Pretty cool

Sojourn tracks site visitors and sources, with the ability to recognise multiple sources per visitor. Each time a new source is detected, sojourn tracks the referer, utm data, and logged-in user (if any)

Adds a helper method to rails views that creates an image_tag that falls back from svg when the user is using a non-modern browser.

JavaScript error notifications for Rails.

This plugin adds some partials to deal with DataWedge WebSocket.

rails 5 application monitoring tool to check for System Information, CPU Usage and Memory Usage of server/machine.