COOLJAPAN

COOLJAPAN Blog

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

324 posts

release 323 pure-rust 267 scirs2 84 rust 77 noffi 44 cooljapan 44 wasm 36 machine-learning 36 gpu 32 cuda 32 security 29 scientific-computing 29 simd 26 oxiarc 24 oxicuda 21 numpy 21
Jan 24, 2026 · 7 min

OxiRAG 0.1.0 Released — A Four-Layer Pure Rust RAG Engine with SMT Verification

OxiRAG 0.1.0 is the first release of a Pure Rust Retrieval-Augmented Generation engine: a four-layer pipeline (semantic search, draft verification, SMT logic checking, and knowledge-graph retrieval) that compiles to a single static binary or WASM.

releaseoxiragrag
Jan 23, 2026 · 4 min

QuantRS2 0.1.2 Released — Python Bindings Polished, Symbolic Math Goes Fully Pure Rust

A polish patch for QuantRS2, the pure-Rust quantum computing framework — Python-binding bugfixes, refreshed docs, dependency-compatibility bumps, and the removal of legacy C++ SymEngine tooling now that symbolic math is 100% Rust.

releasequantrs2quantum-computing
Jan 21, 2026 · 7 min

Legalis-RS 0.1.3 Released — 18 Jurisdictions, One Pure Rust Engine

Legalis-RS 0.1.3 doubles jurisdiction coverage from 8 to 18 — adding the UAE, Australia, Brazil, Canada, China, India, Indonesia, Laos, Thailand, Vietnam and South Africa — across 41 crates, 863,282 lines and 13,083 passing tests.

releaselegalislegal-tech
Jan 21, 2026 · 7 min

OxiRS 0.1.0 Released — A Rust-Native Apache Jena, First Stable Cut

OxiRS 0.1.0 is the first stable release of a Rust-native Semantic Web platform: complete SPARQL 1.1/1.2, a Fuseki-compatible HTTP server, GraphQL over RDF, SHACL validation, and industrial IoT bridges — a JVM-free alternative to Apache Jena + Fuseki.

releaseoxirsrust
Jan 21, 2026 · 7 min

OxiZ 0.1.2 Released — Python Bindings, a Native Math Stack, and SMT-COMP Tooling for the Pure Rust SMT Solver

OxiZ 0.1.2 adds PyO3 Python bindings (oxiz-py), a Pure-Rust BLAS + multi-precision (MPFR-style) math layer, an SMT-COMP benchmark suite, and a vastly expanded CLI (dashboard/server/distributed/TPTP/interpolation). A Pure Rust Z3 replacement with zero C/C++.

releaseoxizsmt-solver
Jan 21, 2026 · 7 min

QuantRS2 0.1.0 Released — Pure Rust Quantum Computing, From State Vectors to Real Hardware

QuantRS2 is a pure-Rust quantum computing framework — type-safe circuits, state-vector/stabilizer/tensor-network simulators, Grover/QFT/VQE/QAOA, and IBM/Azure/AWS/D-Wave hardware integration. This is the first stable release.

releasequantrs2quantum-computing
Jan 21, 2026 · 4 min

QuantRS2 0.1.1 Released — Clean Builds Across Every Feature Flag

The first patch for QuantRS2, the pure-Rust quantum computing framework. Fixes conditional compilation and feature gating for cloud backends (IBM, Azure, AWS) and photonic modules so the modular workspace builds cleanly with any feature set.

releasequantrs2quantum-computing
Jan 19, 2026 · 8 min

AmateRS 0.1.0 Released — Compute on Encrypted Data, Never Reveal the Plaintext

AmateRS is a distributed database with Fully Homomorphic Encryption — run queries and computation directly on encrypted data without ever exposing plaintext to the server. Built in Pure Rust with LSM-tree storage, an FHE compute engine, Raft consensus, and gRPC.

releaseamatersfhe
Jan 19, 2026 · 6 min

IPFRS 0.1.0 Released — A Pure Rust InterPlanetary File System That Understands Your Data

IPFRS — Inter-Planet File RUST System — debuts at 0.1.0: a Pure Rust, content-addressed distributed file system with Sled-backed block storage, DAG-CBOR/IPLD, an HNSW semantic search index, and TensorLogic logic programming. Local-first, ~4,417 lines, 8 crates.

releaseipfrsipfs
Jan 19, 2026 · 7 min

Kaccy 0.1.0 Released — Tokenize Your Expertise on Bitcoin, Where Reputation Equals Currency

Kaccy 0.1.0 is here — a Bitcoin-native Personal Token Platform for professionals. ~206k lines of safe Rust, 3,296 tests, 7 bonding curves, a 0-1000 reputation system, Lightning, PSBT, and threshold crypto. Proof of Output, not speculation.

releasekaccybitcoin
Jan 19, 2026 · 6 min

Kizzasi 0.1.0 Released — A Rust-Native Signal Predictor for the Continuous World

Kizzasi 0.1.0 is the first release of an Autoregressive General-Purpose Signal Predictor (AGSP) in Pure Rust — neuro-symbolic prediction for audio, sensors, robotics, and video that fuses State Space Models (Mamba/RWKV/S4) with TensorLogic constraints.

releasekizzasisignal-prediction
Jan 19, 2026 · 8 min

OxiFY 0.1.0 Released — Type-Safe LLM Workflow Orchestration as Pure Rust DAGs

OxiFY 0.1.0 is a Pure Rust, Dify-class LLM workflow orchestration platform: compose AI applications as type-safe directed acyclic graphs. 13 specialized crates, 15+ node types, in-process vector search, CeleRS-backed distribution, 2520+ tests. No Python, no Node.

releaseoxifyllm
Jan 18, 2026 · 8 min

MielinOS 0.1.0-rc.1 — A Preview of a Microkernel OS for Distributed AI Agents

MielinOS 0.1.0-rc.1 Oligodendrocyte is the first release candidate of a pure-Rust microkernel operating system for distributed AI agents: a Kademlia DHT mesh over QUIC, SWIM-style gossip, live agent migration, WebAssembly sandboxing, and SIMD tensor ops. 155,178 lines of Rust, 3,255 passing tests, zero clippy warnings.

release-candidatemielinrust
Jan 17, 2026 · 6 min

Legalis-RS 0.1.2 Released — SMT Verification Goes Pure Rust with OxiZ

Legalis-RS 0.1.2 replaces the C++ Z3 backend in its legal verifier with OxiZ, the Pure-Rust SMT solver — rigorous proofs with no native toolchain. Plus a zero-warning build across 25 crates and 11,365 passing tests.

releaselegalislegal-tech
Jan 16, 2026 · 6 min

SciRS2 0.1.2 Released — The Last C Dependency Is Gone: Pure Rust FFT via OxiFFT

SciRS2 0.1.2 completes the Pure Rust journey — FFT migrates from FFTW to Pure Rust OxiFFT, plus zero-allocation SIMD ops and functional optimizers (SGD/Adam/RMSprop). 100% Pure Rust by default on OxiBLAS + OxiFFT. No C, no Fortran.

releasescirs2scientific-computing
Jan 15, 2026 · 3 min

OxiFFT 0.1.1 Released — Dependency Refresh and a Spotless Clippy Run

OxiFFT 0.1.1 is a maintenance patch for the Pure Rust FFTW replacement: hashbrown and spin bumped to their latest, the MSRV pin dropped to track current Rust, and 48 clippy warnings eliminated for a zero-warning build at 652 passing tests.

releaseoxifftfft
Jan 12, 2026 · 5 min

OxiArc 0.1.0 Released — Pure Rust Archive and Compression, Built from Scratch

The first real release of OxiArc: pure Rust archive and compression with 9 crates, 8 compression algorithms, and 10 container formats — ZIP, TAR, GZIP, LZH, XZ, 7z, CAB, LZ4, Zstd, Bzip2 — all reimplemented from scratch. No C, no zlib, no libarchive. ~19,600 lines, 371 tests, Rust 1.85+ / Edition 2024.

releaseoxiarcarchive
Jan 12, 2026 · 6 min

OxiFFT 0.1.0 Released — The Pure Rust FFT That Replaces FFTW and RustFFT

OxiFFT 0.1.0 debuts — a 99% Rust port of FFTW3. Complex/real transforms, DCT/DST, multi-dimensional and batch FFTs, runtime-dispatched SIMD, and 20+ features beyond RustFFT (Sparse FFT, STFT, NUFFT, autodiff, GPU, MPI, WASM). The spectral backbone for the SciRS2 numerical stack.

releaseoxifftfft
Jan 12, 2026 · 6 min

OxiZ 0.1.0 Released — A Pure Rust SMT Solver, the First Step Toward Replacing Z3

OxiZ is a Pure Rust Satisfiability Modulo Theories solver reimplementing Z3 — a full CDCL(T) architecture with EUF/LRA/LIA/BV/Arrays/Strings/FP/Datatypes theories, SMT-LIB2 support, and roughly 90% Z3 feature parity, all with zero C/C++. This is its first public release.

releaseoxizsmt-solver
Jan 12, 2026 · 6 min

OxiZ 0.1.1 Released — A Unified `oxiz` Meta-Crate for the Pure Rust SMT Solver

OxiZ 0.1.1 ships a new unified `oxiz` meta-crate with feature-flagged modular usage (solver/nlsat/optimization/spacer/proof/full), plus MBQI and CDCL(T) theory-propagation fixes. A Pure Rust Z3 replacement with zero C/C++.

releaseoxizsmt-solver
Jan 10, 2026 · 5 min

Legalis-RS 0.1.1 Released — UK & Singapore Join, 9,568 Tests Passing

Legalis-RS 0.1.1 adds United Kingdom and Singapore jurisdictions to the Pure Rust legal-DX framework and grows the test suite from 6,100+ to 9,568 across 23 crates, with a near-zero-warning quality pass.

releaselegalislegal-tech
Jan 6, 2026 · 6 min

MeCrab 0.1.0 Released — A Pure Rust MeCab, Japanese Morphological Analysis Without the C Toolchain

MeCrab is a pure Rust morphological analyzer compatible with MeCab IPADIC dictionaries. The 0.1.0 debut brings memory-mapped zero-copy dictionary loading, a SIMD-accelerated Viterbi lattice, runtime word addition, and the KizaMe CLI — Japanese tokenization in a single safe binary.

releasemecrabrust
Jan 5, 2026 · 7 min

Legalis-RS 0.1.0 Released — Pure Rust Legal DX: Statutes as Verifiable Code

Legalis-RS is a Pure Rust framework that turns legal statutes into structured, machine-verifiable code — a Legal DSL parser, formal verifier, population simulator, and multi-jurisdiction support (JP/DE/FR/US). An honest first release.

releaselegalislegal-tech
Jan 4, 2026 · 8 min

rs3gw 0.1.0 Released — A Pure Rust, Drop-in S3-Compatible Object Storage Gateway

rs3gw is a Pure Rust, S3-compatible object storage gateway for AI/ML and HPC. The 0.1.0 debut ships a 100+ operation S3 API, multi-protocol REST/gRPC/GraphQL access, content-addressed deduplication, and a pushdown-capable S3 Select query engine — in a single 50MB static binary.

releasers3gws3