--- a/OpenRA.Web/wwwroot/main.js
+++ b/OpenRA.Web/wwwroot/main.js
@@ -386,6 +386,10 @@
 		`Game.WebSocketProxy=${proxy}`,
 	];
 
+	// Batollo hosting, 2026-11-08: join this site's shared lobby.
+	if (PlayRA.build.connect)
+		args.push(`Launch.Connect=${PlayRA.build.connect}`);
+
 	// Extra engine arguments for testing, e.g. ?arg=Graphics.CapFramerate=True&arg=...
 	for (const extra of debugParams('arg'))
 		args.push(extra);
@@ -873,6 +877,8 @@
 	const storePromise = Store.open(storageName);
 	if (splash) {
 		PlayRA.splash = {};
+		// Batollo hosting: enable actions only once their handlers can be installed.
+		for (const button of splash.querySelectorAll('button')) button.disabled = false;
 		const choice = await showSplash(splash, { build, at, storePromise, contentManifest, state: PlayRA.splash });
 		PlayRA.splash.fullscreen = choice.fullscreen;
 		setPhase('loading', 'Starting');