{ ... }:

# Seerr (formerly Jellyseerr) — request manager for Jellyfin, talks to
# Sonarr/Radarr to fulfill requests. Fresh install, no migrated data.
#
# configDir is left at the module default (/var/lib/seerr) on purpose:
# systemd's StateDirectory= auto-chown for DynamicUser only applies to that
# exact default path, not to an arbitrary custom one (same class of issue as
# prowlarr.nix, worked around the same way) — bind-mount AppData onto the
# default path instead of overriding configDir, so it stays on the RAID array
# and survives an OS-disk reinstall like every other service's data.
#
# Mount onto /var/lib/private/seerr, NOT the public /var/lib/seerr:
# DynamicUser+StateDirectory keeps real data at .../private/<name> and makes
# the public path a symlink to it; binding onto the public path turns it into
# a mountpoint systemd then can't rename during its migrate-on-start dance
# ("Device or resource busy", exit 238/STATE_DIRECTORY).
{
  services.seerr.enable = true;

  fileSystems."/var/lib/private/seerr" = {
    device = "/mnt/data/AppData/seerr";
    fsType = "none";
    options = [ "bind" ];
  };

  systemd.tmpfiles.rules = [
    "d /mnt/data/AppData/seerr 0755 darman users -"
  ];
}