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XeroDay

@XeroDay

Joined August 7th, 2026

  • 10Devlogs
  • 4Projects
  • 1Ships
  • 19Votes
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1h 29m 56s logged

Devlog - 4 - Shipment!

Shipping 32 CPU in Roblox now!! :yay:

So I was working on the RootFS for a while, I was trying to make it better and more faster, I was also working on adding more syscalls so it can support many more custom compiled codes. :tired_face-hole:

Now I am finally. Done! :headpats:
I have successfully built a mini riscv cpu that you can actually use to run riscv instructions :3
Make sure to vote it if you get it !!! heheheh You can check it out!

https://www.roblox.com/games/114068662906612/Real-Linux-Emulator

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6h 30m 28s logged

Devlog - 3

Finally, after HOURS. :tired:
Now Roblox can run your C code. :thumbs-up:

So I finally added custom program support!! :sunglass:
Now you can write a code in C, Compile it and it will be saved in the /bin as executable. :happi:

I wrote a custom FastFetch in C, compiled it on my machine for RISCV32 using qemu, and put the binary in roblox and I ran the fastfetch, and it worked!

So now you can literally run your C code inside roblox 😭

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1h 42m 58s logged

Devlog 2:

I finally built a file system inside roblox!! :yay:
Now you can save your class notes inside roblox as a cloud storage :joy-dance:
This took quite a bit of time, but I added syscall support for Read !

Stay tuned to see a working linux inside roblox ! :fish-eyes:

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1h 53m 22s logged

32-Bit CPU In Roblox

So as you can read the title, I am making an 32-Bit CPU Inside roblox :tired:

I’m building a RISC-V 32-bit CPU. The core is done enough to run real programs now.

It implements the RV32IM instruction set, so the full base integer ISA plus the M extension for multiply and divide. Syscalls follow the Linux RISC-V ABI, so programs can do proper I/O instead of just computing in silence.

Everything runs in an IDE I built, with a parser that handles the usual sections and pseudo instructions, and it already boots a small kernel that prints a banner and takes commands.

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1h 1m 33s logged

Devlog #2 - HackerOS

I’ve Done it!! I’ve built a Virtual File System in my Web OS - Hacker OS!!:yay-67:

Now you can save and delete files and it will be persistent!!

It was pretty messy at the start :cryign: but I did it! :thumbs-up:

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XUtil is a Minecraft utility mod for version 26.2, written in Java on the Fabric loader.

It adds small quality of life features that the base game is missing, all behind a clickable in game GUI!!

THE ULTIMATE MINECRAFT AUTOMATION MOD - FOR THE PROS!

A ClickGUI opened with the DEL (configurable from keybinds settings) key. Draggable windows, a search bar, and every module gets its own keybind you set from the menu.

A macro system. You chain tasks like attack, use, wait, walk, jump and loops, and gate them behind conditions like “health below 20” or “hunger below full”. Macros run on a key, on a toggle, or every tick. I use it for an auto eat macro that eats whenever the hunger bar drops (quite useful hehe).

A recorder that captures movement, look, hotbar, held keys and module toggles, saves them as a small JSON file, and plays them back. It resets to the start position every loop and can be dropped into a macro as a replay task.

Plus a world info HUD, auto tool, sprint, fullbright, zoom, break indicator and target highlight.

The game also has API for addons, so you don’t have to edit the source, but you can make a separate mod, add this mod as requirement, and you can add custom modules/macros !!

Future Updates: I am working on Biomes Locator, I am still researching on it, the Minecraft Biomes are based on World Climates, so we can basically track down the estimated biome location without the world seed if we can locate the climate change parameter!!! (There’s no mod for this currently, so if I make this happen, it might be world changing xD).
Though, perlin noise is pretty random for climate parameters, but I am sure I can estimate based on nearby biomes and eventually come up with a proper method!! Stay Tuned ! </3

Everything is configurable from the in game GUI or the JSON files in the config folder. Repo: https://github.com/X3r0Day/XUtil

  • 4 devlogs
  • 25h
Try project → See source code →
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18m 23s logged

#XUtil Demo!! :yay: :parrotcop:

XUtil is a Minecraft utility mod for version 26.2, written in Java on the Fabric loader.

It adds small quality of life features that the base game is missing, all behind a clickable in game GUI

There’s a Macro system to automate Tasks like a Pro :sunglass:

You can also record your own actions and then either replay it, or add it in your macro (yes you can actually add replay inside macro too!! :0)

The mod is very easy to customize, you can create your own Addons too!! What’s even cooler than that?

It have it’s own API handler that can handle multiple addons so you don’t need to edit the source code just make a new mod and use this mod as it’s requirement :wink2:

Repo: https://github.com/X3r0Day/XUtil

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33m 1s logged

XUtil is Done! :yay:

XUtil is an Minecraft Fabric 26.2 mod that provides you the best automation capability for single & multiplayer servers! :funny-dance:

With this, you can easily dominate repeated tasks, create custom macros, create custom recordings which you can then replay
There’s also Quality of Life features like AutoTools, Break Indicators, and more! :life:

I still have to do few optimizations
But it supports Addons!! :deadpool_gasp_awe_shock:

You can create your own Addons easily and add custom categories and modules !!

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5h 30m 52s logged

Recording Module - Minecraft

:dance:
Finally, I am done with adding a recording module, that records all the user action and then repeat them, making it very useful for the automation! :yay:

It records everything you do in game. Movement, the way you look around, which hotbar slot you had out, when you held jump or attack. Then it plays it back exactly. Bind a record key, press it to start, press it again to stop.

The recording saves automatically and shows up in the Recorder menu, ready to play with a second key. There’s a loop toggle, and every recording has its own mouse lock so your input won’t affect the play !! :sunshine-pastel:

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19h 5m 23s logged

XUtil #1

Hi guys! :yay: I have been working on XUtil since very long now without a devlog, so I decided to why not make a devlog

The whole reason XUtil exists is macros. I wanted to build a macro engine for Minecraft 26.2 that could chain actions together, react to conditions, and run while I do something else. The first macro I actually finished is the one in the video above: hold any food, drain your hunger, and it eats automatically the moment the bar drops, then stops when you’re full.

Enjoy the background song :p:

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