nixos-config/services/tailscale.nix

{config, ...}: {
  services.tailscale = {
    enable = true;
    authKeyFile = config.sops.secrets."services/tailscale/authKey".path;
  };
  sops.secrets."services/tailscale/authKey".sopsFile = ./tailscale.yaml;
  environment.persistence."/persistent".directories = [
    "/var/lib/tailscale"
  ];
}