From f00a7cb75e6b97835ec881e25fcd7a525fdee428 Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Wed, 3 Sep 2025 05:22:37 +0200
Subject: [PATCH] nixos/wyoming/piper: add per-server CUDA toggle

This is now possible with the underlying piper 1.3.0 upgrade.
---
 .../services/home-automation/wyoming/piper.nix      | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/nixos/modules/services/home-automation/wyoming/piper.nix b/nixos/modules/services/home-automation/wyoming/piper.nix
index e97f99b89ce1..b332c34bd926 100644
--- a/nixos/modules/services/home-automation/wyoming/piper.nix
+++ b/nixos/modules/services/home-automation/wyoming/piper.nix
@@ -10,6 +10,7 @@ let
   cfg = config.services.wyoming.piper;
 
   inherit (lib)
+    literalExpression
     mkOption
     mkEnableOption
     mkPackageOption
@@ -100,6 +101,15 @@ in
                 default = true;
               };
 
+              useCUDA = mkOption {
+                type = bool;
+                default = config.cudaSupport;
+                defaultText = literalExpression "config.cudaSupport";
+                description = ''
+                  Whether to accelerate the underlying onnxruntime library with CUDA.
+                '';
+              };
+
               extraArgs = mkOption {
                 type = listOf str;
                 default = [ ];
@@ -165,6 +175,9 @@ in
               ++ lib.optionals options.streaming [
                 "--streaming"
               ]
+              ++ lib.optionals options.cuda [
+                "--use-cuda"
+              ]
               ++ options.extraArgs
             );
             CapabilityBoundingSet = "";