afe78e5257";
+    sha256 = "1k7qpr8c15d623c4zqxwdklp98amildh03cqsnqq5ia9ba8z3016";
+  };
+
+  buildInputs = [
+    lv2
+  ];
+
+  installFlags = [ "INSTALL_PATH=$(out)/lib/lv2" ];
+
+  meta = with stdenv.lib; {
+    description = "A mono rhythmic tremolo LV2 Audio Plugin";
+    homepage = "https://github.com/Houston4444/plujain-ramp";
+    license = licenses.gpl2Only;
+    platforms = platforms.linux;
+    maintainers = [ maintainers.hirenashah ];
+  };
+}
diff --git a/pkgs/applications/editors/mindforger/build.patch b/pkgs/applications/editors/mindforger/build.patch
index e2745cbce2d0..e9b9244f8dbd 100644
--- a/pkgs/applications/editors/mindforger/build.patch
+++ b/pkgs/applications/editors/mindforger/build.patch
@@ -1,17 +1,8 @@
 diff --git a/app/app.pro b/app/app.pro
-index 4d47065..a39a320 100644
+index 29f9d9e..15fd2ff 100644
 --- a/app/app.pro
 +++ b/app/app.pro
-@@ -18,6 +18,8 @@
- TARGET = mindforger
- TEMPLATE = app
- 
-+include(../config.pri)
-+
- QT += widgets
- 
- mfner {
-@@ -297,7 +299,7 @@ RESOURCES += \
+@@ -370,7 +370,7 @@ RESOURCES += \
  # See http://doc.qt.io/qt-5/qmake-advanced-usage.html
  
  binfile.files += mindforger
@@ -20,51 +11,11 @@ index 4d47065..a39a320 100644
  INSTALLS += binfile
  
  # ########################################
-diff --git a/config.pri b/config.pri
-new file mode 100644
-index 0000000..ce05df1
---- /dev/null
-+++ b/config.pri
-@@ -0,0 +1,3 @@
-+isEmpty(PREFIX) {
-+ PREFIX = /usr
-+}
-diff --git a/deps/discount/discount.pro b/deps/discount/discount.pro
-index a8dfe35..ec16468 100644
---- a/deps/discount/discount.pro
-+++ b/deps/discount/discount.pro
-@@ -5,6 +5,8 @@
- # Webpage: http://www.pell.portland.or.us/~orc/Code/discount/
- #
- 
-+include(../../config.pri)
-+
- QT       -= core gui
- 
- TARGET = discount
-@@ -46,7 +48,7 @@ unix:!symbian {
-     maemo5 {
-         target.path = /opt/usr/lib
-     } else {
--        target.path = /usr/lib
-+        target.path = $$PREFIX/lib
-     }
-     INSTALLS += target
- }
 diff --git a/mindforger.pro b/mindforger.pro
-index ae627f2..0953856 100644
+index bd4f21d..6bb2dbc 100644
 --- a/mindforger.pro
 +++ b/mindforger.pro
-@@ -32,6 +32,8 @@ TEMPLATE = subdirs
- 
- SUBDIRS = deps lib app
- 
-+include(config.pri)
-+
- # build dependencies
- lib.depends = deps
- app.depends = lib
-@@ -44,20 +46,20 @@ app.depends = lib
+@@ -43,20 +43,20 @@ app.depends = lib
  #IMPORTANT: binfile MUST be specified in app/app.pro (project next to/that builds binary)
  
  docfiles.files += doc/*
diff --git a/pkgs/applications/editors/mindforger/default.nix b/pkgs/applications/editors/mindforger/default.nix
index 82aa38c14499..f7e244342257 100644
--- a/pkgs/applications/editors/mindforger/default.nix
+++ b/pkgs/applications/editors/mindforger/default.nix
@@ -1,35 +1,34 @@
-{ mkDerivation, stdenv, fetchurl, qmake, qtbase, qtwebkit }:
+{ mkDerivation
+, cmark-gfm
+, fetchurl
+, qmake
+, qtbase
+, qtwebkit
+, stdenv
+, wrapGAppsHook
+}:
 
 mkDerivation rec {
   pname = "mindforger";
-  version = "1.48.2";
+  version = "1.52.0";
 
   src = fetchurl {
-    url = "https://github.com/dvorka/mindforger/releases/download/1.48.0/mindforger_${version}.tgz";
-    sha256 = "1wlrl8hpjcpnq098l3n2d1gbhbjylaj4z366zvssqvmafr72iyw4";
+    url = "https://github.com/dvorka/mindforger/releases/download/${version}/mindforger_${version}.tgz";
+    sha256 = "1pghsw8kwvjhg3jpmjs0n892h2l0pm0cs6ymi8b23fwk0kfj67rd";
   };
 
-  nativeBuildInputs = [ qmake ] ;
-  buildInputs = [ qtbase qtwebkit ] ;
+  nativeBuildInputs = [ qmake wrapGAppsHook ] ;
+  buildInputs = [ qtbase qtwebkit cmark-gfm ] ;
 
   doCheck = true;
 
-  enableParallelBuilding = true ;
-
   patches = [ ./build.patch ] ;
 
   postPatch = ''
-    substituteInPlace deps/discount/version.c.in --subst-var-by TABSTOP 4
+    substituteInPlace lib/src/install/installer.cpp --replace /usr "$out"
     substituteInPlace app/resources/gnome-shell/mindforger.desktop --replace /usr "$out"
   '';
 
-  preConfigure = ''
-    export AC_PATH="$PATH"
-    pushd deps/discount
-    ./configure.sh
-    popd
-  '';
-
   qmakeFlags = [ "-r mindforger.pro" "CONFIG+=mfnoccache" ] ;
 
   meta = with stdenv.lib; {
@@ -41,5 +40,6 @@ mkDerivation rec {
     homepage = "https://www.mindforger.com";
     license = licenses.gpl2Plus;
     platforms = platforms.all;
+    maintainers = with maintainers; [ cyplo ];
   };
 }
diff --git a/pkgs/applications/misc/koreader/default.nix b/pkgs/applications/misc/koreader/default.nix
index e870986a50aa..54d6a66fc088 100644
--- a/pkgs/applications/misc/koreader/default.nix
+++ b/pkgs/applications/misc/koreader/default.nix
@@ -46,7 +46,7 @@ in stdenv.mkDerivation rec {
     description =
       "An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android devices";
     platforms = intersectLists platforms.x86_64 platforms.linux;
-    license = licenses.agpl3;
+    license = licenses.agpl3Only;
     maintainers = with maintainers; [ contrun neonfuz];
   };
 }
diff --git a/pkgs/applications/version-management/gitoxide/default.nix b/pkgs/applications/version-management/gitoxide/default.nix
index bdb3e4825b92..f7a17e510f4b 100644
--- a/pkgs/applications/version-management/gitoxide/default.nix
+++ b/pkgs/applications/version-management/gitoxide/default.nix
@@ -1,4 +1,4 @@
-{ lib, rustPlatform, fetchFromGitHub, pkg-config, openssl }:
+{ stdenv, rustPlatform, fetchFromGitHub, pkg-config, openssl, Security }:
 
 rustPlatform.buildRustPackage rec {
   pname = "gitoxide";
@@ -14,14 +14,14 @@ rustPlatform.buildRustPackage rec {
   cargoSha256 = "mitUyf/z7EgjKzFy8ZER8Ceoe9tk6r0ctSYdDG87rIU=";
 
   nativeBuildInputs = [ pkg-config ];
-  buildInputs = [ openssl ];
+  buildInputs = [ openssl ]
+    ++ stdenv.lib.optionals stdenv.isDarwin [ Security ];
 
   # Needed to get openssl-sys to use pkgconfig.
   OPENSSL_NO_VENDOR = 1;
 
-  meta = with lib; {
-    description =
-      "A command-line application for interacting with git repositories";
+  meta = with stdenv.lib; {
+    description = "A command-line application for interacting with git repositories";
     homepage = "https://github.com/Byron/gitoxide";
     license = with licenses; [ mit /* or */ asl20 ];
     maintainers = [ maintainers.syberant ];
diff --git a/pkgs/development/python-modules/tensorflow/1/default.nix b/pkgs/development/python-modules/tensorflow/1/default.nix
index 599f809f8646..4dd30e4687ad 100644
--- a/pkgs/development/python-modules/tensorflow/1/default.nix
+++ b/pkgs/development/python-modules/tensorflow/1/default.nix
@@ -258,6 +258,11 @@ let
 
       substituteInPlace tensorflow/tools/pip_package/setup.py \
         --replace "numpy >= 1.16.0, < 1.19.0" "numpy >= 1.16.0"
+
+      # glibc 2.31+ does not have sys/sysctl.h
+      # see https://github.com/tensorflow/tensorflow/issues/45861
+      substituteInPlace third_party/hwloc/BUILD.bazel\
+        --replace "#define HAVE_SYS_SYSCTL_H 1" "#undef HAVE_SYS_SYSCTL_H"
     '';
 
     preConfigure = let
diff --git a/pkgs/games/freenukum/default.nix b/pkgs/games/freenukum/default.nix
new file mode 100644
index 000000000000..d428a0bf02f1
--- /dev/null
+++ b/pkgs/games/freenukum/default.nix
@@ -0,0 +1,72 @@
+{ stdenv
+, rustPlatform
+, fetchFromGitLab
+, makeDesktopItem
+, installShellFiles
+, dejavu_fonts
+, SDL2
+, SDL2_ttf
+}:
+let
+  pname = "freenukum";
+  description = "Clone of the original Duke Nukum 1 Jump'n Run game";
+
+  desktopItem = makeDesktopItem {
+    desktopName = pname;
+    name = pname;
+    exec = pname;
+    icon = pname;
+    terminal = "false";
+    comment = description;
+    type = "Application";
+    categories = "Game;ArcadeGame;ActionGame";
+    genericName = pname;
+    fileValidation = false;
+  };
+
+in
+rustPlatform.buildRustPackage rec {
+  inherit pname;
+  version = "0.3.5";
+
+  src = fetchFromGitLab {
+    owner = "silwol";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0yqfzh0c8fqk92q9kmidy15dc5li0ak1gbn3v7p3xw5fkrzf99gy";
+  };
+
+  cargoSha256 = "1mi98ccp4026gdc5x9jc6518zb7z4dplxl8vir78ivgdpifzz4pw";
+
+  nativeBuildInputs = [
+    installShellFiles
+  ];
+
+  buildInputs = [
+    SDL2
+    SDL2_ttf
+  ];
+
+  postPatch = ''
+    substituteInPlace src/graphics.rs \
+      --replace /usr $out
+  '';
+
+  postInstall = ''
+    mkdir -p $out/share/fonts/truetype/dejavu
+    ln -sf \
+      ${dejavu_fonts}/share/fonts/truetype/DejaVuSans.ttf \
+      $out/share/fonts/truetype/dejavu/DejaVuSans.ttf
+    mkdir -p $out/share/doc/freenukum
+    install -Dm644 README.md CHANGELOG.md COPYING $out/share/doc/freenukum/
+    installManPage doc/freenukum.6
+    install -Dm644 "${desktopItem}/share/applications/"* -t $out/share/applications/
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Clone of the original Duke Nukum 1 Jump'n Run game";
+    license = licenses.agpl3Plus;
+    maintainers = with maintainers; [ _0x4A6F ];
+    broken = stdenv.isDarwin;
+  };
+}
diff --git a/pkgs/tools/misc/betterdiscordctl/default.nix b/pkgs/tools/misc/betterdiscordctl/default.nix
new file mode 100644
index 000000000000..9d6159bda50e
--- /dev/null
+++ b/pkgs/tools/misc/betterdiscordctl/default.nix
@@ -0,0 +1,37 @@
+{ stdenv, fetchFromGitHub, fetchpatch }:
+
+stdenv.mkDerivation rec {
+  pname = "betterdiscordctl";
+  version = "1.7.0";
+
+  src = fetchFromGitHub {
+    owner = "bb010g";
+    repo = "betterdiscordctl";
+    rev = "v${version}";
+    sha256 = "0qpmm5l8jhm7k0kqblc0bnr9fl4b6z8iddhjar03bb4kqgr962fa";
+  };
+
+  patches = [
+    (fetchpatch { # Required till https://github.com/bb010g/betterdiscordctl/pull/67 is merged upstream.
+      url = "https://github.com/bb010g/betterdiscordctl/pull/67/commits/f1c7170fc2626d9aec4d244977b5a73c401aa1d4.patch";
+      sha256 = "003zqd9ljb9h674sjwjvvdfs7q4cw0p1ydg3lax132vb4vz9k0zi";
+    })
+  ];
+
+  preBuild = "sed -i 's/^nix=$/&yes/g;s/^DISABLE_UPGRADE=$/&yes/g' ./betterdiscordctl";
+
+  installPhase = ''
+    mkdir -p $out/bin
+    mkdir -p $out/share/doc/betterdiscordctl
+    install -Dm744 betterdiscordctl $out/bin/betterdiscordctl
+    install -Dm644 README.md $out/share/doc/betterdiscordctl/README.md
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = "https://github.com/bb010g/betterdiscordctl";
+    description = "A utility for managing BetterDiscord on Linux";
+    license = licenses.mit;
+    maintainers = with maintainers; [ ivar bb010g ];
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/tools/misc/disfetch/default.nix b/pkgs/tools/misc/disfetch/default.nix
new file mode 100644
index 000000000000..d80247801f0c
--- /dev/null
+++ b/pkgs/tools/misc/disfetch/default.nix
@@ -0,0 +1,29 @@
+{ stdenv
+, lib
+, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "disfetch";
+  version = "1.12";
+
+  src = fetchFromGitHub {
+    owner = "llathasa-veleth";
+    repo = "disfetch";
+    rev = version;
+    sha256 = "1zm8q0fx695x28zg8ihzk3w41439v47n68cw6k551x31mls939yn";
+  };
+
+  dontBuild = true;
+
+  installPhase = ''
+    install -Dm755 -t $out/bin disfetch
+  '';
+
+  meta = with lib; {
+    description = "Yet another *nix distro fetching program, but less complex";
+    homepage = "https://github.com/llathasa-veleth/disfetch";
+    license = licenses.mit;
+    platforms = platforms.all;
+    maintainers = [ maintainers.vel ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a6e74f732f35..d57e7a6edd2a 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -987,6 +987,8 @@ in
 
   berglas = callPackage ../tools/admin/berglas/default.nix { };
 
+  betterdiscordctl = callPackage ../tools/misc/betterdiscordctl { };
+
   brakeman = callPackage ../development/tools/analysis/brakeman { };
 
   brewtarget = libsForQt514.callPackage ../applications/misc/brewtarget { } ;
@@ -2014,6 +2016,8 @@ in
 
   discocss = callPackage ../tools/misc/discocss { };
 
+  disfetch = callPackage ../tools/misc/disfetch { };
+
   disk-filltest = callPackage ../tools/system/disk-filltest { };
 
   diskscan = callPackage ../tools/misc/diskscan { };
@@ -4088,6 +4092,8 @@ in
 
   freedroidrpg = callPackage ../games/freedroidrpg { };
 
+  freenukum = callPackage ../games/freenukum { };
+
   freebind = callPackage ../tools/networking/freebind { };
 
   freeipmi = callPackage ../tools/system/freeipmi {};
@@ -6685,6 +6691,8 @@ in
 
   playbar2 = libsForQt5.callPackage ../applications/audio/playbar2 { };
 
+  plujain-ramp = callPackage ../applications/audio/plujain-ramp { };
+
   plex = callPackage ../servers/plex { };
   plexRaw = callPackage ../servers/plex/raw.nix { };
 
@@ -21809,7 +21817,9 @@ in
 
   gitolite = callPackage ../applications/version-management/gitolite { };
 
-  gitoxide = callPackage ../applications/version-management/gitoxide { };
+  gitoxide = callPackage ../applications/version-management/gitoxide {
+    inherit (darwin.apple_sdk.frameworks) Security;
+  };
 
   inherit (gnome3) gitg;
 
@@ -22999,6 +23009,7 @@ in
     mopidy-mpd
     mopidy-mpris
     mopidy-musicbox-webclient
+    mopidy-scrobbler
     mopidy-somafm
     mopidy-soundcloud
     mopidy-spotify