The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

Application of macOS which switches Alphabet / Kana by pressing left and right command key alone. Other key remapping is also possible.

Save or export your private and public Slack messages, threads, files, and users locally without admin privileges.

Flog reports the most tortured code in an easy to read pain report. The higher the score, the more pain the code is in.

Super simple group chat, without a subscription

Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors

A powerful coding agent toolkit providing semantic retrieval and editing capabilities (MCP server & other integrations)

Real-time Claude Code usage monitor with predictions and warnings

A demo application for simplifying models with database views

A modern Ruby framework designed for non-blocking I/O and simpler infrastructure

Anonymize your database before dumping

High-performance proxy for MySQL and PostgreSQL

Application with CQRS and Event Sourcing built on Rails and Rails Event Store

Autonomous coding agent right in your IDE, capable of creating/editing files, executing commands, using the browser, and more with your permission every step of the way.

Read only ActiveRecord-like interface to query static YAML files

Automatically generates beautiful and easy-to-read ER diagrams from your database.

An incremental parsing system for programming tools

Ruby Next makes modern Ruby code run in older versions and alternative implementations

On a mission to index all Ruby events.

A Git-compatible VCS that is both simple and powerful

Transcribe on your own!

Learn System Design concepts and prepare for interviews using free resources.

gsheet is a CLI tool (and Golang package) for piping csv data to and from Google Sheets

Coroot is an open-source observability and APM tool with AI-powered Root Cause Analysis. It combines metrics, logs, traces, continuous profiling, and SLO-based alerting with predefined dashboards a…

Curated coding interview preparation materials for busy software engineers

Command line tool for generating anonymized database for PostgreSQL (WIP)

A modern load testing tool, using Go and JavaScript

A curated list of awesome Go frameworks, libraries and software