The Framework TeamAt the bottom of the pyramid of card makers is the frameworkpeople who write the software. At the moment, this is largely the Cardstack team who is building the Card SDK.
The Card SDK controls what a card can and cannot do. It is a front-end back-end framework that runs on the Cardstack Hub, a decentralized application server. The same card can run on many hubs servers and be hosted on different deviceswhether that's on a PC or in a cloud.
The framework team builds the templating UI, tool kits, and server runtime. The Team wants to tap into existing open-source tools as much as possible, so as to enable people who know these tools to be productive right away. Therefore, being a part of the Cardstack framework team means learning the Team's version of tools like Ember Core, NodeJS, Postgres, and Docker.
Learn more:
https://www.youtube.com/watch?v=zrGLmAYYpqQ&t=387s