diff options
Diffstat (limited to 'nixos/modules/services/home-automation/wyoming/openwakeword.nix')
-rw-r--r-- | nixos/modules/services/home-automation/wyoming/openwakeword.nix | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/nixos/modules/services/home-automation/wyoming/openwakeword.nix b/nixos/modules/services/home-automation/wyoming/openwakeword.nix new file mode 100644 index 0000000000000..252f70be2baa4 --- /dev/null +++ b/nixos/modules/services/home-automation/wyoming/openwakeword.nix @@ -0,0 +1,163 @@ +{ config +, lib +, pkgs +, ... +}: + +let + cfg = config.services.wyoming.openwakeword; + + inherit (lib) + concatStringsSep + concatMapStringsSep + escapeShellArgs + mkOption + mdDoc + mkEnableOption + mkIf + mkPackageOption + mkRemovedOptionModule + types + ; + + inherit (builtins) + toString + ; + +in + +{ + imports = [ + (mkRemovedOptionModule [ "services" "wyoming" "openwakeword" "models" ] "Configuring models has been removed, they are now dynamically discovered and loaded at runtime") + ]; + + meta.buildDocsInSandbox = false; + + options.services.wyoming.openwakeword = with types; { + enable = mkEnableOption (mdDoc "Wyoming openWakeWord server"); + + package = mkPackageOption pkgs "wyoming-openwakeword" { }; + + uri = mkOption { + type = strMatching "^(tcp|unix)://.*$"; + default = "tcp://0.0.0.0:10400"; + example = "tcp://192.0.2.1:5000"; + description = mdDoc '' + URI to bind the wyoming server to. + ''; + }; + + customModelsDirectories = mkOption { + type = listOf types.path; + default = []; + description = lib.mdDoc '' + Paths to directories with custom wake word models (*.tflite model files). + ''; + }; + + preloadModels = mkOption { + type = listOf str; + default = [ + "ok_nabu" + ]; + example = [ + # wyoming_openwakeword/models/*.tflite + "alexa" + "hey_jarvis" + "hey_mycroft" + "hey_rhasspy" + "ok_nabu" + ]; + description = mdDoc '' + List of wake word models to preload after startup. + ''; + }; + + threshold = mkOption { + type = float; + default = 0.5; + description = mdDoc '' + Activation threshold (0-1), where higher means fewer activations. + + See trigger level for the relationship between activations and + wake word detections. + ''; + apply = toString; + }; + + triggerLevel = mkOption { + type = int; + default = 1; + description = mdDoc '' + Number of activations before a detection is registered. + + A higher trigger level means fewer detections. + ''; + apply = toString; + }; + + extraArgs = mkOption { + type = listOf str; + default = [ ]; + description = mdDoc '' + Extra arguments to pass to the server commandline. + ''; + apply = escapeShellArgs; + }; + }; + + config = mkIf cfg.enable { + systemd.services."wyoming-openwakeword" = { + description = "Wyoming openWakeWord server"; + after = [ + "network-online.target" + ]; + wantedBy = [ + "multi-user.target" + ]; + serviceConfig = { + DynamicUser = true; + User = "wyoming-openwakeword"; + # https://github.com/home-assistant/addons/blob/master/openwakeword/rootfs/etc/s6-overlay/s6-rc.d/openwakeword/run + ExecStart = concatStringsSep " " [ + "${cfg.package}/bin/wyoming-openwakeword" + "--uri ${cfg.uri}" + (concatMapStringsSep " " (model: "--preload-model ${model}") cfg.preloadModels) + (concatMapStringsSep " " (dir: "--custom-model-dir ${toString dir}") cfg.customModelsDirectories) + "--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 = "all"; # reads /proc/cpuinfo + RestrictAddressFamilies = [ + "AF_INET" + "AF_INET6" + "AF_UNIX" + ]; + RestrictNamespaces = true; + RestrictRealtime = true; + RuntimeDirectory = "wyoming-openwakeword"; + SystemCallArchitectures = "native"; + SystemCallFilter = [ + "@system-service" + "~@privileged" + ]; + UMask = "0077"; + }; + }; + }; +} |