This seems pretty cool! As a dev who is, for lack of design resources on my team, frequently asked to pretend to be a designer, this could very much come in handy!
That said, the real value to me would be using this tool to make medium-fidelity mockups that look like my existing site. It looks like maybe your templates would allow me to make mockups in Noya that match my existing colors/etc, but I'd be coupled to ChakraUI. If the pre-existing components from my pre-existing site don't match Chakra's components, it sounds like I'd be out of luck?
At the moment, yes, since our MVP is still pretty limited. We have a first draft of a protocol for integrating any components/theme into Noya that should support the use case you're describing. It still needs some more iteration though before we ship it!
That said, the real value to me would be using this tool to make medium-fidelity mockups that look like my existing site. It looks like maybe your templates would allow me to make mockups in Noya that match my existing colors/etc, but I'd be coupled to ChakraUI. If the pre-existing components from my pre-existing site don't match Chakra's components, it sounds like I'd be out of luck?