Actually, Mantra is mostly a frontend architecture. I didn’t mention I want add Blaze and other support to Mantra in some day.
My idea is others will build stuff like Mantra based with the principles used in other frameworks.
For an example, Angular has a different way to doing things. React has it’s own, Blaze has it’s own and so on.
Sorry, I can’t say much about Aurelia since I didn’t use it much.
I think these days, every UI framework is performs much better than React :)
Talking about GraphQL yes. It’ll support any framework. That’s the whole goal behind our project Lokka.