mirror of
https://github.com/ryan4yin/nix-config.git
synced 2026-11-13 12:13:36 +01:00
Ryan Yin
c732f3b9bb
A default-node hook selects wivrn.sink/wivrn.source whenever they exist, so the polling wivrn-audio.nu unit, its saved state and `just vr-audio` go away. Streams follow via linking.follow-default-target. Assisted-by: Claude Code (claude-opus-5-5)
76 lines
2.6 KiB
Nix
76 lines
2.6 KiB
Nix
{ pkgs, ... }:
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{
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# WiVRn supplies the OpenXR runtime; xrizer translates OpenVR games.
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# The RTX 4090 is the only GPU, so the server needs no GPU environment of its own.
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services.wivrn = {
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enable = true;
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autoStart = false; # Start only when requested with just vr.
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# Use the unmodified nixpkgs package without installing its standalone GUI.
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# This reuses the upstream build; it does not trim Qt from its dependency closure.
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package = pkgs.symlinkJoin {
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name = "wivrn-cli-${pkgs.wivrn.version}";
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inherit (pkgs.wivrn) version meta;
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paths = [ pkgs.wivrn ];
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postBuild = ''
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rm "$out/bin/wivrn-dashboard" "$out/bin/.wivrn-dashboard-wrapped"
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rm "$out/share/applications/"*.desktop
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test -x "$out/bin/wivrn-server"
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test -x "$out/bin/wivrnctl"
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test ! -e "$out/bin/wivrn-dashboard"
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for entry in "$out/share/applications/"*.desktop; do
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test ! -e "$entry"
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done
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'';
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};
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# CAP_SYS_NICE for the server. WiVRn starts games in separate units, and an
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# already running Steam client keeps its own environment.
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highPriority = true;
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steam.importOXRRuntimes = true;
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};
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# Make the headset's speaker and microphone the defaults while it is connected.
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services.pipewire.wireplumber = {
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extraScripts."wivrn-default.lua" = ''
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local wanted = { ["audio.sink"] = "wivrn.sink", ["audio.source"] = "wivrn.source" }
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SimpleEventHook {
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name = "custom/wivrn-default",
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after = { "default-nodes/find-best-default-node" },
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before = { "default-nodes/apply-default-node" },
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interests = {
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EventInterest { Constraint { "event.type", "=", "select-default-node" } },
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},
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execute = function (event)
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local name = wanted [event:get_properties () ["default-node.type"]]
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local nodes = event:get_data ("available-nodes")
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for _, props in ipairs (nodes and nodes:parse () or {}) do
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if props ["node.name"] == name then
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event:set_data ("selected-node", name)
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return
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end
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end
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end
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}:register ()
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'';
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extraConfig.wivrn-default = {
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"wireplumber.components" = [
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{
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name = "wivrn-default.lua";
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type = "script/lua";
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provides = "custom.wivrn-default";
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}
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];
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"wireplumber.profiles".main."custom.wivrn-default" = "required";
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};
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};
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# Wait for the control interface used by wivrnctl before reporting success.
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systemd.user.services.wivrn.serviceConfig = {
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Type = "dbus";
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BusName = "io.github.wivrn.Server";
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TimeoutStartSec = "30s";
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};
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}
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