{ pkgs, lib, config, ... }: let cfg = config.my.applications.ssh.system; in { options.my.applications.ssh.system = { enable = lib.mkEnableOption "SSH system configuration"; }; config = lib.mkIf cfg.enable { environment.systemPackages = with pkgs; [ openssh # OpenSSH client and server ]; programs.ssh.startAgent = false; services.gnome.gcr-ssh-agent.enable = false; }; }