{ lib, config, ... }:

let
  cfg = config.cherrykitten.impermanence;
in
{
  options.cherrykitten.impermanence = {
    enable = lib.mkEnableOption "impermanence";
  };

  config = lib.mkIf cfg.enable {
    environment.persistence."/nix/persist" = {
      hideMounts = true;
      directories = [
        "/var/log"
        "/var/lib/bluetooth"
        "/var/lib/nixos"
        "/var/lib/systemd/coredump"
        "/var/lib/iwd"
        "/home"
      ];
      files = [
        "/etc/machine-id"
        "/etc/ssh/ssh_host_rsa_key"
        "/etc/ssh/ssh_host_rsa_key.pub"
        "/etc/ssh/ssh_host_ed25519_key"
        "/etc/ssh/ssh_host_ed25519_key.pub"
      ];
    };
  };
}