That sounds really similar to Netlify CMS, especially the use of Git for content storage+version history and the focus on a decoupled UI for editing content. It's really cool to hear from somebody exploring the same space! Git as a backend for content is a really interesting concept that's worked very well for us so far, and I'd be interested to hear how you're implementing that and what issues you've run into. The internationalization approach you describe on the features page is pretty intriguing as well - that's a feature that we should improve our support for in Netlify CMS.
Feel free to ping me using the contact info in my profile or at @benaiah in our Gitter room (https://gitter.im/netlify/NetlifyCMS) if you're interested in discussing this elsewhere.
Feel free to ping me using the contact info in my profile or at @benaiah in our Gitter room (https://gitter.im/netlify/NetlifyCMS) if you're interested in discussing this elsewhere.