diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index d4c3b79d..168fca16 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -50,9 +50,7 @@ in
         jetbrains.goland jetbrains.clion
         (wine.override { wineBuild = "wineWow"; }) winetricks
         yubico-piv-tool yubikey-personalization yubikey-personalization-gui yubikey-manager-qt
-        mono
-        calcurse unstable.pypi2nix
-        etesync-dav
+        mono calcurse unstable.pypi2nix etesync-dav calibre fbreader unstable.hopper file python37Packages.binwalk-full
       ];
     uid = 1000;
     shell = pkgs.zsh;
diff --git a/nixos/packages/etesync-dav/default.nix b/nixos/packages/etesync-dav/default.nix
index c40371a4..08cf15cd 100644
--- a/nixos/packages/etesync-dav/default.nix
+++ b/nixos/packages/etesync-dav/default.nix
@@ -1,5 +1,6 @@
 with import <nixpkgs> {};
 let
+
     pyscrypt = python37.pkgs.buildPythonPackage rec {
       pname = "pyscrypt";
       version = "1.6.2";