feat(diffusers): add MPS version (#6121)

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

backend/index.yaml

@@ -184,6 +184,7 @@
     intel: "intel-diffusers"
     amd: "rocm-diffusers"
     nvidia-l4t: "nvidia-l4t-diffusers"
+    metal: "metal-diffusers"
 - &exllama2
   name: "exllama2"
   urls:
@@ -875,6 +876,7 @@
     intel: "intel-diffusers-development"
     amd: "rocm-diffusers-development"
     nvidia-l4t: "nvidia-l4t-diffusers-development"
+    metal: "metal-diffusers-development"
 - !!merge <<: *diffusers
   name: "nvidia-l4t-diffusers"
   uri: "quay.io/go-skynet/local-ai-backends:latest-gpu-nvidia-l4t-diffusers"
@@ -925,6 +927,16 @@
   uri: "quay.io/go-skynet/local-ai-backends:master-gpu-intel-diffusers"
   mirrors:
     - localai/localai-backends:master-gpu-intel-diffusers
+- !!merge <<: *diffusers
+  name: "metal-diffusers"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-diffusers"
+  mirrors:
+    - localai/localai-backends:latest-metal-darwin-arm64-diffusers
+- !!merge <<: *diffusers
+  name: "metal-diffusers-development"
+  uri: "quay.io/go-skynet/local-ai-backends:master-metal-darwin-arm64-diffusers"
+  mirrors:
+    - localai/localai-backends:master-metal-darwin-arm64-diffusers
   ## exllama2
 - !!merge <<: *exllama2
   name: "exllama2-development"

backend/python/diffusers/requirements-mps.txt

@@ -0,0 +1,10 @@
+torch==2.7.1
+torchvision==0.22.1
+git+https://github.com/huggingface/diffusers
+opencv-python
+transformers
+accelerate
+compel
+peft
+sentencepiece
+optimum-quanto

backend/python/diffusers/run.sh

@@ -12,4 +12,6 @@ if [ -d "/opt/intel" ]; then
     export XPU=1
 fi
 
+export PYTORCH_ENABLE_MPS_FALLBACK=1
+
 startBackend $@