Check your YARD docs like RuboCop checks your code - a linter for YARD documentation.

Ruby ↔ Rust Design Patterns: FFI Hybrid and Mirror API patterns for building polyglot gems

A Ruby gem that implements exponential backoff retry patterns with full jitter for distributed systems. Simple, focused, and built for Ruby 3.2+ with fiber-aware operations.

A modern profiler for your Rails application

Containerization is a Swift package for running Linux containers on macOS.

Split a mysqldump into separate files for each table.

Free and Open Source, Distributed, RESTful Search Engine

Virtualize macOS 12 and later on Apple Silicon, VirtualBuddy is a virtual machine GUI for macOS M1, M2, M3, M4

Makes your background jobs interruptible and resumable by design.

Play with pprof on macOS

Process manager for Procfile-based applications and tmux

A Ruby toolkit for building complete and robust CLI commands.

Cista is a simple, high-performance, zero-copy C++ serialization & reflection library.

LLM training in simple, raw C/CUDA

Fast and multi-platform Spotify client with native GUI

The reference for writing fantastic Rails applications

High-Performance server for NATS.io, the cloud and edge native messaging system.

A bootable x86 lisp interpreter, assembler, and simple text editor that lets you run the code you type in so you can bootstrap anything

Rails authentication with email & password.

🌐 The Internet Computer! Free, Open-Source, and Self-Hostable.

All the resources you need to get to Senior Engineer and beyond

Fastest way to build modern websites

A MIT-licensed, deployable starter kit for building and customizing your own version of AI town - a virtual town where AI characters live, chat and socialize.

A fault tolerant, protocol-agnostic RPC system

A simple, zero-dependencies library to parse environment variables into structs

Intermediate Graphics Library (IGL) is a cross-platform library that commands the GPU. It provides a single low-level cross-platform interface on top of various graphics APIs (e.g. OpenGL, Metal an…

Learn how to design systems at scale and prepare for system design interviews

Codespaces but open-source, client-only and unopinionated: Works with any IDE and lets you use any cloud, kubernetes or just localhost docker.