I am having a very hard time googling for this. It’s a gem you add to your rails application, and it allows you to then request Node modules as if they were gems, and get them added to the asset pipeline. It’s a combination of a gem and a packaging service that wraps (maybe auto-wraps) the official NPM modules as gems, and makes them discoverable and installable without a lot of process or drama.
Can anyone remind me of the name of this gem/service?
Nope, neither of those. I recall that you would just be able to add lines to the Gemfile for each npm package, and they would be auto-loaded into the application.js.
These problems are largely solved by webpacker now in Rails. Just add npm packages to your package.json (just as easy as adding to a Gemfile) and it works great with the asset pipeline.