{pkgs, ...}: { # Beep as soon as possible in the initrd boot.initrd = { kernelModules = ["pcspkr"]; extraFiles.beep.source = pkgs.beep; postDeviceCommands = "/beep/bin/beep -f 3000 -l 50 -r 2"; }; /* systemd.services.startupBeep = { description = "Beep when system started booting"; wantedBy = [ "sysinit.target" ]; script = "${pkgs.beep}/bin/beep -f 3000 -l 50 -r 2"; serviceConfig = { Type = "oneshot"; }; }; */ }