Bounch of linux system goodies, swayfx, swaylock-effects, firewall,

auto store cleanup, audio, ly display manager, vpn,
       time/date/localization

nix/system/linux.nix

@@ -1,13 +1,66 @@
 { pkgs, ... }:
 {
   programs = {
-    zsh = {
+    zsh.enable = true;
+    sway = {
+      enable = true;
+      package = pkgs.swayfx;
+    };
+  };
+
+  networking = {
+    firewall = {
+      enable = true;
+      allowedTCPPorts = [ 22 ];
+    };
+  };
+
+  nix = {
+    settings = {
+      auto-optimise-store = true;
+    };
+    gc = {
+      automatic = true;
+      dates = "weekly";
+      options = "--delete-older-than 7d";
+    };
+  };
+
+  services = {
+    pipewire = {
+      enable = true;
+      alsa.enable = true;
+      pulse.enable = true;
+      jack.enable = true;
+    };
+    displayManager.ly = {
       enable = true;
     };
+    timesyncd.enable = true;
+    mullvad-vpn.enable = true;
+  };
+
+  time = {
+    timeZone = "Europe/Stockholm";
+  };
+
+  i18n = {
+    defaultLocale = "en_US.UTF-8";
+    extraLocaleSettings = {
+      LC_NUMERIC = "sv_SE.UTF-8";
+      LC_MONETARY = "sv_SE.UTF-8";
+      LC_PAPER = "sv_SE.UTF-8";
+      LC_MEASUREMENT = "sv_SE.UTF-8";
+    };
+    supportedLocales = [
+      "en_US.UTF-8/UTF-8"
+      "sv_SE.UTF-8/UTF-8"
+    ];
   };
 
   environment.systemPackages = with pkgs; [
     vim
     home-manager
+    swaylock-effects
   ];
 }