diff --git a/home-manager/modules/keychain.nix b/home-manager/modules/keychain.nix
index b22df15..571d90d 100644
--- a/home-manager/modules/keychain.nix
+++ b/home-manager/modules/keychain.nix
@@ -5,7 +5,7 @@
     enable = true;
     enableFishIntegration = true;
     keys = [
-      "id_ed25519"
+      "id_ed25519_heiko.blobner@pfke.de"
     ];
   };
 }
diff --git a/home-manager/pfke_at_errol.nix b/home-manager/pfke_at_errol.nix
index fb65fad..4e3d16e 100644
--- a/home-manager/pfke_at_errol.nix
+++ b/home-manager/pfke_at_errol.nix
@@ -20,24 +20,6 @@ in {
   home.username = "pfke";
   home.homeDirectory = "/home/pfke";
 
-  fonts = {
-    fonts = with pkgs; [
-      noto-fonts
-      noto-fonts-emoji
-      font-awesome
-      source-han-sans
-      (nerdfonts.override { fonts = [ "Meslo" ]})
-    ];
-    fontconfig = {
-      enable = true;
-      defaultFonts = {
-        monospace = [ "Meslo LG M Regular Nerd Font Complete Mono" ];
-        serif = [ "Noto Serif" "Source Han Serif" ];
-        sansSerif = [ "Nono Sans" "Source Han Sans" ];
-      };
-    }
-  }
-
   # Packages that should be installed to the user profile.
   home.packages = with pkgs; [
     (pkgs.nerdfonts.override { fonts = [ "FiraCode" "DroidSansMono" ]; })
@@ -83,10 +65,8 @@ in {
     vimAlias = true;
   };
 
-  home.sessionPath = [ "/home/pfke/.gu/bin" ];
   home.sessionVariables = {
     EDITOR = "nvim";
-    PERL5LIB = "/home/pfke/.gu/lib/perl";
     GU_ENV = "1";
     MAKE_J_OPTION = "$(nproc)";
     MAKEFLAGS = "-j$(nproc)";