diff --git a/nix/home-manager/configuration/graphical-fullblown.nix b/nix/home-manager/configuration/graphical-fullblown.nix
index 3aa79c5..b902c60 100644
--- a/nix/home-manager/configuration/graphical-fullblown.nix
+++ b/nix/home-manager/configuration/graphical-fullblown.nix
@@ -111,7 +111,7 @@ in {
       aspellDicts.de
       skype
       unstablepkgs.jitsi-meet-electron
-      zoom-us # broken as of 2019-10-30
+      unstablepkgs.zoom-us
       bluejeans-gui
       thunderbird
       gnome3.evolution # gnome4.glib_networking
@@ -234,12 +234,13 @@ in {
       })
 
       pdftk
-      masterpdfeditor
+      # broken as of 2021-04-24
+      # masterpdfeditor
 
       # File Synchronzation
-      seafile-client
-      grive2
-      dropbox
+      # seafile-client
+      # grive2
+      # dropbox
       rsync
 
       # Filesystem Tools
diff --git a/nix/pkgs/default.nix b/nix/pkgs/default.nix
index f743346..d115f06 100644
--- a/nix/pkgs/default.nix
+++ b/nix/pkgs/default.nix
@@ -101,6 +101,7 @@ in rec {
     pyopenssl
     urllib3
     mistune
+    sympy
 
     flask