Update model card: rlx_bundle merge layout and just fetch recipe

README.md

@@ -25,15 +25,24 @@ RLX compile bundle for [KittenML/kitten-tts-mini-0.8](https://huggingface.co/Kit
 
 ## Quick start
 
+```bash
+# From rlx-models root
+just fetch-kittentts
+just fetch-kitten-rlx-bundle
+just kittentts -- --native --ipa "həˈloʊ" --voice Jasper --out-wav out.wav
+```
+
+Manual download:
+
 ```bash
 # 1. Upstream ONNX checkpoint + voices
-huggingface-cli download KittenML/kitten-tts-mini-0.8 --local-dir .cache/kittentts-mini-0.8
+hf download KittenML/kitten-tts-mini-0.8 --local-dir .cache/kittentts-mini-0.8
 
-# 2. This RLX bundle (merge into the same directory)
-huggingface-cli download eugenehp/kitten-tts-mini-0.8-rlx --local-dir .cache/kittentts-mini-0.8
+# 2. This RLX bundle (into rlx_bundle/ subdirectory)
+hf download eugenehp/kitten-tts-mini-0.8-rlx --local-dir .cache/kittentts-mini-0.8/rlx_bundle
 
-# 3. Sentinel file for native auto-detection (same bytes as weights.safetensors)
-ln -sf weights.safetensors .cache/kittentts-mini-0.8/model.safetensors
+# 3. Sentinel file for native auto-detection
+ln -sf rlx_bundle/weights.safetensors .cache/kittentts-mini-0.8/model.safetensors
 
 # 4. Synthesize (from rlx-models checkout)
 cargo run -p rlx-kittentts --features native --release -- \
@@ -41,16 +50,6 @@ cargo run -p rlx-kittentts --features native --release -- \
   --native --ipa "həˈloʊ" --voice Jasper --out-wav out.wav
 ```
 
-Or with `just`:
-
-```bash
-just fetch-kittentts
-huggingface-cli download eugenehp/kitten-tts-mini-0.8-rlx \
-  --local-dir .cache/kittentts-mini-0.8
-ln -sf weights.safetensors .cache/kittentts-mini-0.8/model.safetensors
-just kittentts -- --native --ipa "həˈloʊ" --out-wav /tmp/out.wav
-```
-
 ## Layout after merge
 
 ```text
@@ -58,13 +57,14 @@ just kittentts -- --native --ipa "həˈloʊ" --out-wav /tmp/out.wav
   config.json              # from KittenML
   voices.npz               # from KittenML
   kitten_tts_mini_v0_8.onnx
-  model.safetensors        # symlink → weights.safetensors
-  graph.json               # this repo
-  manifest.json
-  weights.safetensors
+  model.safetensors        # symlink → rlx_bundle/weights.safetensors
+  rlx_bundle/              # this repo
+    graph.json
+    manifest.json
+    weights.safetensors
 ```
 
-Alternatively, keep `rlx_bundle/` as a subdirectory and set `RLX_ONNX_BUNDLE` to that path.
+Alternatively, set `RLX_ONNX_BUNDLE` to the bundle directory path.
 
 ## Environment variables
 
@@ -74,6 +74,7 @@ Alternatively, keep `rlx_bundle/` as a subdirectory and set `RLX_ONNX_BUNDLE` to
 | `RLX_ONNX_BUNDLE` | Bundle directory if not co-located with weights |
 | `KITTEN_RLX_WEIGHTS` | Directory containing `model.safetensors` |
 | `KITTEN_RLX_BUNDLE` | Legacy alias for `RLX_ONNX_BUNDLE` |
+| `KITTEN_RLX_HF_REPO` | Override RLX bundle HF repo (default: `eugenehp/kitten-tts-mini-0.8-rlx`) |
 
 ## Re-export