{config, lib, ...}: let
  inherit (lib.modules) mkIf mkDefault;
  cfg = config.services.plex;
in {
  services.plex.enable = true;
  systemd.services.plex = mkIf cfg.enable {
    # /var/lib/plex/mesa_shader_cache
    environment.MESA_SHADER_CACHE_DIR = mkDefault cfg.dataDir;
    # KillMode = "mixed" doesn't behave as expected...
    serviceConfig.TimeoutStopSec = 5;
  };

  # Plex Media Server:
  #
  # TCP:
  # * 32400 - direct HTTP access - we don't want to open this considering we're reverse proxying
  # * 8324 - Roku via Plex Companion
  # * 32469 - Plex DLNA Server
  # UDP:
  # * 1900 - DLNA
  # * 32410, 32412, 32413, 32414 - GDM Network Discovery

  networking.firewall.interfaces.local = {
    allowedTCPPorts = [32400 8324 32469];
    allowedUDPPorts = [1900 32410 32412 32413 32414];
  };
}