added sanddorn config

modules/base.nix

@@ -1,6 +1,14 @@
 { pkgs, config, ... }:
 
 {
+
+  nix = {
+    package = pkgs.nixUnstable; # or versioned attributes like nix_2_4
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };  
+
   # Select internationalisation properties.
   i18n.defaultLocale = "en_US.UTF-8";
   console = {
@@ -32,8 +40,7 @@
     ];
   };
 
-  # allow unfree licenced packges
-  # nixpkgs.config.allowUnfree = true;
+  time.timeZone = "Europe/Berlin";
 
   # basic shell & editor
   programs.fish.enable = true;

modules/infoscreen.nix

@@ -0,0 +1,32 @@
+{ pkgs
+, lib
+, config
+, ...
+}: 
+let
+  fsr-infoscreen = pkgs.fsr-infoscreen;
+
+in {
+
+  systemd = {
+    services."fsr-infoscreen" = {
+      enable = true;
+      wantedBy = [ "multi-user.target" ];
+      script = ''
+        ${pkgs.python39}/bin/python39 ${fsr-infoscreen}/build/middleware/infoscreen.py
+      '';
+
+      serviceConfig = {
+          User = "infoscreen";
+          Restart = "on-failure";
+        };
+      };
+    };
+
+    users.users.infoscreen = {
+      name = "infoscreen";
+      description = "custom user for service infoscreen service";
+      isNormalUser = true;
+    };
+
+}