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@vasanthk
vasanthk / System Design.md
Last active April 22, 2026 05:36
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
// Unity C# Cheat Sheet
// I made these examples for students with prior exerience working with C# and Unity.
// Too much? Try Unity's very good tutorials to get up to speed: https://unity3d.com/learn/tutorials/topics/scripting
@lyquix-owner
lyquix-owner / cleanhtml.php
Last active March 20, 2025 18:39
PHP script to automatically clean dirty HTML. Removes unnecessary attributes (e.g. style, id, dir), replaces deprecated tags with valid ones (e.g. <b> to <strong>), and strips undesirable tags (e.g <font>). We have used this script to safely clean hundreds of blog posts that were littered with inline styling.
<?php
// List of tags to be replaced and their replacement
$replace_tags = [
'i' => 'em',
'b' => 'strong'
];
// List of tags to be stripped. Text and children tags will be preserved.
$remove_tags = [
@hitorilabs
hitorilabs / WINDOWS11.md
Last active February 6, 2026 17:41 — forked from q-hung/WIN10.MD
Install Windows 11 From A Bootable USB (macos)

Personally, I prefer installing operating systems from a USB stick, so here's a tutorial

TL;DR

If you already have some idea of what's going on:

  1. Download the ISO from Microsoft - https://www.microsoft.com/en-ca/software-download/windows11
  2. Erase USB device and format in MS-DOS/FAT32
diskutil eraseDisk MS-DOS "WINDOWS11" MBR /dev/diskX