We lost "auto-update" of the bootstrap script - this was done by redirecting to the github repository (albeit using a separate branch)
One possible solution would be to use cloudflare to "front" rock-robotics.org and then use CloudFlare's page rewrite. I'm using this in my company, it works great.
The one thing you need is to get the right to use cloudflare as the DNS for rock-robotics.org.