{ config, pkgs, lib, ... }:
{
config = lib.mkIf (config.networking.hostName == "FredOS-Mediaserver") {
  fileSystems."/mnt/disk1" = {
    device = "/dev/disk/by-uuid/90ae3493-38c1-4473-b409-e9d99c3b315e";
    fsType = "ext4";
    options = [ "defaults" ];
  };
  fileSystems."/mnt/disk2" = {
    device = "/dev/disk/by-uuid/7145223e-f285-424a-a114-cb0b1b64e068";
    fsType = "ext4";
    options = [ "defaults" ];
  };
  fileSystems."/mnt/disk3" = {
    device = "/dev/disk/by-uuid/613abe28-9af9-481e-9673-0eab1913b32c";
    fsType = "ext4";
    options = [ "defaults" ];
  };
  fileSystems."/mnt/storage" = {
    device = "/mnt/disk1:/mnt/disk2:/mnt/disk3";
    fsType = "fuse.mergerfs";
    options = [
      "defaults"
      "allow_other"
      "use_ino"
      "cache.files=partial"
      "dropcacheonclose=true"
      "category.create=mfs"  # Most free space for new files
    ];
  };

  # Create symlink from home to storage
  systemd.tmpfiles.rules = [
    "L+ /home/fred/storage - - - - /mnt/storage"
    "d /var/lib/nginx-proxy-manager/data 0755 root root -"
    "d /var/lib/nginx-proxy-manager/letsencrypt 0755 root root -"
  ];

  # Basic system packages
  environment.systemPackages = with pkgs; [
    mergerfs
    wget
    btop
  ];

  # Jellyfin
  services.jellyfin = {
    enable = true;
    openFirewall = true;
  };

  # Nginx Proxy Manager
  virtualisation.docker.enable = true;
  
  systemd.services.nginx-proxy-manager = {
    description = "Nginx Proxy Manager";
    after = [ "docker.service" ];
    requires = [ "docker.service" ];
    wantedBy = [ "multi-user.target" ];
    
    serviceConfig = {
      Type = "oneshot";
      RemainAfterExit = true;
      ExecStart = ''
        ${pkgs.docker}/bin/docker run -d \
          --name=nginx-proxy-manager \
          --restart=unless-stopped \
          -p 80:80 \
          -p 81:81 \
          -p 443:443 \
          -v /var/lib/nginx-proxy-manager/data:/data \
          -v /var/lib/nginx-proxy-manager/letsencrypt:/etc/letsencrypt \
          jc21/nginx-proxy-manager:latest
      '';
      ExecStop = "${pkgs.docker}/bin/docker stop nginx-proxy-manager";
    };
  };

  # Open firewall for web traffic
  networking.firewall.allowedTCPPorts = [ 80 443 81 ];  # 81 is NPM admin interface

  # Basic networking
  networking.useDHCP = lib.mkDefault true;

  # System state version
  system.stateVersion = "25.11";
};
}