You can use whatever frontend framework you want, and just embed the html/css/js/asset files inside the binary with go:embed. In case of dynamic set of files, you can also write a Go utility to generate the embeddings with go:generate.

In addition to the ease of distribution (no more assets/ directory - just a single binary executable!), it also increases speed of the application, as it no longer has to perform file system reads in order to serve a webpage.