dotfiles/modules/nixos/homelab/guests/jellyfin/config/default.nix

{
  config,
  flake,
  ...
}:
let
  inherit (flake.config.people) user0;
  inherit (flake.config.services) instances;
  serviceCfg = instances.jellyfin;
  id = 993;
in
{
  jellyfinVM =
    {
      user,
      ip,
      mac,
      userMac,
      ssh,
      mnt,
      host,
    }:

    {
      microvm.vms = {
        "${serviceCfg.name}-${user}" = {
          autostart = true;
          restartIfChanged = true;
          config = {
            system.stateVersion = "25.05";
            time.timeZone = "America/Winnipeg";
            users.users.root.openssh.authorizedKeys.keys = flake.config.people.users.${user0}.sshKeys;
            services = {
              jellyfin = {
                enable = true;
                openFirewall = true;
              };
              openssh = {
                enable = true;
                settings = {
                  PasswordAuthentication = false;
                  PermitRootLogin = "prohibit-password";
                };
              };
            };
            users.users.jellyfin = {
              isSystemUser = true;
              group = serviceCfg.name;
              uid = id;
            };
            users.groups.jellyfin = {
              gid = id;
            };
            networking.firewall.allowedTCPPorts = [
              22
              serviceCfg.ports.port0
              serviceCfg.ports.port1
              serviceCfg.ports.port2
            ];
            fileSystems."/tmp" = {
              device = "tmpfs";
              fsType = "tmpfs";
              options = [
                "size=6G"
                "mode=1777"
              ];
            };
            systemd = {
              network = {
                enable = true;
                networks."20-lan" = {
                  matchConfig.Name = "enp0s6";
                  addresses = [ { Address = "${ip}/24"; } ];
                  routes = [
                    {
                      Destination = "0.0.0.0/0";
                      Gateway = "192.168.50.1";
                    }
                  ];
                  dns = [
                    "1.1.1.1"
                    "8.8.8.8"
                  ];
                };
              };
              tmpfiles.rules = [
                "d /var/cache/${serviceCfg.name} 0755 ${serviceCfg.name} ${serviceCfg.name} -"
                "d /var/lib/${serviceCfg.name} 0755 ${serviceCfg.name} ${serviceCfg.name} -"
                "d /var/lib/${serviceCfg.name}-media 0755 ${serviceCfg.name} ${serviceCfg.name} -"
              ];
            };
            systemd.services.systemd-networkd.wantedBy = [ "multi-user.target" ];
            microvm = {
              vcpu = 4;
              mem = 1024 * 3;
              hypervisor = "qemu";
              interfaces = [
                {
                  type = "tap";
                  id = "vm-jf-${user}";
                  mac = mac;
                }
                {
                  type = "user";
                  id = "vmuser-cloud";
                  mac = user;
                }
              ];
              forwardPorts = [
                {
                  from = "host";
                  host.port = ssh;
                  guest.port = 22;
                }
              ];
              shares = [
                {
                  mountPoint = "/nix/.ro-store";
                  proto = "virtiofs";
                  source = "/nix/store";
                  tag = "read_only_nix_store";
                }
                {
                  mountPoint = "/var/lib/${serviceCfg.name}";
                  proto = "virtiofs";
                  source = "${mnt}/${serviceCfg.name}/data";
                  tag = "${serviceCfg.name}_${user}_data";
                }
                {
                  mountPoint = "/var/cache/${serviceCfg.name}";
                  proto = "virtiofs";
                  source = "${mnt}/${serviceCfg.name}/cache";
                  tag = "${serviceCfg.name}_${user}_cache";
                }
                {
                  mountPoint = "/var/lib/${serviceCfg.name}-media";
                  proto = "virtiofs";
                  source = "${mnt}/${serviceCfg.name}/media";
                  tag = "${serviceCfg.name}_${user}_media";
                }
              ];
            };
          };
        };
      };

      users = {
        groups.jellyfin = {
          gid = id;
          members = [ user0 ];
        };
        users = {
          jellyfin = {
            isSystemUser = true;
            group = serviceCfg.name;
            uid = id;
          };
          caddy.extraGroups = [ "acme" ];
        };
      };

      systemd.tmpfiles.rules = [
        "d ${mnt}/${serviceCfg.name} 0755 microvm wheel - -"
        "d ${mnt}/${serviceCfg.name}/data 0755 microvm wheel - -"
        "d ${mnt}/${serviceCfg.name}/cache 0755 microvm wheel - -"
        "d ${mnt}/${serviceCfg.name}/media 0775 microvm wheel - -"
      ];
    };
}