feat(kokoro): add support for l4t devices (#6322)

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

.github/workflows/backend.yml

@@ -489,6 +489,18 @@ jobs:
             backend: "diffusers"
             dockerfile: "./backend/Dockerfile.python"
             context: "./backend"
+          - build-type: 'l4t'
+            cuda-major-version: "12"
+            cuda-minor-version: "0"
+            platforms: 'linux/arm64'
+            tag-latest: 'auto'
+            tag-suffix: '-gpu-nvidia-l4t-kokoro'
+            runs-on: 'ubuntu-24.04-arm'
+            base-image: "nvcr.io/nvidia/l4t-jetpack:r36.4.0"
+            skip-drivers: 'true'
+            backend: "kokoro"
+            dockerfile: "./backend/Dockerfile.python"
+            context: "./backend"
           # SYCL additional backends
           - build-type: 'intel'
             cuda-major-version: ""

backend/index.yaml

@@ -270,6 +270,7 @@
     nvidia: "cuda12-kokoro"
     intel: "intel-kokoro"
     amd: "rocm-kokoro"
+    nvidia-l4t: "nvidia-l4t-kokoro"
 - &coqui
   urls:
     - https://github.com/idiap/coqui-ai-TTS
@@ -1049,6 +1050,7 @@
     nvidia: "cuda12-kokoro-development"
     intel: "intel-kokoro-development"
     amd: "rocm-kokoro-development"
+    nvidia-l4t: "nvidia-l4t-kokoro-development"
 - !!merge <<: *kokoro
   name: "cuda11-kokoro-development"
   uri: "quay.io/go-skynet/local-ai-backends:master-gpu-nvidia-cuda-11-kokoro"
@@ -1074,6 +1076,16 @@
   uri: "quay.io/go-skynet/local-ai-backends:master-gpu-intel-kokoro"
   mirrors:
     - localai/localai-backends:master-gpu-intel-kokoro
+- !!merge <<: *kokoro
+  name: "nvidia-l4t-kokoro"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-gpu-nvidia-l4t-kokoro"
+  mirrors:
+    - localai/localai-backends:latest-gpu-nvidia-l4t-kokoro
+- !!merge <<: *kokoro
+  name: "nvidia-l4t-kokoro-development"
+  uri: "quay.io/go-skynet/local-ai-backends:master-gpu-nvidia-l4t-kokoro"
+  mirrors:
+    - localai/localai-backends:master-gpu-nvidia-l4t-kokoro
 - !!merge <<: *kokoro
   name: "cuda11-kokoro"
   uri: "quay.io/go-skynet/local-ai-backends:latest-gpu-nvidia-cuda-11-kokoro"

backend/python/kokoro/requirements-l4t.txt

@@ -0,0 +1,7 @@
+--extra-index-url https://pypi.jetson-ai-lab.io/jp6/cu126/
+torch
+torchaudio
+transformers
+accelerate
+kokoro
+soundfile