Show HN: Pumpkin – A Modern Minecraft server written in Rust

The performance differences look pretty impressive from the benchmarks. I do notice that world generation and saving features are missing though, and these tend to be pretty expensive operations. Chunk gen especially can bring a weaker VPS to its knees. I'm sure the benchmarks were taken at an idle state, but I'd be curious to see how it compares once those features are included and being used.

I don't see it listed, but is there support for block breaking/placing yet? Presumably this would require light recalculation and a chunk update on the server.

Finally, do you plan to add advanced features like scoreboard, teams, or command block parsing in general? Mojang has at least open-sourced Brigadier for that.

Cool project. Hope to see it mature to the point of making servers easier to run on low-end hardware.

Chunk gen makes sense to implement last or never. If you want a performant Minecraft server you need to pregen all the chunks anyway. You can still later regen chunks that have never been visited to get new chunkgen on updates since chunks store the inhabited time.

I think Minecraft server re-implementations are pretty neat and I like to see when a new one comes out. There are also specific purpose server impls like MCHPRS for doing fast redstone compilation for technical minecraft.

I think a high performance block-for-block compatible chunk generation program would be great for anarchy Minecraft servers or generally servers with an "infinite" minecraft world where pre-generating all chunks is not possible.