static_server.go

    package main

    import (
        "embed"
        "fmt"
        "log"
        "net/http"
    )

    //go:embed assets/*
    var assets embed.FS

    func main() {
        http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
            path := r.URL.Path
            if path == "/" {
                path = "/index.html"
            }

            data, err := assets.ReadFile(path)
            if err != nil {
                w.WriteHeader(http.StatusNotFound)
                fmt.Fprintf(w, "File not found: %s", path)
                return
            }

            w.WriteHeader(http.StatusOK)
            w.Write(data)
        })

        log.Fatal(http.ListenAndServe(":8080", nil))
    }