A tool for creating and running Linux containers using lightweight virtual machines on a Mac. It is written in Swift, and optimized for Apple silicon.

Database anonymization and test data management

Unofficial Home Assistant custom integration for AprilAire Healthy Air cloud-connected dehumidifiers.

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.

Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

The speed of fixtures with the syntactic sugar of factories.

A PDF generator for Rails using Ferrum & headless Chrome

Read Eval Print Loop for GDScript

Catch unsafe migrations in development

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

wkhtmltopdf binary for heroku / amd64

JavaScript animation engine

A modern replacement for Redis and Memcached

One delightful Ruby framework for every major AI provider. Build AI agents, chatbots, RAG apps, and multimodal workflows in beautiful, expressive code.

Rack::Timeout enhancements for Rails

DSL Framework consisting of a DSL Engine and a Data-Binding Library used in Glimmer DSL for SWT (JRuby Desktop Development GUI Framework), Glimmer DSL for Opal (Pure Ruby Web GUI), Glimmer DSL for …

Datadog monitors/dashboards/slos as code, avoid chaotic management via UI

Declarative pure-SQL schema management for MySQL and MariaDB

GoReplay is an open-source tool for capturing and replaying live HTTP traffic into a test environment in order to continuously test your system with real data. It can be used to increase confidence…

A tracer for Active Record queries

Vitess is a database clustering system for horizontal scaling of MySQL. This fork does not contain interesting changes - it's mostly the placeholder for PRs that PlanetScale maintainers cooperate on

Backstage is an open framework for building developer portals

🤖 Chat with your SQL database 📊. Accurate Text-to-SQL Generation via LLMs using Agentic Retrieval 🔄.

Submit stacked diffs to GitHub on the command line

Stress-test your database with pre-defined queries

A Ruby test framework for people who don't have time for slow tests 💣💥

The missing high-efficiency query API for ActiveRecord

Active Record adapter for the Trilogy database client for Rails v6.0 - v7.0.

Trilogy is a client library for MySQL-compatible database servers, designed for performance, flexibility, and ease of embedding.

the only cheat sheet you need