Implemented chunk re-tesselation, performance is quite good. FPS about double that of vanilla Minecraft on my machine. Here's a short video walking around my test server near sunset for your enjoyment.
I removed the ability to run betamine without connecting to a server, so all future screenshots/videos will be of betamine connected to a vanilla Minecraft server (until I implement a server myself).
I think #harelang is pretty good for game development 😃