diff --git a/bert/services/factorio.nix b/bert/services/factorio.nix
index 0c7f423..1d832bf 100644
--- a/bert/services/factorio.nix
+++ b/bert/services/factorio.nix
@@ -1,10 +1,10 @@
-{lib, ...}: {
-  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem pkg.pname [
+{pkgs, lib, ...}: {
+  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
     "factorio-headless"
   ];
   services.factorio = {
     enable = true;
-    package = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/e47e7cdafffab8b74c2878e02c37696dfcdebca0.tar.gz") {
+    package = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/ab224822391f803e3b58c65f753162361e769075.tar.gz") {
       config.allowUnfree = true;
     }).factorio-headless;
     openFirewall = true;
diff --git a/oscar/configuration.nix b/oscar/configuration.nix
index 451893e..84a43fd 100644
--- a/oscar/configuration.nix
+++ b/oscar/configuration.nix
@@ -44,6 +44,10 @@
   networking.hostName = "oscar"; # Define your hostname.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
 
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
   # Enable networking
   networking.networkmanager.enable = true;
 
@@ -98,9 +102,17 @@
     alsa.enable = true;
     alsa.support32Bit = true;
     pulse.enable = true;
+    # If you want to use JACK applications, uncomment this
     jack.enable = true;
+
+    # use the example session manager (no others are packaged yet so this is enabled by default,
+    # no need to redefine it in your config for now)
+    #media-session.enable = true;
   };
 
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.xserver.libinput.enable = true;
+
   environment.sessionVariables.NIXOS_OZONE_WL = "1";
 
   # Define a user account. Don't forget to set a password with ‘passwd’.
@@ -111,14 +123,12 @@
   home-manager.users.chandler = { pkgs, ... }: {
 
     nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
-      "android-studio-stable"
       "discord"
       "factorio-space-age"
     ];
 
     home.packages = with pkgs; [
       # applications
-      android-studio
       blender
       freecad
       frescobaldi
@@ -132,14 +142,10 @@
       libreoffice-qt
       mumble
       musescore
+      prismlauncher
       prusa-slicer
       qgis
-
-      # games
-      bolt-launcher
-      prismlauncher
       scummvm
-      # runelite
 
       # command line applications
       iperf
@@ -178,9 +184,7 @@
 
       # Unfree:
       discord
-      (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/e47e7cdafffab8b74c2878e02c37696dfcdebca0.tar.gz") {
-        config.allowUnfree = true;
-      }).factorio-space-age
+      factorio-space-age
     ];
 
     programs.thunderbird.enable = true;