Elli for http1 and chatterbox for http2.
See the tiles example here.
$ rebar3 compile
$ rebar3 shell
1> application:ensure_all_started(elli_chatterbox).
{ok,[elli,syntax_tools,compiler,goldrush,lager,hpack,
chatterbox,elli_chatterbox]}
2> elli_chatterbox:start_link([]).
Open https://localhost:8080/.