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

Serve com.chrome.devtools.json for Chrome automatic workspace setup

A Ruby gem to transform HTML into PDFs, PNGs or JPEGs using Google Puppeteer/Chromium

Database changes log for Rails

The tool to avoid various issues due to inconsistencies and inefficiencies between a database schema and application models.

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

A gem that helps to detect potential memory bloats

Plan your refactorings properly

Detect non-atomic interactions within DB transactions

Add EXPLAIN ANALYZE to Rails Active Record query objects

Rails PostgreSQL database performance insights. Locks, index usage, buffer cache hit ratios, vacuum stats and more.

Minimal, Rust-inspired, puts debugging helper adding source expression, file and line number info.

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

GoF design patterns in Ruby

Rails security best practices

🔍Help you get reading the huge open souce libraries in Ruby and trace its source locations

A production ready example Rails app that's using Docker and Docker Compose.

If you're new to DDD and not sure where to start, this process will guide you step-by-step

Example of rails app using Query Objects

A Ruby code quality reporter

lol_dba is a small package of rake tasks that scan your application models and displays a list of columns that probably should be indexed. Also, it can generate .sql migration scripts.

⚡ Don't make your Rubies go fast. Make them go fasterer ™. ⚡

Patch-level verification for Bundler

Identify database issues before they hit production.

A Zsh theme

A set of over 5800 free MIT-licensed high-quality SVG icons for you to use in your web projects.