package mainimport (	"fmt"	"log"	"net/http"	"sync")const port = "4180"const msg = `hii,I want to run this ysws called Teapot (#teapot)[ name comes from HTTP/1.1 418 I'm a teapot; see the headers! ]Basically:- YS: ANYTHING that speaks HTTP: an api, a graphql server, api clients, reverse proxy, load balancer, tunnels- WS: Stickers, Domain Grants, AI Grants, Raspberry Pis, .... TEA! .... and more...- projects must implement HTTP meaningfully and contain 418 I'm a teapot somewhere.If you like it, consider joining #teapot <3 thanks!    -- @riiitam`type counter struct {	mu    sync.Mutex	count int}func (c *counter) Inc() int {	c.mu.Lock()	defer c.mu.Unlock()	c.count++	return c.count}func main() {	c := counter{count: 0}	mux := http.NewServeMux()	mux.HandleFunc("GET /", func(w http.ResponseWriter, r *http.Request) {		fmt.Printf("teapot'd: %d times\n", c.Inc())		w.Header().Add("Content-Type", "text/plain; charset=utf-8")		w.WriteHeader(http.StatusTeapot)		fmt.Fprintf(w, msg)	})	fmt.Printf("Listening on port %s!\n", port)	log.Fatal(http.ListenAndServe(":"+port, mux))}