Session is over.
Introducing ReActionView: A new ActionView-Compatible ERB Engine
This talk is the conclusion of a journey I’ve been sharing throughout 2025. At RubyKaigi, I introduced Herb: a new HTML-aware ERB parser and tooling ecosystem. At RailsConf, I released developer tools built on Herb, including a formatter, linter, and language server, alongside a vision for modernizing and improving the Rails view layer.
Now, I’ll continue with ReActionView: a new ERB engine built on Herb, fully compatible with .html.erb but with HTML validation, better error feedback, reactive updates, and built-in tooling.
Now, I’ll continue with ReActionView: a new ERB engine built on Herb, fully compatible with .html.erb but with HTML validation, better error feedback, reactive updates, and built-in tooling.
Sep 18 - 11:00 to 11:30
Main Stage
About the speaker
Marco Roth
Full-Stack Ruby on Rails Developer
Marco is a passionate full-stack Ruby on Rails developer and a dedicated open-source contributor. As a member of the Hotwire and StimulusReflex contributors teams he has been pushing the limits of real-time server-rendered applications using the HTML-over-the-wire (Hotwire) approach. He has actively open-sourced, maintained, and contributed to several key libraries within the Hotwire and Ruby on Rails ecosystem.