NixOS
diff --git a/nixos/modules/services/desktops/geoclue2.nix b/nixos/modules/services/desktops/geoclue2.nix
@@ -188,34 +188,41 @@ in
 
     systemd.packages = [ package ];
 
-    users.users.geoclue = {
-      isSystemUser = true;
-      home = "/var/lib/geoclue";
-      group = "geoclue";
-      description = "Geoinformation service";
-    };
-
-    users.groups.geoclue = {};
+    # we cannot use DynamicUser as we need the the geoclue user to exist for the dbus policy to work
+    users = {
+      users.geoclue = {
+        isSystemUser = true;
+        home = "/var/lib/geoclue";
+        group = "geoclue";
+        description = "Geoinformation service";
+      };
 
-    systemd.tmpfiles.rules = [
-      "d /var/lib/geoclue 0755 geoclue geoclue"
-    ];
+      groups.geoclue = {};
+    };
 
-    # restart geoclue service when the configuration changes
-    systemd.services.geoclue.restartTriggers = [
-      config.environment.etc."geoclue/geoclue.conf".source
-    ];
+    systemd.services.geoclue = {
+      # restart geoclue service when the configuration changes
+      restartTriggers = [
+        config.environment.etc."geoclue/geoclue.conf".source
+      ];
+      serviceConfig.StateDirectory = "geoclue";
+    };
 
     # this needs to run as a user service, since it's associated with the
     # user who is making the requests
     systemd.user.services = mkIf cfg.enableDemoAgent {
       geoclue-agent = {
         description = "Geoclue agent";
-        script = "${package}/libexec/geoclue-2.0/demos/agent";
         # this should really be `partOf = [ "geoclue.service" ]`, but
         # we can't be part of a system service, and the agent should
         # be okay with the main service coming and going
         wantedBy = [ "default.target" ];
+        serviceConfig = {
+          Type = "exec";
+          ExecStart = "${package}/libexec/geoclue-2.0/demos/agent";
+          Restart = "on-failure";
+          PrivateTmp = true;
+        };
       };
     };
 
@@ -256,4 +263,6 @@ in
         };
       } // mapAttrs' appConfigToINICompatible cfg.appConfig);
   };
+
+  meta.maintainers = with lib.maintainers; [ worldofpeace ];
 }
diff --git a/pkgs/applications/accessibility/contrast/default.nix b/pkgs/applications/accessibility/contrast/default.nix
@@ -0,0 +1,71 @@
+{ stdenv
+, fetchFromGitLab
+, cairo
+, dbus
+, desktop-file-utils
+, gettext
+, glib
+, gtk3
+, libhandy
+, meson
+, ninja
+, pango
+, pkgconfig
+, python3
+, rustc
+, rustPlatform
+, wrapGAppsHook
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "contrast";
+  version = "0.0.2";
+
+  src = fetchFromGitLab {
+    domain = "gitlab.gnome.org";
+    group = "World";
+    owner = "design";
+    repo = "contrast";
+    rev = version;
+    sha256 = "0rm705zrk9rfv31pwbqxrswi5v6vhnghxa8dgxjmcrh00l8dm6j9";
+  };
+
+  cargoSha256 = "06vgc89d93fhjcyy9d1v6lf8kr34pl5bbpwbv2jpfahpj9y84bgj";
+
+  nativeBuildInputs = [
+    desktop-file-utils
+    gettext
+    meson
+    ninja
+    pkgconfig
+    python3
+    wrapGAppsHook
+  ];
+
+  buildInputs = [
+    cairo
+    dbus
+    glib
+    gtk3
+    libhandy
+    pango
+  ];
+
+  postPatch = ''
+    patchShebangs build-aux/meson_post_install.py
+  '';
+
+  # Don't use buildRustPackage phases, only use it for rust deps setup
+  configurePhase = null;
+  buildPhase = null;
+  checkPhase = null;
+  installPhase = null;
+
+  meta = with stdenv.lib; {
+    description = "Checks whether the contrast between two colors meet the WCAG requirements";
+    homepage = https://gitlab.gnome.org/World/design/contrast;
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ jtojnar ];
+  };
+}
+
diff --git a/pkgs/applications/blockchains/jormungandr/default.nix b/pkgs/applications/blockchains/jormungandr/default.nix
@@ -10,16 +10,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "jormungandr";
-  version = "0.7.0-rc2";
+  version = "0.7.0-rc3";
 
   src = fetchgit {
     url = "https://github.com/input-output-hk/${pname}";
     rev = "v${version}";
-    sha256 = "10zx23qkg5kvizz0nk9n70nrk3y4qqpr84a98xg9bzxh84hm4d4z";
+    sha256 = "09hfmzgz1imz22w27c0aal6v7m4yfivh0sk63mawcd4m7sa6045c";
     fetchSubmodules = true;
   };
 
-  cargoSha256 = "1pp829azj6aw68ba637rm852sj61nxznxfzrlqs9ds6adk9h7abs";
+  cargoSha256 = "0syfwykwzfm9nqpna0qrmjiv4dp0rxxbpxv8qawq9ivs9z8fbq2m";
 
   nativeBuildInputs = [ pkgconfig protobuf ];
   buildInputs = [ openssl ] ++ lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.Security ];

diff --git a/pkgs/applications/misc/elogind/default.nix b/pkgs/applications/misc/elogind/default.nix
@@ -0,0 +1,82 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, meson
+, ninja
+, m4
+, gperf
+, getent
+, libcap
+, gettext
+, pkgconfig
+, udev
+, eudev
+, libxslt
+, python3
+, docbook5
+, docbook_xsl
+, docbook_xsl_ns
+, docbook_xml_dtd_42
+, docbook_xml_dtd_45
+
+# Defaulting to false because usually the rationale for using elogind is to
+# use it in situation where a systemd dependency does not work (especially
+# when building with musl, which elogind explicitly supports).
+, enableSystemd ? false
+}:
+
+with stdenv.lib;
+
+stdenv.mkDerivation rec {
+  pname = "elogind";
+  version = "239.5";
+
+  src = fetchFromGitHub {
+    owner = "elogind";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1gdiy4vbx4gs2hnb79x14zi530mlq26glxpzp3c95w8l058wj4ba";
+  };
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    m4
+    pkgconfig
+    gperf
+    getent
+    libcap
+    gettext
+    libxslt.bin # xsltproc
+    docbook5 docbook_xsl docbook_xsl_ns docbook_xml_dtd_42 docbook_xml_dtd_45 # needed for docbook without Internet
+    (python3.withPackages (p: with p; [ lxml ]))  # fixes: man/meson.build:111:0: ERROR: Could not execute command "/build/source/tools/xml_helper.py".
+  ];
+
+  buildInputs =
+    if enableSystemd then [ udev ] else [ eudev ];
+
+  # Inspired by the systemd `preConfigure`.
+  # Conceptually we should patch all files required during the build, but not scripts
+  # supposed to run at run-time of the software (important for cross-compilation).
+  # This package seems to have mostly scripts that run at build time.
+  preConfigure = ''
+    for dir in tools src/test; do
+      patchShebangs $dir
+    done
+
+    patchShebangs src/basic/generate-*.{sh,py}
+  '';
+
+  mesonFlags = [
+    "-Drootprefix=${placeholder "out"}"
+    "-Dsysconfdir=${placeholder "out"}/etc"
+  ];
+
+  meta = {
+    homepage = https://github.com/elogind/elogind;
+    description = ''The systemd project's "logind", extracted to a standalone package'';
+    platforms = platforms.linux; # probably more
+    license = licenses.lgpl21Plus;
+    maintainers = with maintainers; [ nh2 ];
+  };
+}
diff --git a/pkgs/applications/networking/browsers/vivaldi/default.nix b/pkgs/applications/networking/browsers/vivaldi/default.nix
@@ -17,11 +17,11 @@ let
   vivaldiName = if isSnapshot then "vivaldi-snapshot" else "vivaldi";
 in stdenv.mkDerivation rec {
   pname = "vivaldi";
-  version = "2.8.1664.44-1";
+  version = "2.9.1705.31-1";
 
   src = fetchurl {
     url = "https://downloads.vivaldi.com/${branch}/vivaldi-${branch}_${version}_amd64.deb";
-    sha256 = "0z1d03zw0jhvi14n06qfdr1n63idq56ly7mgiv27s21zvdma887k";
+    sha256 = "113bycfygyx09bc5bgsmdniffp3282004yrl7gr16dssxrw52al2";
   };
 
   unpackPhase = ''

diff --git a/pkgs/applications/networking/instant-messengers/telepathy/mission-control/default.nix b/pkgs/applications/networking/instant-messengers/telepathy/mission-control/default.nix
@@ -1,22 +1,44 @@
-{ stdenv, fetchurl, pkgconfig, gnome3, telepathy-glib, libxslt, makeWrapper }:
+{ stdenv
+, fetchurl
+, pkgconfig
+, gnome3
+, telepathy-glib
+, python3
+, libxslt
+, makeWrapper
+}:
 
 stdenv.mkDerivation rec {
-  name = "${pname}-5.16.4";
   pname = "telepathy-mission-control";
+  version = "5.16.5";
+
+  outputs = [ "out" "lib" "dev" ];
 
   src = fetchurl {
-    url = "https://telepathy.freedesktop.org/releases/${pname}/${name}.tar.gz";
-    sha256 = "1jz6wwgsfxixha6ys2hbzbk5faqnj9kh2m5qdlgx5anqgandsscp";
+    url = "https://telepathy.freedesktop.org/releases/${pname}/${pname}-${version}.tar.gz";
+    sha256 = "00xxv38cfdirnfvgyd56m60j0nkmsv5fz6p2ydyzsychicxl6ssc";
   };
 
-  buildInputs = [ telepathy-glib telepathy-glib.python ]; # ToDo: optional stuff missing
+  buildInputs = [
+    python3
+  ]; # ToDo: optional stuff missing
+
+  nativeBuildInputs = [
+    pkgconfig
+    libxslt
+    makeWrapper
+  ];
 
-  nativeBuildInputs = [ pkgconfig libxslt makeWrapper ];
+  propagatedBuildInputs = [
+    telepathy-glib
+  ];
 
   doCheck = true;
 
+  enableParallelBuilding = true;
+
   preFixup = ''
-    wrapProgram "$out/libexec/mission-control-5" \
+    wrapProgram "$lib/libexec/mission-control-5" \
       --prefix GIO_EXTRA_MODULES : "${stdenv.lib.getLib gnome3.dconf}/lib/gio/modules" \
       --prefix XDG_DATA_DIRS : "$GSETTINGS_SCHEMAS_PATH"
   '';

diff --git a/pkgs/data/fonts/twitter-color-emoji/default.nix b/pkgs/data/fonts/twitter-color-emoji/default.nix
@@ -3,29 +3,20 @@
 
 { stdenv
 , fetchFromGitHub
+, fetchpatch
 , cairo
 , graphicsmagick
 , pkg-config
 , pngquant
 , python3
 , which
 , zopfli
-, fetchpatch
+, noto-fonts-emoji
 }:
 
 let
   version = "12.1.2";
 
-  # Cannot use noto-fonts-emoji.src since it is too old
-  # and still tries to use vendored pngquant.
-  notoSrc = fetchFromGitHub {
-    name = "noto";
-    owner = "googlefonts";
-    repo = "noto-emoji";
-    rev = "833a43d03246a9325e748a2d783006454d76ff66";
-    sha256 = "1g6ikzk8banm3ihqm9g27ggjq2mn1b1hq3zhpl13lxid6mp60s4a";
-  };
-
   twemojiSrc = fetchFromGitHub {
     name = "twemoji";
     owner = "twitter";
@@ -34,46 +25,36 @@ let
     sha256 = "0vzmlp83vnk4njcfkn03jcc1vkg2rf12zf5kj3p3a373xr4ds1zn";
   };
 
-  python = python3.withPackages (pp: with pp; [
-    nototools
-  ]);
 in
 stdenv.mkDerivation rec {
   pname = "twitter-color-emoji";
   inherit version;
 
   srcs = [
-    notoSrc
+    noto-fonts-emoji.src
     twemojiSrc
   ];
 
-  sourceRoot = notoSrc.name;
+  sourceRoot = noto-fonts-emoji.src.name;
 
   postUnpack = ''
     chmod -R +w ${twemojiSrc.name}
-    mv ${twemojiSrc.name} ${notoSrc.name}
+    mv ${twemojiSrc.name} ${noto-fonts-emoji.src.name}
   '';
 
   nativeBuildInputs = [
     cairo
     graphicsmagick
     pkg-config
     pngquant
-    python
+    python3
+    python3.pkgs.nototools
     which
     zopfli
   ];
 
   patches = [
-    # Port to python3
-    (fetchpatch {
-      url = "https://src.fedoraproject.org/rpms/twitter-twemoji-fonts/raw/3bc176c10ced2824fe03da5ff561e22a36bf8ccd/f/noto-emoji-port-to-python3.patch";
-      sha256 = "1b91abd050phxlxq7322i74nkx16fkhpw14yh97r2j4c7fqarr2q";
-    })
-    (fetchpatch {
-      url = "https://src.fedoraproject.org/rpms/twitter-twemoji-fonts/raw/3bc176c10ced2824fe03da5ff561e22a36bf8ccd/f/noto-emoji-python3.patch";
-      sha256 = "0mw2c748izb6h9a19jwc0qxlb6l1kj6k8gc345lpf7lfcxfl7l59";
-    })
+    # ImageMagick -> GrahphicsMagick
     (fetchpatch {
       url = "https://src.fedoraproject.org/rpms/twitter-twemoji-fonts/raw/3bc176c10ced2824fe03da5ff561e22a36bf8ccd/f/noto-emoji-use-gm.patch";
       sha256 = "0yfmfzaaiq5163c06172g4r734aysiqyv1s28siv642vqzsqh4i2";