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{ config, pkgs, ... }:

{
  users.users.matrirc.isSystemUser = true;
  systemd.services.matrirc = {
    description = "matrirc service";
    serviceConfig = {
      BindReadOnlyPaths = [
        "/etc/ssl/certs/ca-certificates.crt"
      ];
      Type = "simple";
      User = "matrirc";
      EnvironmentFile = "/etc/nixos/secrets/matrirc";
      StateDirectory = "matrirc";
      ExecStart = "${pkgs.matrirc}/bin/matrirc";
      Restart = "always";
      NoNewPrivileges = "yes";
    };
    wantedBy = [ "default.target" ];
    confinement = {
      enable = true;
      binSh = null;
      mode = "chroot-only";
    };
  };

  services.stunnel = {
    enable = true;
    servers = {
      bitlbee = {
        accept = ":::16697";
        connect = 16667;
        cert = "/var/lib/acme/jormungand.codewreck.org/full.pem";
      };
    };
  };
  systemd.services.stunnel = {
    serviceConfig.BindReadOnlyPaths = [
      "/var/lib/acme/jormungand.codewreck.org/full.pem"
      "/dev/null" "/etc/passwd" "/etc/group"
    ];
    confinement = {
      enable = true;
      binSh = null;
      mode = "chroot-only";
    };
  };
  networking.firewall.extraCommands = ''
    ip6tables -A nixos-fw -p tcp -m tcp --dport 16697 -s 2001:41d0:1:7a93::1 -j ACCEPT
  '';
}