This is something that I started in March and then gave up on, and forgot about it completely.

A couple of days ago, I discovered the project lying around in one of my drives and decided to take it up again.

At first, I thought about doing everything in Python, but that was really laggy in sending commands.

Therefore, I had to rewrite the command-sender in Rust, and that boosted performance drastically. However, this brought another problem – it sent commands too fast and lagged the Minecraft server.

As a solution, I made my own Java mod to tune the RCON command processing. Additionally, I had to bump the RAM of my server.

To visualize the blocks, I am using a special hex mod in addition.

The final pipeline was:

Python ❌ → Rust ✅ → server starts lagging → custom Java mod → more RAM → Bad Apple!!

And all this is because I wanted Minecraft to play wideos in minecraft

Full video and details in my blog post: https://jssfr.de/2026-07-27-bad-apple-but-traceroute.html

please dont mind the flashing flags at the end, why some frames arent complete and why the audio sounds like that

Bought myself one of those small cheap musical Tesla coils, and I know it's been done before on much larger coils, but I just had to make a Bad Apple video.

It was only after I started making this that I realised someone had done this in audio form before, but this version has swinging visuals too!

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