lib/index.js
function middleware (opts) {
  const srv = new Server(opts);
  servers.push(srv);
  return function tinylr (req, res, next) {
    srv.handler(req, res, next);
  };
}
function middleware (opts) {
  const srv = new Server(opts);
  servers.push(srv);
  return function tinylr (req, res, next) {
    srv.handler(req, res, next);
  };
}
A facade to Server#handle