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System Design Cheatsheet

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

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?

Linux kernel version must be greater than 4.19

to check kernel version, run uname -r. sample output:
```
5.4.0-132-generic
```
Have the CONFIG_TCP_CONG_BBR and CONFIG_NET_SCH_FQ options compiled and added to the kernel.

Name	Acronym	Type	Lead^/Lag*	tv	mt5	tt	tc2	mio	mv	pc	js	js2	py	py2	mat
Absolute Breadth Index		Momentum		❌	❌	❌	❌	✅	✅	❌	❌	❌

	javascript: Promise.all([import('https://unpkg.com/turndown@6.0.0?module'), import('https://unpkg.com/@tehshrike/readability@0.2.0'), ]).then(async ([{
	default: Turndown
	}, {
	default: Readability
	}]) => {

	/* Optional vault name */
	const vault = "";

	/* Optional folder name such as "Clippings/" */

	# CLI
	sudo apt update -y
	sudo apt install -y \
	git curl \
	docker.io docker-buildx \
	build-essential pkg-config autoconf bison rustc cargo clang \
	libssl-dev libreadline-dev zlib1g-dev libyaml-dev libreadline-dev libncurses5-dev libffi-dev libgdbm-dev libjemalloc2 \
	libvips imagemagick libmagickwand-dev mupdf mupdf-tools \
	redis-tools sqlite3 libsqlite3-0 libmysqlclient-dev \
	rbenv apache2-utils

	using UnityEngine;

	public static class VectorExtensions
	{
	/// <summary>
	/// Returns a modified version of the vector with one or more components modified
	/// </summary>
	/// <param name="x">X component to modify</param>
	/// <param name="y">Y component to modify</param>
	/// <returns>A modified version of the vector with the passed component configurations</returns>

	#!/bin/bash
	### BEGIN INIT INFO
	# Provides: BitCoinMining
	# Required-Start: $local_fs $network
	# Required-Stop: $local_fs $network
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# X-Interactive: false
	# Short-Description: Start/stop BitCoing Mining poclbm-mod
	### END INIT INFO

	// example courtesy of http://adilatwork.blogspot.com/2012/11/android-dialogfragment-enter-and-exit.html
	// file location: src/main/java/com/example/

	@Override
	public void onStart() {
	super.onStart();

	// safety check
	if (getDialog() == null) {
	return;