I haven't used this project yet but as a concept it is very interesting. I'm thinking that it could be used in frameworks like Nuxt which handle both server and client-side rendering.

From the documentation it appears that when using Phero it will always make a HTTP request to the server so my suggestion is to also generate a server-side client that could be used to call the API functions directly. That way, in frameworks like Nuxt, if the page is loaded on the server side, a server-to-server HTTP request could be avoided and instead the API function would be called directly.