fix(gallery): correct meta-backend definitions in backend/index.yaml

Several backends shipping per-platform images were misconfigured so the
per-platform variant could never be auto-selected:

- silero-vad, piper, kitten-tts, local-store: the anchor was a concrete
  (had a uri) despite having a metal sibling. Converted each anchor to a
  meta (capabilities default->cpu-<name>, metal->metal-<name>), added a
  cpu-<name> concrete carrying the original uri, renamed the existing
  <name>-development concrete to cpu-<name>-development, and added a
  <name>-development meta.

- mlx, mlx-audio, mlx-vlm, mlx-distributed: the anchor had BOTH a uri and
  a capabilities map referencing a metal-<name> target that did not exist.
  Removed the uri/mirrors from the anchor (and its -development variant),
  added the missing metal-<name> and metal-<name>-development concretes,
  and gave each -development meta an explicit -development capability map
  (it previously inherited the non-dev map from the anchor).

- diffusers, kokoro: nvidia-l4t-cuda-12 pointed at a non-existent
  nvidia-l4t-arm64-<name> concrete; repointed to the existing
  nvidia-l4t-<name>.

- coqui: nvidia-cuda-13 pointed at a non-existent cuda13-coqui; removed the
  key so cuda13 falls back to nvidia/default.

locate-anything is left unchanged: its capabilities reference
*-locate-anything-cpp concretes that do not exist anywhere in the gallery
(no concretes, no images), so it appears to be an intentionally
unpublished/WIP entry for a maintainer to complete.

Assisted-by: claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

Author: mudler

backend/index.yaml

@@ -455,12 +455,9 @@
     nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-vllm-omni"
 - &mlx
   name: "mlx"
-  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-mlx"
   icon: https://avatars.githubusercontent.com/u/102832242?s=200&v=4
   urls:
     - https://github.com/ml-explore/mlx-lm
-  mirrors:
-    - localai/localai-backends:latest-metal-darwin-arm64-mlx
   license: MIT
   description: |
       Run LLMs with MLX
@@ -479,12 +476,9 @@
     nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-mlx"
 - &mlx-vlm
   name: "mlx-vlm"
-  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-mlx-vlm"
   icon: https://avatars.githubusercontent.com/u/102832242?s=200&v=4
   urls:
     - https://github.com/Blaizzy/mlx-vlm
-  mirrors:
-    - localai/localai-backends:latest-metal-darwin-arm64-mlx-vlm
   license: MIT
   description: |
       Run Vision-Language Models with MLX
@@ -505,12 +499,9 @@
     nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-mlx-vlm"
 - &mlx-audio
   name: "mlx-audio"
-  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-mlx-audio"
   icon: https://avatars.githubusercontent.com/u/102832242?s=200&v=4
   urls:
     - https://github.com/Blaizzy/mlx-audio
-  mirrors:
-    - localai/localai-backends:latest-metal-darwin-arm64-mlx-audio
   license: MIT
   description: |
       Run Audio Models with MLX
@@ -531,12 +522,9 @@
     nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-mlx-audio"
 - &mlx-distributed
   name: "mlx-distributed"
-  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-mlx-distributed"
   icon: https://avatars.githubusercontent.com/u/102832242?s=200&v=4
   urls:
     - https://github.com/ml-explore/mlx-lm
-  mirrors:
-    - localai/localai-backends:latest-metal-darwin-arm64-mlx-distributed
   license: MIT
   description: |
       Run distributed LLM inference with MLX across multiple Apple Silicon Macs
@@ -632,7 +620,7 @@
     default: "cpu-diffusers"
     nvidia-cuda-13: "cuda13-diffusers"
     nvidia-cuda-12: "cuda12-diffusers"
-    nvidia-l4t-cuda-12: "nvidia-l4t-arm64-diffusers"
+    nvidia-l4t-cuda-12: "nvidia-l4t-diffusers"
     nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-diffusers"
 - &ace-step
   name: "ace-step"
@@ -854,7 +842,7 @@
     metal: "metal-kokoro"
     nvidia-cuda-13: "cuda13-kokoro"
     nvidia-cuda-12: "cuda12-kokoro"
-    nvidia-l4t-cuda-12: "nvidia-l4t-arm64-kokoro"
+    nvidia-l4t-cuda-12: "nvidia-l4t-kokoro"
 - &kokoros
   icon: https://avatars.githubusercontent.com/u/166769057?v=4
   description: |
@@ -897,7 +885,6 @@
     intel: "intel-coqui"
     amd: "rocm-coqui"
     metal: "metal-coqui"
-    nvidia-cuda-13: "cuda13-coqui"
     nvidia-cuda-12: "cuda12-coqui"
   icon: https://avatars.githubusercontent.com/u/1338804?s=200&v=4
 - &outetts
@@ -1147,19 +1134,19 @@
   icon: https://avatars.githubusercontent.com/u/151010778?s=200&v=4
 - &piper
   name: "piper"
-  uri: "quay.io/go-skynet/local-ai-backends:latest-piper"
   icon: https://github.com/OHF-Voice/piper1-gpl/raw/main/etc/logo.png
   urls:
     - https://github.com/rhasspy/piper
     - https://github.com/mudler/go-piper
-  mirrors:
-    - localai/localai-backends:latest-piper
   license: MIT
   description: |
      A fast, local neural text to speech system
   tags:
     - text-to-speech
     - TTS
+  capabilities:
+    default: "cpu-piper"
+    metal: "metal-piper"
 - &opus
   name: "opus"
   alias: "opus"
@@ -1180,12 +1167,12 @@
     - CPU
 - &silero-vad
   name: "silero-vad"
-  uri: "quay.io/go-skynet/local-ai-backends:latest-cpu-silero-vad"
   icon: https://user-images.githubusercontent.com/12515440/89997349-b3523080-dc94-11ea-9906-ca2e8bc50535.png
   urls:
     - https://github.com/snakers4/silero-vad
-  mirrors:
-    - localai/localai-backends:latest-cpu-silero-vad
+  capabilities:
+    default: "cpu-silero-vad"
+    metal: "metal-silero-vad"
   description: |
     Silero VAD: pre-trained enterprise-grade Voice Activity Detector.
     Silero VAD is a voice activity detection model that can be used to detect whether a given audio contains speech or not.
@@ -1196,9 +1183,6 @@
     - CPU
 - &local-store
   name: "local-store"
-  uri: "quay.io/go-skynet/local-ai-backends:latest-cpu-local-store"
-  mirrors:
-    - localai/localai-backends:latest-cpu-local-store
   urls:
     - https://github.com/mudler/LocalAI
   description: |
@@ -1209,11 +1193,11 @@
     - open-source
     - CPU
   license: MIT
+  capabilities:
+    default: "cpu-local-store"
+    metal: "metal-local-store"
 - &kitten-tts
   name: "kitten-tts"
-  uri: "quay.io/go-skynet/local-ai-backends:latest-kitten-tts"
-  mirrors:
-    - localai/localai-backends:latest-kitten-tts
   urls:
     - https://github.com/KittenML/KittenTTS
   description: |
@@ -1222,6 +1206,9 @@
     - text-to-speech
     - TTS
   license: apache-2.0
+  capabilities:
+    default: "cpu-kitten-tts"
+    metal: "metal-kitten-tts"
 - &neutts
   name: "neutts"
   urls:
@@ -1347,25 +1334,89 @@
   mirrors:
     - localai/localai-backends:master-gpu-rocm-hipblas-neutts
 - !!merge <<: *mlx
-  name: "mlx-development"
+  name: "metal-mlx"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-mlx"
+  mirrors:
+    - localai/localai-backends:latest-metal-darwin-arm64-mlx
+- !!merge <<: *mlx
+  name: "metal-mlx-development"
   uri: "quay.io/go-skynet/local-ai-backends:master-metal-darwin-arm64-mlx"
   mirrors:
     - localai/localai-backends:master-metal-darwin-arm64-mlx
+- !!merge <<: *mlx
+  name: "mlx-development"
+  capabilities:
+    default: "cpu-mlx-development"
+    nvidia: "cuda12-mlx-development"
+    metal: "metal-mlx-development"
+    nvidia-cuda-12: "cuda12-mlx-development"
+    nvidia-cuda-13: "cuda13-mlx-development"
+    nvidia-l4t: "nvidia-l4t-mlx-development"
+    nvidia-l4t-cuda-12: "nvidia-l4t-mlx-development"
+    nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-mlx-development"
 - !!merge <<: *mlx-vlm
-  name: "mlx-vlm-development"
+  name: "metal-mlx-vlm"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-mlx-vlm"
+  mirrors:
+    - localai/localai-backends:latest-metal-darwin-arm64-mlx-vlm
+- !!merge <<: *mlx-vlm
+  name: "metal-mlx-vlm-development"
   uri: "quay.io/go-skynet/local-ai-backends:master-metal-darwin-arm64-mlx-vlm"
   mirrors:
     - localai/localai-backends:master-metal-darwin-arm64-mlx-vlm
+- !!merge <<: *mlx-vlm
+  name: "mlx-vlm-development"
+  capabilities:
+    default: "cpu-mlx-vlm-development"
+    nvidia: "cuda12-mlx-vlm-development"
+    metal: "metal-mlx-vlm-development"
+    nvidia-cuda-12: "cuda12-mlx-vlm-development"
+    nvidia-cuda-13: "cuda13-mlx-vlm-development"
+    nvidia-l4t: "nvidia-l4t-mlx-vlm-development"
+    nvidia-l4t-cuda-12: "nvidia-l4t-mlx-vlm-development"
+    nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-mlx-vlm-development"
 - !!merge <<: *mlx-audio
-  name: "mlx-audio-development"
+  name: "metal-mlx-audio"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-mlx-audio"
+  mirrors:
+    - localai/localai-backends:latest-metal-darwin-arm64-mlx-audio
+- !!merge <<: *mlx-audio
+  name: "metal-mlx-audio-development"
   uri: "quay.io/go-skynet/local-ai-backends:master-metal-darwin-arm64-mlx-audio"
   mirrors:
     - localai/localai-backends:master-metal-darwin-arm64-mlx-audio
+- !!merge <<: *mlx-audio
+  name: "mlx-audio-development"
+  capabilities:
+    default: "cpu-mlx-audio-development"
+    nvidia: "cuda12-mlx-audio-development"
+    metal: "metal-mlx-audio-development"
+    nvidia-cuda-12: "cuda12-mlx-audio-development"
+    nvidia-cuda-13: "cuda13-mlx-audio-development"
+    nvidia-l4t: "nvidia-l4t-mlx-audio-development"
+    nvidia-l4t-cuda-12: "nvidia-l4t-mlx-audio-development"
+    nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-mlx-audio-development"
 - !!merge <<: *mlx-distributed
-  name: "mlx-distributed-development"
+  name: "metal-mlx-distributed"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-mlx-distributed"
+  mirrors:
+    - localai/localai-backends:latest-metal-darwin-arm64-mlx-distributed
+- !!merge <<: *mlx-distributed
+  name: "metal-mlx-distributed-development"
   uri: "quay.io/go-skynet/local-ai-backends:master-metal-darwin-arm64-mlx-distributed"
   mirrors:
     - localai/localai-backends:master-metal-darwin-arm64-mlx-distributed
+- !!merge <<: *mlx-distributed
+  name: "mlx-distributed-development"
+  capabilities:
+    default: "cpu-mlx-distributed-development"
+    nvidia: "cuda12-mlx-distributed-development"
+    metal: "metal-mlx-distributed-development"
+    nvidia-cuda-12: "cuda12-mlx-distributed-development"
+    nvidia-cuda-13: "cuda13-mlx-distributed-development"
+    nvidia-l4t: "nvidia-l4t-mlx-distributed-development"
+    nvidia-l4t-cuda-12: "nvidia-l4t-mlx-distributed-development"
+    nvidia-l4t-cuda-13: "cuda13-nvidia-l4t-arm64-mlx-distributed-development"
 ## mlx
 - !!merge <<: *mlx
   name: "cpu-mlx"
@@ -1571,10 +1622,20 @@
   mirrors:
     - localai/localai-backends:master-nvidia-l4t-cuda-13-arm64-mlx-distributed
 - !!merge <<: *kitten-tts
-  name: "kitten-tts-development"
+  name: "cpu-kitten-tts"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-kitten-tts"
+  mirrors:
+    - localai/localai-backends:latest-kitten-tts
+- !!merge <<: *kitten-tts
+  name: "cpu-kitten-tts-development"
   uri: "quay.io/go-skynet/local-ai-backends:master-kitten-tts"
   mirrors:
     - localai/localai-backends:master-kitten-tts
+- !!merge <<: *kitten-tts
+  name: "kitten-tts-development"
+  capabilities:
+    default: "cpu-kitten-tts-development"
+    metal: "metal-kitten-tts-development"
 - !!merge <<: *kitten-tts
   name: "metal-kitten-tts"
   uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-kitten-tts"
@@ -1586,11 +1647,23 @@
   mirrors:
     - localai/localai-backends:master-metal-darwin-arm64-kitten-tts
 - !!merge <<: *local-store
-  name: "local-store-development"
+  name: "cpu-local-store"
+  alias: "local-store"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-cpu-local-store"
+  mirrors:
+    - localai/localai-backends:latest-cpu-local-store
+- !!merge <<: *local-store
+  name: "cpu-local-store-development"
   alias: "local-store"
   uri: "quay.io/go-skynet/local-ai-backends:master-cpu-local-store"
   mirrors:
     - localai/localai-backends:master-cpu-local-store
+- !!merge <<: *local-store
+  name: "local-store-development"
+  alias: "local-store"
+  capabilities:
+    default: "cpu-local-store-development"
+    metal: "metal-local-store-development"
 - !!merge <<: *local-store
   name: "metal-local-store"
   uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-local-store"
@@ -1618,10 +1691,20 @@
   mirrors:
     - localai/localai-backends:master-metal-darwin-arm64-opus
 - !!merge <<: *silero-vad
-  name: "silero-vad-development"
+  name: "cpu-silero-vad"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-cpu-silero-vad"
+  mirrors:
+    - localai/localai-backends:latest-cpu-silero-vad
+- !!merge <<: *silero-vad
+  name: "cpu-silero-vad-development"
   uri: "quay.io/go-skynet/local-ai-backends:master-cpu-silero-vad"
   mirrors:
     - localai/localai-backends:master-cpu-silero-vad
+- !!merge <<: *silero-vad
+  name: "silero-vad-development"
+  capabilities:
+    default: "cpu-silero-vad-development"
+    metal: "metal-silero-vad-development"
 - !!merge <<: *silero-vad
   name: "metal-silero-vad"
   uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-silero-vad"
@@ -1633,10 +1716,20 @@
   mirrors:
     - localai/localai-backends:master-metal-darwin-arm64-silero-vad
 - !!merge <<: *piper
-  name: "piper-development"
+  name: "cpu-piper"
+  uri: "quay.io/go-skynet/local-ai-backends:latest-piper"
+  mirrors:
+    - localai/localai-backends:latest-piper
+- !!merge <<: *piper
+  name: "cpu-piper-development"
   uri: "quay.io/go-skynet/local-ai-backends:master-piper"
   mirrors:
     - localai/localai-backends:master-piper
+- !!merge <<: *piper
+  name: "piper-development"
+  capabilities:
+    default: "cpu-piper-development"
+    metal: "metal-piper-development"
 - !!merge <<: *piper
   name: "metal-piper"
   uri: "quay.io/go-skynet/local-ai-backends:latest-metal-darwin-arm64-piper"