Ruby

forem/forem

The Rails platform behind dev.to, open for anyone to run — Forem is the open-source Rails codebase that powers dev.to, letting anyone self-host a discussion and publishing community for peers, customers or fanbases. It's built for teams wanting a full-featured forum/blog platform with active commit history and Gitpod-based dev setup, not just a plugin or theme.

For empowering community 🌱

Homebrew/homebrew-core

The Formula Repository Behind Every `brew install` — This repo holds the Ruby formula definitions that `brew install` pulls from by default, covering open-source packages built from source. It's less a standalone tool and more the living catalog that keeps Homebrew's package set current through community-submitted formula updates.

🍻 Default and OSS formulae (built-from-source packages) for the package manager for everywhere

lobsters/lobsters

The Open-Source Rails Codebase Behind the Lobsters Link Aggregator — This is the actual Ruby on Rails source running lobste.rs, open-sourced for transparency and used to power several sister sites. Notable for its deliberately minimal-dependency philosophy, built on Rails since 2012 and still maintained by volunteers for decades of expected uptime. Worth a look for anyone studying long-lived, low-dependency Rails apps or running their own niche community forum.

Computing-focused community centered around link aggregation and discussion

xiao1203/huckme-rails

A Deliberately Vulnerable Rails Shop to Benchmark AI Pentest Tools — HuckMe Shop is a fake e-commerce Rails app seeded with 13 intentional OWASP Top 10 flaws (SQLi, IDOR, mass assignment, stored XSS, SSRF, and more), built to test how well AI pentest agents like Strix and Cairn detect and exploit real-world-style bugs. It runs locally via Docker Compose, binds only to localhost, and ships a VULNERABILITIES.md checklist for scoring detection rates.