FreeBSD support

Dux Shell contains native FreeBSD code paths and does not require PulseAudio, PipeWire, systemd, NetworkManager, or Linux sysfs to provide its core shell features.

Native FreeBSD integrations

Audio: sound(4) / mixer(8). DMS enumerates all pcmN mixers, supports output/input volume and mute, and can change the default PCM device. PipeWire is dynamically loaded only on non-FreeBSD systems, so a FreeBSD session does not attempt to create a PipeWire context. Rapid volume changes are coalesced to keep the OSD responsive.
Wi-Fi: the DMS daemon has a wpa_supplicant backend.
Brightness: native FreeBSD backlight/devd support in the DMS daemon.
Battery: UPower is used when useful; acpiconf(8) plus hw.acpi.acline is the native fallback.
Power: acpiconf(8) for suspend and shutdown(8) for reboot/poweroff.
Users: pw(8).
Package updates: pkg(8).
Compositor/socket discovery: sockstat(1) where Linux would use /proc.
Greeter state: FreeBSD rc service detection for greetd.
Sessions: elogind/loginctl is used when installed; otherwise DMS exposes the current session without repeatedly executing a missing Linux command.

Recommended runtime tools

Install the Wayland/desktop tools used by the features you enable (for example Quickshell, grim/slurp, wl-clipboard, and a notification/audio stack as desired) from FreeBSD packages/ports. DMS's native audio path itself only needs the base system mixer utility.

For session switching and login-manager integration, install/use elogind so loginctl is available. Without elogind, locking and the current-session shell remain usable, but switching between already-running graphical sessions is not provided by the base system.

FreeBSD limitations that DMS should not fake

FreeBSD ACPI S4 hibernation is hardware/kernel dependent and is not presented as generally available by DMS.
Charge thresholds are vendor-specific; the Linux /sys/class/power_supply controls are hidden on FreeBSD.
Changing the default pcmN affects newly opened native audio streams. Moving an already-open stream between devices requires an audio routing layer such as virtual_oss.
Power-profile-daemon and Linux rfkill semantics are not assumed. Features backed only by those Linux services are hidden/degraded rather than invoking Linux commands on FreeBSD.