Open Source

Products

A vertical stack of Rust libraries — from hardware-level JSON parsing to a full web framework — each layer tuned for zero-cost abstractions and real-world developer ergonomics.

crates.io/users/kowito

Chopin

Active

High-speed modular web framework for Rust

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A full-stack Rust web framework built around zero-cost abstractions. Chopin provides a composable module system covering HTTP routing, authentication, database access, and developer tooling — designed to be assembled only what your project needs.

chopin-core

High-performance HTTP engine, router, and middleware pipeline.

chopin-auth

Fine-grained RBAC, session management, and JWT integration.

chopin-orm

Lightweight, type-safe async database abstraction layer.

chopin-cli

Project scaffolding and developer productivity tooling.

kowito-json

Maintained

SIMD-accelerated JSON parsing for data-heavy workloads

crates.io/users/kowito

A specialized JSON parsing suite that leverages SIMD and ARM NEON instructions for hardware-level throughput. Focuses on zero-decode parsing and JIT-bound schemas to maximize serialization speed in high-volume data pipelines.

SIMD / ARM NEON

Vectorised parsing paths for x86_64 and AArch64 targets.

Zero-decode API

Parse directly into typed structs with no intermediate allocations.

chopin-pg

Beta

io_uring async PostgreSQL driver

A high-concurrency PostgreSQL driver built on the Monoio io_uring runtime. Eliminates blocking I/O overhead in the database-to-application pipeline by exploiting modern Linux kernel async I/O primitives for near-zero-cost data access.

io_uring back-end

Non-blocking I/O via Linux io_uring for minimal syscall overhead.

Monoio runtime

Tight integration with the Monoio single-threaded async executor.