rails_error_dashboard by AnjanJ

MCP-powered, self-hosted embedded error tracking Rails engine. Track errors, get notified via Telegram/Slack/webhooks, and resolve issues with a clean dashboard—all without external services or SaaS fees. Maintained by dlt on GitHub, where it has earned 85 stars from the community.

AppSignal for Ruby gem. Maintained by appsignal on GitHub, where it has earned 206 stars from the community.

Free, privacy-friendly, simple, open-source and self-hostable product analytics. Maintained by shafy on GitHub, where it has earned 216 stars from the community.