[burgerrito]

They are using a yaml file with .base extension for this.

https://help.obsidian.md/bases/syntax

[Brajeshwar]

I like the things that come out of Obsidian. I can walk out easily if need be and won't be worried that I'm stuck to a proprietary format. I believe their `.canvas` format is also just JSON.

[cweagans]

It is! And they separated the spec for it out into a separate thing: https://jsoncanvas.org/