diff --git a/pkgs/applications/graphics/fondo/default.nix b/pkgs/applications/graphics/fondo/default.nix
index 34dd4926a49f..c2cb4c92d47e 100644
--- a/pkgs/applications/graphics/fondo/default.nix
+++ b/pkgs/applications/graphics/fondo/default.nix
@@ -1,4 +1,5 @@
-{ lib, stdenv
+{ lib
+, stdenv
 , fetchFromGitHub
 , nix-update-script
 , pantheon
@@ -57,18 +58,15 @@ stdenv.mkDerivation rec {
     patchShebangs meson/post_install.py
   '';
 
-  passthru = {
-    updateScript = nix-update-script {
-      attrPath = pname;
-    };
-  };
-
-
   meta = with lib; {
-    description = "Find the most beautiful wallpapers for your desktop";
     homepage = "https://github.com/calo001/fondo";
+    description = "Find the most beautiful wallpapers for your desktop";
     license = licenses.agpl3Plus;
-    maintainers = with maintainers; [ ];
+    maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.linux;
   };
+
+  passthru.updateScript = nix-update-script {
+    attrPath = pname;
+  };
 }
diff --git a/pkgs/applications/misc/notejot/default.nix b/pkgs/applications/misc/notejot/default.nix
index 724d9285ec2b..bd30fa2bb211 100644
--- a/pkgs/applications/misc/notejot/default.nix
+++ b/pkgs/applications/misc/notejot/default.nix
@@ -1,15 +1,30 @@
-{ lib, stdenv, fetchFromGitHub, nix-update-script, vala, pkg-config, meson, ninja, python3, pantheon
-, gtk3, gtksourceview, json-glib, libgee, wrapGAppsHook }:
+{ lib
+, stdenv
+, fetchFromGitHub
+, gtk4
+, gtksourceview
+, json-glib
+, libadwaita
+, libgee
+, meson
+, ninja
+, nix-update-script
+, pantheon
+, pkg-config
+, python3
+, vala
+, wrapGAppsHook
+}:
 
 stdenv.mkDerivation rec {
   pname = "notejot";
-  version = "1.6.3";
+  version = "3.0.4";
 
   src = fetchFromGitHub {
     owner = "lainsce";
     repo = pname;
     rev = version;
-    sha256 = "170dzgd6cnf2k3hfifjysmdggpskx6v1pjmblqgbwaj2d3snf3h8";
+    hash = "sha256-p8rca3PsnT/3Lp6W30VvqR9aPr6EIuNrH5gsxL0lZ0Q=";
   };
 
   nativeBuildInputs = [
@@ -20,31 +35,30 @@ stdenv.mkDerivation rec {
     python3
     wrapGAppsHook
   ];
-
   buildInputs = [
-    gtk3
+    gtk4
     gtksourceview
     json-glib
+    libadwaita
     libgee
     pantheon.elementary-icon-theme
     pantheon.granite
   ];
 
   postPatch = ''
-    patchShebangs meson/post_install.py
+    chmod +x build-aux/post_install.py
+    patchShebangs build-aux/post_install.py
   '';
 
-  passthru = {
-    updateScript = nix-update-script {
-      attrPath = pname;
-    };
-  };
-
   meta = with lib; {
-    description = "Stupidly-simple sticky notes applet";
     homepage = "https://github.com/lainsce/notejot";
-    license = licenses.gpl2Plus;
-    maintainers = with maintainers; [ ];
+    description = "Stupidly-simple sticky notes applet";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.linux;
   };
+
+  passthru.updateScript = nix-update-script {
+    attrPath = pname;
+  };
 }
diff --git a/pkgs/applications/networking/ftp/taxi/default.nix b/pkgs/applications/networking/ftp/taxi/default.nix
index 9e6ee864137b..66692f96c669 100644
--- a/pkgs/applications/networking/ftp/taxi/default.nix
+++ b/pkgs/applications/networking/ftp/taxi/default.nix
@@ -1,33 +1,48 @@
-{ lib, stdenv, fetchFromGitHub, nix-update-script, pantheon, pkg-config, meson, ninja, python3, vala
-, gtk3, libgee, libsoup, libsecret, gobject-introspection, wrapGAppsHook }:
+{ lib
+, stdenv
+, fetchFromGitHub
+, gobject-introspection
+, gtk3
+, libgee
+, libsecret
+, libsoup
+, meson
+, ninja
+, nix-update-script
+, pantheon
+, pkg-config
+, python3
+, vala
+, wrapGAppsHook
+}:
 
 stdenv.mkDerivation rec {
   pname = "taxi";
-  version = "0.0.1";
+  version = "0.0.1-unstable=2020-09-03";
 
   src = fetchFromGitHub {
     owner = "Alecaddd";
     repo = pname;
-    rev = "v${version}";
-    sha256 = "01c552w68576pnsyqbwy3hjhbww6vys3r3s0wxjdiscjqj1aawqg";
+    rev = "74aade67fd9ba9e5bc10c950ccd8d7e48adc2ea1";
+    sha256 = "sha256-S/FeKJxIdA30CpfFVrQsALdq7Gy4F4+P50Ky5tmqKvM=";
   };
 
   nativeBuildInputs = [
-    vala
     gobject-introspection
     meson
     ninja
     pkg-config
     python3
+    vala
     wrapGAppsHook
   ];
 
   buildInputs = [
-    pantheon.granite
-    libgee
     gtk3
+    libgee
     libsecret
     libsoup
+    pantheon.granite
   ];
 
   postPatch = ''
@@ -35,17 +50,15 @@ stdenv.mkDerivation rec {
     patchShebangs meson/post_install.py
   '';
 
-  passthru = {
-    updateScript = nix-update-script {
-      attrPath = pname;
-    };
+  meta = with lib; {
+    homepage = "https://github.com/Alecaddd/taxi";
+    description = "The FTP Client that drives you anywhere";
+    license = licenses.lgpl3Plus;
+    maintainers = with maintainers; [ AndersonTorres ];
+    platforms = platforms.linux;
   };
 
-  meta = with lib; {
-    description = "The FTP Client that drives you anywhere";
-    homepage    = "https://github.com/Alecaddd/taxi";
-    license     = licenses.gpl3Plus;
-    maintainers = with maintainers; [ ];
-    platforms   = platforms.linux;
+  passthru.updateScript = nix-update-script {
+    attrPath = pname;
   };
 }
diff --git a/pkgs/applications/video/celluloid/default.nix b/pkgs/applications/video/celluloid/default.nix
index 838d306c6854..f6bc0561b0c6 100644
--- a/pkgs/applications/video/celluloid/default.nix
+++ b/pkgs/applications/video/celluloid/default.nix
@@ -1,42 +1,42 @@
-{ lib, stdenv
+{ lib
+, stdenv
 , fetchFromGitHub
-, nix-update-script
-, meson
-, ninja
-, python3
-, gettext
-, pkg-config
-, desktop-file-utils
-, wrapGAppsHook
 , appstream-glib
+, desktop-file-utils
 , epoxy
+, gettext
 , glib
 , gtk3
+, meson
 , mpv
+, ninja
+, nix-update-script
+, pkg-config
+, python3
+, wrapGAppsHook
 }:
 
 stdenv.mkDerivation rec {
   pname = "celluloid";
-  version = "0.20";
+  version = "0.21";
 
   src = fetchFromGitHub {
     owner = "celluloid-player";
     repo = "celluloid";
     rev = "v${version}";
-    hash = "sha256-fEZnH8EqU6CykgKINXnKChuBUlisroa97B1vjcx2cWA=";
+    hash = "sha256-1Jeg1uqWxURGKR/Xg4j4roZ9Pg5MR7geyttdzlOU+rA=";
   };
 
   nativeBuildInputs = [
+    appstream-glib
+    desktop-file-utils
+    gettext
     meson
     ninja
-    python3
-    appstream-glib
-    gettext
     pkg-config
-    desktop-file-utils
+    python3
     wrapGAppsHook
   ];
-
   buildInputs = [
     epoxy
     glib
@@ -50,22 +50,20 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
-  passthru = {
-    updateScript = nix-update-script {
-      attrPath = pname;
-    };
-  };
-
   meta = with lib; {
+    homepage = "https://github.com/celluloid-player/celluloid";
     description = "Simple GTK frontend for the mpv video player";
     longDescription = ''
-      GNOME MPV interacts with mpv via the client API exported by libmpv,
-      allowing access to mpv's powerful playback capabilities through an
-      easy-to-use user interface.
+      Celluloid (formerly GNOME MPV) is a simple GTK+ frontend for mpv.
+      Celluloid interacts with mpv via the client API exported by libmpv,
+      allowing access to mpv's powerful playback capabilities.
     '';
-    homepage = "https://github.com/celluloid-player/celluloid";
     license = licenses.gpl3Plus;
-    maintainers = with maintainers; [ ];
+    maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.linux;
   };
+
+  passthru.updateScript = nix-update-script {
+    attrPath = pname;
+  };
 }