add config block

installer/installer.nix

@@ -1,12 +1,12 @@
-{ pkgs, config, lib, ... }:
+{ pkgs, config, lib, installFiles, ... }:
 {
   config = {
   systemd.services.custom-install = {
     description = "Custom installation script";
     wantedBy = [ "multi-user.target" ];
     after = [ "network.target" ];
-    path = [ pkgs.util-linux pkgs.parted pkgs.nixos-install-tools pkgs.nixos-anywhere pkgs.disko ];
-    preStart = "/run/current-system/sw/bin/sleep 60";
+    path = [ pkgs.coreutils ];
+    preStart = "/run/current-system/sw/bin/sleep 4";
     serviceConfig = {
       Type = "oneshot";
       RemainAfterExit = true;
@@ -14,16 +14,28 @@
       StandardOutput = "tty";
       StandardError = "tty";
     };
-
+    
     script = ''
-      # Your installation commands here
-      if [ ! -f /etc/installation-completed ]; then
-        # Run your installation steps
-        "${config.myPackages.installFiles}/bin/install.sh"
-        # Mark as completed
-        touch /etc/installation-completed
-      fi
+    mkdir /home/nixos/installer
+    cp -R ${config.myPackages.installFiles}/ /home/nixos/installer
+    ln
+    
+    cat > output.txt <<EOF
+    some text
+    some lines
+    EOF
     '';
+
+    ## Old install script
+    #script = ''
+    #  # Your installation commands here
+    #  if [ ! -f /etc/installation-completed ]; then
+    #    # Run your installation steps
+    #    "${config.myPackages.installFiles}/bin/install.sh"
+    #    # Mark as completed
+    #    touch /etc/installation-completed
+    #  fi
+    #'';
   };
   };
 }