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|
{ config
, lib
, pkgs
, ...
}:
let
cfg = config.services.wyoming.openwakeword;
inherit (lib)
concatMapStringsSep
escapeShellArgs
mkOption
mdDoc
mkEnableOption
mkIf
mkPackageOptionMD
types
;
inherit (builtins)
toString
;
models = [
# wyoming_openwakeword/models/*.tflite
"alexa"
"hey_jarvis"
"hey_mycroft"
"hey_rhasspy"
"ok_nabu"
];
in
{
meta.buildDocsInSandbox = false;
options.services.wyoming.openwakeword = with types; {
enable = mkEnableOption (mdDoc "Wyoming openWakeWord server");
package = mkPackageOptionMD pkgs "wyoming-openwakeword" { };
uri = mkOption {
type = strMatching "^(tcp|unix)://.*$";
default = "tcp://0.0.0.0:10400";
example = "tcp://192.0.2.1:5000";
description = mdDoc ''
URI to bind the wyoming server to.
'';
};
models = mkOption {
type = listOf (enum models);
default = models;
description = mdDoc ''
List of wake word models that should be made available.
'';
};
preloadModels = mkOption {
type = listOf (enum models);
default = [
"ok_nabu"
];
description = mdDoc ''
List of wake word models to preload after startup.
'';
};
threshold = mkOption {
type = float;
default = 0.5;
description = mdDoc ''
Activation threshold (0-1), where higher means fewer activations.
See trigger level for the relationship between activations and
wake word detections.
'';
apply = toString;
};
triggerLevel = mkOption {
type = int;
default = 1;
description = mdDoc ''
Number of activations before a detection is registered.
A higher trigger level means fewer detections.
'';
apply = toString;
};
extraArgs = mkOption {
type = listOf str;
default = [ ];
description = mdDoc ''
Extra arguments to pass to the server commandline.
'';
apply = escapeShellArgs;
};
};
config = mkIf cfg.enable {
systemd.services."wyoming-openwakeword" = {
description = "Wyoming openWakeWord server";
after = [
"network-online.target"
];
wantedBy = [
"multi-user.target"
];
serviceConfig = {
DynamicUser = true;
User = "wyoming-openwakeword";
# https://github.com/home-assistant/addons/blob/master/openwakeword/rootfs/etc/s6-overlay/s6-rc.d/openwakeword/run
ExecStart = ''
${cfg.package}/bin/wyoming-openwakeword \
--uri ${cfg.uri} \
${concatMapStringsSep " " (model: "--model ${model}") cfg.models} \
${concatMapStringsSep " " (model: "--preload-model ${model}") cfg.preloadModels} \
--threshold ${cfg.threshold} \
--trigger-level ${cfg.triggerLevel} ${cfg.extraArgs}
'';
CapabilityBoundingSet = "";
DeviceAllow = "";
DevicePolicy = "closed";
LockPersonality = true;
MemoryDenyWriteExecute = true;
PrivateDevices = true;
PrivateUsers = true;
ProtectHome = true;
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectControlGroups = true;
ProtectProc = "invisible";
ProcSubset = "pid";
RestrictAddressFamilies = [
"AF_INET"
"AF_INET6"
"AF_UNIX"
];
RestrictNamespaces = true;
RestrictRealtime = true;
RuntimeDirectory = "wyoming-openwakeword";
SystemCallArchitectures = "native";
SystemCallFilter = [
"@system-service"
"~@privileged"
];
UMask = "0077";
};
};
};
}
|