Lewin Kelly Heliodex

simdjson vs fastjson2 ベンチマーク比較

java-json-benchmarkリポジトリを使用して、simdjsonとfastjson2のデシリアライゼーション性能を比較しました。

実験環境

CPU: AMD Ryzen 7840U (8物理コア / 16論理コア) (Zen 4)
JDK: Eclipse Temurin 25
コード: https://github.com/syusui-s/java-json-benchmark/tree/simdjson

Heliodex project update – October 2025

Ah, yeah, this again. Welcome back to my monthly Heliodex project update! This month has still been plenty busy, though it's the first update in a year that I didn't significantly work on Coputer. You'll see where I spent most of my time instead below.

Mercury

The Mercury 3 website is now available at mercs.dev, with documentation at docs.mercs.dev. Its hosting has been moved to my own dedicated server, living alongside the RCCService instance. This is done with PM2, and its configuration file has been added back to the repository. Dedicated gameservers are running on a Windows VM hosted on Azure (burning through my free credits, not paying them anything yet lol).

The implementations of the new RCCService proxy and [gameserver arbiter](https://github.com/tp-link-extender/RCCService/tree/main/Gam

Heliodex project update – September 2025

September doesn't seem to have been eternal this year. However, given how much I'm already seeing about the upcoming Halloween, it almost seems like October will be. Here's another monthly update!

Mercury

Mercury 3 has entered its private beta testing phase, and now has 28 users on site, all creating status & forum posts, places, assets, and spending currency. An RCCService instance is set up on my dedicated server, accessed from the site running on the Windows VPS, so the reverse of the architecture of Mercury 2. This probably won't stay this way for long though, and we're practising site backups in preparation for another server migration.

The RCC is used for avatar and clothing rendering at the moment, with shirt renders recently being fixed to work properly. Since it's running on OpenSUSE it has to run over a compatibility layer. We're using Wine, which did require a lot of configuration especially a

`DELETE FROM users WHERE location = 'IRAN';`

Hi! I am an Iranian Software Engineer, and in this torn paper note, I want to talk about some funny moments I had online related to the fact that I was spawned in this specific region of the world: Iran.

Microsoft deleted my app, ignored my mails

Back when I was a student, I got access to the Microsoft Imagine, and as a result, I got access to the Microsoft Store as a developer. This inspired me write one of my open-source projects called EyesGuard and publish it on Microsoft Store. However, one day, somebody told me that they can no longer find EyesGuard on the store.

Heliodex project update – August 2025

It's that time of the month again. The summer and its holidays are finally over, so here's a quick update on what I've been up to over August (and the first few days of September).

Mercury

Work on Mercury 3 is getting back up to speed, and the site is now hosted again, albeit unreliably, for a basic alpha test. Taskmanager wants a beta testing phase to begin within the next week or 2. A new system for management of assets has been introduced, separating a few different categories of asset:

Builtins: Assets bundled with the client or studio. These are not requested from the site. (animations, humanoid scripts, studio plugins to an extent)
Privileged assets: Assets loaded directly or indirectly by scripts sent to the client. This includes:

	// --- Dependencies ---
	// This simple example relies only on standard library features.
	use std::error::Error;
	use std::fmt;

	// --- Error Handling ---

	/// A simple custom error type for parsing issues.
	#[derive(Debug)]
	struct ParseError {

	const PasswordView = Backbone.View.extend({
	events: {
	'input input': 'updatePassword'
	},

	updatePassword(e) {
	const pwd = e.target.value;
	const reqs = [
	['8+ characters', pwd.length >= 8],
	['12+ characters', pwd.length >= 12],

	const { useState } = React;

	const PasswordStrength = () => {
	const [password, setPassword] = useState('');

	const requirements = [
	{ label: '8+ characters', check: (pwd) => pwd.length >= 8 },
	{ label: '12+ characters', check: (pwd) => pwd.length >= 12 },
	{ label: 'Lowercase letter', check: (pwd) => /[a-z]/.test(pwd) },
	{ label: 'Uppercase letter', check: (pwd) => /[A-Z]/.test(pwd) },

	# /// script
	# dependencies = [ "transformers", "accelerate" ]
	# ///

	# run on 2xH200 rented from primeintellect.ai

	import gc

	import torch
	from transformers import AutoModelForCausalLM, AutoTokenizer, TextStreamer

	type MIU =
	\| M
	\| I
	\| U

	type String = MIU list

	let str (s: String) : string =
	s
	\|> List.map (function