Spree
参考：
Spree Commerce – Open source Ecommerce framework [Official]
ドキュメント
参考：
Spree Documentation [Official]
日本語訳 SECURITY – DEVELOPER GUIDE | SPREE COMMERCE – Qiita
Spree Auth (spree_auth_devise)
参考：
spree/spree_auth_devise: Provides authentication for Spree by using Devise – GitHub
Storyblok
参考：
storyblok/storyblok-ruby: Storyblok ruby client for easy access of the content delivery api – GitHub
How to add a headless CMS to Spree Commerce | Storyblok
Spree is Dead
参考：
Spree is Dead | Commerce Hack (degica.com)
Solidus
参考：