High-performance, zero-loop quantitative backtesting engines built in Kona. Features O(N) prefix-sum architecture for ultra-low latency grid searches.

linear concat language

Constraint Programming and Modeling library in Python, based on numpy, with direct solver access.

A very fast and portable Game Boy (DMG) emulator single header library written in C99.

A faster youtube embed.

Debug and fix your gameboy emulator

The automation tower defense RTS

J playground

A Go implementation of SCTP

Helpers for Arrow C Data & Arrow C Stream interfaces

The free AI already on your Mac. CLI tool, OpenAI-compatible server, and interactive chat — all on-device via Apple Intelligence. No API keys, no cloud, no downloads.

arcfide's line editor

SPREAD

A Languages visualization experiment

Compare languages

Specification for interoperability of common algebraic structures in JavaScript

recursive aggregating treetable and 3-d pivot table for hypergrid

SPITBOL x64 provides raw power and speed for non-numeric computation on the x86_64 architecture

KDB bindings for lua

SIMD-accelerated columnar database for analytics — pure C, zero dependencies

PostgreSQL in-database durable execution

Go package implementing bitsets

Fluentd: Unified Logging Layer (project under CNCF)

The most minimal cross-platform GUI library

Techniques and numbers for estimating system's performance from first-principles

BSD-licensed implementation of rsync