# Improve DE performance. { lib, config, ... }: with lib; let cfg = config.module.realtime; in { options = { module.realtime.enable = mkEnableOption "Realtime access."; }; config = mkIf cfg.enable { security.pam.loginLimits = [ { domain = "@users"; item = "rtprio"; type = "-"; value = 1; } ]; }; }