diff --git a/jeschli/1systems/bln/config.nix b/jeschli/1systems/bln/config.nix
index 901970e81..873c0fa3d 100644
--- a/jeschli/1systems/bln/config.nix
+++ b/jeschli/1systems/bln/config.nix
@@ -38,7 +38,7 @@
 
   networking.hostName = "BLN02NB0154"; # Define your hostname.
   networking.networkmanager.enable = true;
-   #networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
 
   # Select internationalisation properties.
   # i18n = {
@@ -54,7 +54,11 @@
   # List packages installed in system profile. To search by name, run:
   # $ nix-env -qaP | grep wget
   nixpkgs.config.allowUnfree = true;
-  environment.shellAliases = { n = "nix-shell"; };
+  environment.shellAliases = { 
+    n = "nix-shell"; 
+    gd = "cd /home/markus/go/src/gitlab.dcso.lolcat"; 
+    gh = "cd /home/markus/go/src/github.com"; 
+  };
   environment.variables = { GOROOT= [ "${pkgs.go.out}/share/go" ]; };
   environment.systemPackages = with pkgs; [
   # system helper
@@ -62,6 +66,7 @@
     copyq
     dmenu
     git
+    tig
     i3lock
     keepass
     networkmanagerapplet
@@ -72,6 +77,8 @@
     rxvt_unicode
   # editors
     emacs
+  # databases
+    sqlite
   # internet 
     thunderbird
     hipchat
@@ -91,6 +98,7 @@
     jetbrains.pycharm-professional
     jetbrains.webstorm
     jetbrains.goland
+    jetbrains.datagrip
     texlive.combined.scheme-full
     pandoc
     redis
diff --git a/jeschli/1systems/brauerei/config.nix b/jeschli/1systems/brauerei/config.nix
index 171a002da..2dec45795 100644
--- a/jeschli/1systems/brauerei/config.nix
+++ b/jeschli/1systems/brauerei/config.nix
@@ -96,7 +96,7 @@
 
   # Enable the X11 windowing system.
   services.xserver.enable = true;
-  # services.xserver.layout = "us";
+  services.xserver.layout = "us";
   # services.xserver.xkbOptions = "eurosign:e";
 
   # Enable touchpad support.
diff --git a/jeschli/source.nix b/jeschli/source.nix
index d1b64b0ed..ae9e1e72e 100644
--- a/jeschli/source.nix
+++ b/jeschli/source.nix
@@ -10,7 +10,7 @@ in
       nixos-config.symlink = "stockholm/jeschli/1systems/${name}/config.nix";
       nixpkgs.git = {
         url = https://github.com/nixos/nixpkgs;
-        ref = "f9390d6";
+        ref = "d83c808";
       };
       secrets.file = getAttr builder {
         buildbot = toString <stockholm/jeschli/2configs/tests/dummy-secrets>;