chore: Remove redundant files, simplify README, fix CI for Python 3.14

- Remove test_legacy_python.py, test_llm_load.py, benchmark/plot.png
- Add benchmark artifacts to .gitignore
- Simplify README to install + features + doc links
- Pin CI interpreters to 3.11-3.13 (PyO3 0.24 doesn't support 3.14)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ingim

.github/workflows/CI.yml

@@ -45,7 +45,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: ${{ matrix.platform.target }}
-          args: --release --out dist --find-interpreter
+          args: --release --out dist --interpreter 3.11 3.12 3.13
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
           manylinux: auto
       - name: Upload wheels
@@ -76,7 +76,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: ${{ matrix.platform.target }}
-          args: --release --out dist --find-interpreter
+          args: --release --out dist --interpreter 3.11 3.12 3.13
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
           manylinux: musllinux_1_2
       - name: Upload wheels
@@ -104,7 +104,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: ${{ matrix.platform.target }}
-          args: --release --out dist --find-interpreter
+          args: --release --out dist --interpreter 3.11 3.12 3.13
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
       - name: Upload wheels
         uses: actions/upload-artifact@v4
@@ -128,7 +128,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: ${{ matrix.platform.target }}
-          args: --release --out dist --find-interpreter
+          args: --release --out dist --interpreter 3.11 3.12 3.13
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
       - name: Upload wheels
         uses: actions/upload-artifact@v4

.gitignore

@@ -46,6 +46,10 @@ python/ztensor/ztensor/
 
 *.tmp
 bench_out/
+benchmark/bench_out/
+benchmark/*.npz
+benchmark/*.png
+.pytest_cache/
 
 # Docusaurus
 website/node_modules/

README.md

@@ -4,78 +4,29 @@
 [![PyPI](https://img.shields.io/pypi/v/ztensor.svg)](https://pypi.org/project/ztensor/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
-Simple tensor serialization format
-
-## Key Features
-
-- **Simple Spec** — Minimalist [spec](SPEC.md) for easy parsing.
-- **Zero-Copy Access** — Instant memory-mapping (mmap) with no extra RAM copying overhead.
-- **Efficient Writes** — Supports streaming and append-only operations without rewriting files.
-- **Future-Proof** — Decouples physical storage from logical representation for long-term compatibility.
-
-## Tools
-
-- **Rust Core** — High-performance, SIMD-aligned implementation.
-- **Python API** — First-class bindings for **NumPy** and **PyTorch**.
-- **Universal Converters** — CLI tools to convert **SafeTensors**, **GGUF**, **Pickle**, **NumPy (.npz)**, **ONNX**, and **HDF5** files.
-
-## Comparison
-
-| Feature | **zTensor** | SafeTensors | GGUF | Pickle | HDF5 |
-| :--- | :---: | :---: | :---: | :---: | :---: |
-| **Zero-Copy Read** | ✅ | ✅ | ✅ | ❌ | ⚠️ |
-| **Safe (No Exec)** | ✅ | ✅ | ✅ | ❌ | ✅ |
-| **Streaming / Append** | ✅ | ❌ | ❌ | ❌ | ✅ |
-| **Sparse Tensors** | ✅ | ❌ | ❌ | ✅ | ✅ |
-| **Compression** | ✅ | ❌ | ❌ | ❌ | ✅ |
-| **Quantization** | ✅ | ✅ | ✅ | ✅ | ✅ |
-| **Parser Complexity** | 🟢 Low | 🟢 Low | 🟡 Med | 🔴 High | 🔴 High |
-
-## Benchmark
-
-![benchmark](benchmark/plot.png)
-
-See [benchmark](benchmark/bench.py) for more details.
+A simple, safe tensor serialization format with zero-copy reads, streaming writes, and built-in compression.
 
 ## Installation
 
-### Python
-
 ```bash
-pip install ztensor
+pip install ztensor           # Python
+cargo add ztensor              # Rust
+cargo install ztensor-cli     # CLI
 ```
 
-See the [Python docs](https://pie-project.github.io/ztensor/python) for the full API reference.
-
-### Rust
-
-```toml
-[dependencies]
-ztensor = "1.2"
-```
-
-See the [Rust docs](https://pie-project.github.io/ztensor/rust) or [docs.rs](https://docs.rs/ztensor) for the full API reference.
-
-### CLI
-
-```bash
-cargo install ztensor-cli
-```
-
-See the [CLI docs](https://pie-project.github.io/ztensor/cli) for usage details.
-
-## Supported Data Types
+## Features
 
-| Type | Description |
-|------|-------------|
-| `float32`, `float16`, `bfloat16`, `float64` | Floating point |
-| `int8`, `int16`, `int32`, `int64` | Signed integers |
-| `uint8`, `uint16`, `uint32`, `uint64` | Unsigned integers |
-| `bool` | Boolean |
+- Zero-copy memory-mapped reads
+- Streaming, append-only writes
+- Zstd compression and checksums
+- Dense, sparse (CSR/COO), and quantized tensors
+- Convert from SafeTensors, GGUF, Pickle, NumPy, ONNX, and HDF5
 
-## File Format
+## Documentation
 
-See [SPEC.md](SPEC.md) for the complete specification.
+- [Website](https://pie-project.github.io/ztensor/) — guides, API reference, benchmarks
+- [Spec](SPEC.md) — file format specification
+- [docs.rs](https://docs.rs/ztensor) — Rust API docs
 
 ## License