error_track

https://github.com/adityapandit17/error_track

A mountable Rails engine that captures unhandled and manually-reported exceptions, groups them like Sentry/Honeybadger, stores them in your app's own database, and gives you a dependency-free dashboard at /errors (vanilla JS, no Hotwire/React/build step required). Works in full-stack Rails apps and API-only apps alike.