COOLJAPAN

COOLJAPAN Blog

The inside story of building the largest pure-Rust sovereignty stack

234 posts

release 233 pure-rust 185 scirs2 74 rust 63 machine-learning 29 scientific-computing 24 wasm 22 simd 22 oxiarc 21 numpy 21 cuda 21 llm 16 gpu 16 compression 16 noffi 15 formal-verification 15
Mar 20, 2026 · 7 min

TenfloweRS 0.1.0 Released — Pure Rust TensorFlow, 12,949 Tests Passing

TenfloweRS is a pure-Rust alternative to TensorFlow, and this is its first stable release. It ships dual eager + graph execution, reverse-mode autodiff, 150+ research domains, and WGPU GPU acceleration — built on the SciRS2 and NumRS2 ecosystem, with no C++, CUDA-C, or Python runtime.

releasetenflowersmachine-learning
Mar 20, 2026 · 6 min

ToRSh 0.1.1 Released — A Stabilized Pure-Rust PyTorch, Now With a Model Converter

ToRSh is a PyTorch-compatible deep-learning framework in pure Rust with native tensor sharding. The 0.1.1 release hardens the 33-crate workspace onto consistent, published crates.io dependencies and adds the new torsh-convert model-converter CLI.

releasetorshdeep-learning
Mar 18, 2026 · 3 min

OptiRS 0.3.0 Released — Pure Rust ML Optimization Suite Powered by SciRS2

Production-grade machine learning optimization library with 22 optimizers (SGD→K-FAC), SIMD 2–4×, parallel 4–8×, GPU 10–50× acceleration. 251K+ SLoC, 7 crates, 1,220+ tests. Full extension of SciRS2-Core — no external deps allowed. The sovereign optimizer layer for SciRS2 and the entire COOLJAPAN ecosystem (now 21M SLoC total).

releaseoptirsml-optimization
Mar 18, 2026 · 6 min

OxiArc 0.2.5 Released — Brotli and Snappy Arrive as Brand-New Codecs, Taking OxiArc to 12 Crates

OxiArc 0.2.5 adds two brand-new compression crates — Brotli (RFC 7932, quality 0-11) and Snappy (block + framed with CRC32C) — bringing the workspace to 12 crates and 12 container formats. Plus DEFLATE/GZip/Zlib streaming with flush modes, LZW streaming, and an EntryBuilder fluent API. 1,038 tests, all passing. Pure Rust archive and compression — no C, no zlib, no libarchive.

releaseoxiarccompression
Mar 18, 2026 · 6 min

SciRS2 0.3.4 Released — A Leaner, 100% Pure Rust Dependency Tree: No zip, No GMP, No Surprises

SciRS2 0.3.4 is the pure-Rust SciPy/NumPy/scikit-learn replacement: 2.59M SLoC, 19,700+ tests, 29 workspace crates. This release upgrades OxiARC to 0.2.5 and purges the last C-library (GMP/MPFR) and the zip crate from the dependency tree for a leaner, smaller-attack-surface, 100% Pure Rust supply chain.

releasescirs2scientific-computing
Mar 17, 2026 · 5 min

OxiGDAL 0.1.2 Released — PMTiles v3 Writer, Geometry Operations, and a Unified Conversion API

OxiGDAL 0.1.2 adds a PMTiles v3 writer with Hilbert tile IDs and content dedup, a full geometry validation/operations module (centroid, area, point-in-polygon, simplify, convex hull), and a unified umbrella crate with 12-format conversion planning. Now 76 Pure Rust workspace crates, 15 format drivers, 10,935 passing tests — zero C dependencies in default features.

releaseoxigdalgdal
Mar 17, 2026 · 3 min

OxiGDAL 0.1.3 Released — Pure Rust GDAL Replacement for Cloud-Native Geospatial Workflows

Production-grade pure Rust geospatial data abstraction library. 11 format drivers (GeoTIFF/COG, GeoParquet, Zarr, NetCDF, etc.), 211+ EPSG definitions, cloud-native async I/O (S3/GCS/Azure), GPU acceleration (wgpu), WASM + Python bindings. ~480k SLoC, 69 crates, 7,486 passing tests. 10× faster than GeoPandas, <50 MB Docker, no C deps. The sovereign geospatial layer for SciRS2 and the entire COOLJAPAN ecosystem.

releaseoxigdalgdal
Mar 17, 2026 · 3 min

OxiMedia 0.1.2 Released — Pure Rust FFmpeg + OpenCV Replacement for Sovereign Media and Computer Vision

Patent-free, memory-safe multimedia and computer-vision framework in pure Rust. Full reconstruction of FFmpeg (codecs, containers, streaming) + OpenCV (detection, tracking, enhancement). 2M+ SLoC, 107 crates, GPU (wgpu), WASM, async pipelines, royalty-free codecs only. 10–50× faster than Python+FFmpeg/OpenCV, single static binary, no C deps. The sovereign media layer for SciRS2 and the entire COOLJAPAN ecosystem.

releaseoximediaffmpeg
Mar 17, 2026 · 5 min

SciRS2 0.3.2 Released — pyo3 0.28.2 + Free-Threaded Python, Zero Deprecation Warnings

SciRS2 is a pure-Rust SciPy/NumPy/scikit-learn replacement — 2.59M SLoC, 19,700+ tests, 29 crates, no C or Fortran. The 0.3.2 patch upgrades the Python bindings to pyo3 0.28.2 (Python::attach) for free-threaded CPython 3.13, plus benchmark modernization with std::hint::black_box.

releasescirs2scientific-computing
Mar 17, 2026 · 3 min

SciRS2 0.3.3 Released — Pure Rust SciPy Replacement for Scientific Computing and AI

2.59 million lines of pure Rust. SciPy-compatible APIs, 10-100× faster with SIMD, no C/Fortran deps, 29 crates, 19,700+ tests, Python + WASM + no_std. The sovereign scientific computing and AI foundation for the entire COOLJAPAN ecosystem.

releasescirs2scientific-computing
Mar 16, 2026 · 3 min

OxiArc 0.2.4 Released — Pure Rust Archive and Compression That Outperforms zlib and libarchive

10 archive formats and 8 compression algorithms implemented from scratch in pure Rust. DEFLATE up to 400 MB/s, SIMD-accelerated CRC (3–4.5× faster), full async support, LZH (Japanese legacy) support, ZIP/TAR/GZIP/Zstd/LZ4/XZ and more. The sovereign data packaging layer for SciRS2 and the entire COOLJAPAN ecosystem.

releaseoxiarcarchive
Mar 16, 2026 · 3 min

OxiBLAS 0.2.1 Released — Pure Rust BLAS/LAPACK That Outperforms OpenBLAS

Production-grade BLAS and LAPACK entirely in Rust. Up to 172% of OpenBLAS performance on Apple M3, full sparse solvers, f128 precision, RuntimeAutoTuner, no_std support. The sovereign mathematical foundation for SciRS2 and the entire COOLJAPAN scientific computing stack.

releaseoxiblasblas
Mar 16, 2026 · 6 min

OxiCode 0.2.0 Released — Zero-Copy Decode, Size Pre-Computation, and a Much Bigger API

OxiCode's first 0.2 minor: a major API expansion with a BorrowDecode derive for zero-copy decoding, the SizeWriter / encoded_size pre-allocation API, encode_to_file / decode_from_file, lazy DecodeIter streaming, CRC32 checksums, versioned-value helpers, and a rich set of derive attributes — all while keeping 100% bincode 2.0 binary compatibility. 19,929 passing tests, zero warnings.

releaseoxicodebincode
Mar 16, 2026 · 3 min

OxiCode 0.2.1 Released — Modern Pure Rust Binary Serialization, Successor to bincode

100% binary-compatible drop-in replacement for bincode with zero-copy decoding, SIMD-accelerated arrays (2–4× faster), built-in LZ4/Zstd compression (powered by OxiARC), CRC32 checksums, async streaming, schema evolution, and no_std support. 513k LOC of pure Rust, 19,927 passing tests. The sovereign serialization layer for SciRS2 and the entire COOLJAPAN ecosystem.

releaseoxicodebincode
Mar 16, 2026 · 6 min

OxiRS 0.2.2 Released — Zero-Panic Production Audit and a Workspace-Wide Cleanup

OxiRS 0.2.2 is a hardening release: a production unwrap() audit confirming zero panic paths outside tests, a workspace-policy migration across all 27 crates, an oversized module split via splitrs, two security advisories reviewed, and dependency refreshes — 40,786 tests passing.

releaseoxirsrust
Mar 16, 2026 · 7 min

rs3gw 0.2.0 Released — Streaming PUT Backpressure, Graceful Shutdown, and the New rs3ctl CLI

rs3gw is a Pure Rust S3-compatible object-storage gateway. 0.2.0 brings streaming PUT with backpressure and incremental hashing, graceful shutdown with multipart GC, SigV4 rate limiting, gRPC range GET / parallel delete, and the new rs3ctl admin CLI.

releasers3gws3
Mar 14, 2026 · 3 min

OxiHuman 0.1.1 Released — Pure Rust Client-Side Parametric Human Body Generator

Privacy-first 3D human mesh synthesis in pure Rust. Runs entirely client-side (WASM + WebGPU or native). Parametric morphing, FACS expressions, biomechanics physics, 10+ export formats (glTF, VRM, USD, 3MF). 943,000+ LOC, 32,644 passing tests. No server ever sees your body data. The sovereign human modeling layer for SciRS2 and the entire COOLJAPAN ecosystem.

releaseoxihuman3d-human
Mar 13, 2026 · 3 min

Spintronics 0.3.0 Released — Pure Rust Simulator for Spin Dynamics and Topological Materials

Production-ready pure Rust library for spintronics simulations. LLG/LLB solvers, skyrmions, ISHE/SSE, spin pumping, altermagnets, hopfions and more. 52–100× faster than Python/NumPy, SIMD + memory pool allocator (99% reduction), Python bindings (PyO3), WASM support, HDF5/JSON/VTK export. Validated against Saitoh Group experiments. The sovereign spintronics layer for SciRS2.

releasespintronicsscirs2
Mar 11, 2026 · 5 min

OxiArc 0.2.3 Released — Async ZIP and DEFLATE Streaming Arrive, Plus a Dedicated GIF LZW Codec

OxiArc 0.2.3 brings non-blocking I/O to the compression layer: async ZIP, async DEFLATE, and a new GZip module for Tokio/async-std pipelines, alongside a dedicated GIF LZW codec with LSB bitstream support. Plus across-the-board codec refinements. Pure Rust archive and compression — no C, no zlib, no libarchive.

releaseoxiarccompression
Mar 11, 2026 · 2 min

Today: Three Major Releases — OxiHuman 0.1.0, OxiGDAL 0.1.1 & OxiRS 0.2.1

Pure Rust sovereignty just leveled up again. Privacy-first human bodies, full GDAL replacement, and production Semantic Web + AI reasoning — all dropped today.

releaseoxihumanoxigdal
Mar 10, 2026 · 7 min

OxiArc 0.2.2 Released — A From-Scratch Zstandard Encoder Lands, and OxiArc Can Finally WRITE Zstd

OxiArc 0.2.2 ships a complete Zstandard encoder built from scratch — FSE, canonical Huffman, and an LZ77 match finder with 22 levels — so the workspace now writes real .zst, not just reads it. Plus an n-gram Zstd dictionary trainer, LZ4 dictionary frames, and richer ZIP64 with AES-256 and ZipCrypto. Pure Rust archive and compression, no C, no zlib, no libzstd.

releaseoxiarccompression
Mar 10, 2026 · 2 min

OxiGrid 0.1.0 Released — Pure Rust Electrical Power Systems Simulation & Optimisation

Production-grade AC/DC power flow, transient & small-signal stability, battery modelling, renewable integration, optimal power flow, harmonic analysis, and protection systems — all in pure Rust. No C, no Fortran.

releaseoxigridpower-systems
Mar 10, 2026 · 7 min

OxiMedia 0.1.1 Released — FFmpeg CLI Compatibility and an OpenCV cv2 API in Pure Rust

OxiMedia 0.1.1 is a pure-Rust FFmpeg + OpenCV replacement. This release adds a drop-in FFmpeg CLI compatibility layer (oximedia-ff), an OpenCV cv2 Python API, a complete MP4 demuxer and end-to-end transcode pipeline, a plugin system, and FFV1/JPEG-XL/DNG/Y4M support — 97 crates and ~1.49M SLoC of pure Rust.

releaseoximediaffmpeg
Mar 10, 2026 · 8 min

PandRS 0.2.0 Released — Production-Ready Enterprise DataFrames with ReBAC, Zero-Vuln Defaults, and SciRS2 Integration

A major milestone for the pure Rust DataFrame library — PandRS 0.2.0 delivers all planned v1.0.0 features. Google Zanzibar-style ReBAC authorization, 6,984 unwrap() calls eliminated, a zero-vulnerability default build, optional SQL backends, new SciRS2 0.3.1 stats/linalg integration, 300+ pages of docs, and 24-month LTS. 3-9x faster than pandas with up to 89% less memory.

releasepandrsdataframe