Adding Chartkick to a Rails 6 App - Things I Always Forget

Chartkick is the charting engine that I've used for a bunch of years. When you use Chartkick on a Rails 6 app, here are some gotchas:

Gemfile

gem 'chartkick'

Command Line

bundle install
yarn add chartkick chart.js
yarn install --check-files

Add to application.js

require("chartkick")
require("chart.js")