Is there some method that will trigger as soon as the server starts up?
Currently I have a hack in http/server.d that gets calls a given delegate right before starting up (usage below):

static this() {
    auto settings = new HttpServerSettings;
    settings.port = 23432;
    auto router = new UrlRouter;
    router.get("/", &handleRequest);
    router.get("*", serveStaticFiles("./public/"));
    settings.onStart = () => send(mainTid, SignalVibeReady(true));
    listenHttp(settings, router);
}