Sharing Homestead with the world

I'm looking for a way to share my local project with someone. Homestead offers sharing via ngrok with command:

share my-directory-name --region=eu

It works fine, but the limits are rather strict, with just 40 connections per minute. It's not enough for my project using real-time communication. I need more than 100 connections per minute.

Is there another free alternative? I found Serveo, but I'm not sure how to use it with Homestead.

I appreciate any advice.