[WIP] Refactor nix config

newnix/nixos/configuration.nix

@@ -0,0 +1,41 @@
+{ config, lib, pkgs, ... }:
+
+{
+  time.timeZone = "Europe/Berlin"; # Adjust to your timezone
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "de_DE.UTF-8";
+    LC_IDENTIFICATION = "de_DE.UTF-8";
+    LC_MEASUREMENT = "de_DE.UTF-8";
+    LC_MONETARY = "de_DE.UTF-8";
+    LC_NAME = "de_DE.UTF-8";
+    LC_NUMERIC = "de_DE.UTF-8";
+    LC_PAPER = "de_DE.UTF-8";
+    LC_TELEPHONE = "de_DE.UTF-8";
+    LC_TIME = "de_DE.UTF-8";
+  };
+
+  programs.zsh.enable = true;
+
+  nix.settings = {
+    experimental-features = [ "nix-command" "flakes" ];
+  };
+
+  nixpkgs.config.allowUnfree = true;
+
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 7d";
+  };
+
+  nix.settings.auto-optimise-store = true;
+
+  environment.systemPackages = with pkgs; [
+    git
+    wget
+    curl
+    vim
+  ];
+}