vasanthk

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?

subfuzion

Install with Homebrew

brew install redis

Set up launchctl to auto start redis

$ ln -sfv /usr/local/opt/redis/*.plist ~/Library/LaunchAgents

/usr/local/opt/redis/ is a symlink to /usr/local/Cellar/redis/x.y.z (e.g., 2.8.7)

CristinaSolana

1. Clone your fork:

git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream

ninehills

necolas

import NextLink from 'next/link';
import React from 'react';
import { Text } from 'react-native-web';

// https://github.com/zeit/next.js#with-link
// Combines the Next.js <Link> with React Native's <Text> component.
// Enables use like this:
//
//    <Link
//      href={href}

adamwiggins

Make it real

Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discuss around concrete examples, not hand-waving abstractions. Don't say you did something, provide a URL that proves it.

Ship it

Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.

Do it with style

xpepermint

1. Build GraphQL server using `express-graphql` package.
2. Configure `schema.js` file.
3. Query for data.

subfuzion

Install with Homebrew

brew install mysql

Set up launchctl to auto start mysql

$ ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents

/usr/local/opt/mysql/ is a symlink to /usr/local/Cellar/mysql/x.y.z (e.g., 5.6.16)

EyMaddis

export type DeviceSize = 'mobile' | 'small' | 'medium' | 'large'

export const deviceSize: { [key in DeviceSize]: [number, number] } = {
  mobile: [0, 575],
  small: [576, 767],
  medium: [768, 991],
  large: [992, 999999999],
}

victorferreira

//: Back to [The C API](@previous)

import SQLite
import Foundation
import PlaygroundSupport

destroyPart2Database()

//: # Making it Swift