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Sunny Chan sunnycmf

  • Carousell
  • Hong Kong
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Setup Mac OS X Mountain Lion or Mavericks

Edit: I few months ago I got a new laptop and did the same thing on Mavericks.

I just replaced the hard drive of my mbp and decided to do a clean install of Mountain Lion (10.8.5) since I was still using Snow Leopard (10.6.8).

I kinda regret for not using Boxen to automate the

sunnycmf / System
Created Sep 25, 2019 — forked from vasanthk/System
System Design Cheatsheet
View System

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?
sunnycmf /
Created Apr 18, 2018 — forked from joyrexus/
form-data vs -urlencoded

Nice answer on stackoverflow to the question of when to use one or the other content-types for POSTing data, viz. application/x-www-form-urlencoded and multipart/form-data.

“The moral of the story is, if you have binary (non-alphanumeric) data (or a significantly sized payload) to transmit, use multipart/form-data. Otherwise, use application/x-www-form-urlencoded.”

Matt Bridges' answer in full:

The MIME types you mention are the two Content-Type headers for HTTP POST requests that user-agents (browsers) must support. The purpose of both of those types of requests is to send a list of name/value pairs to the server. Depending on the type and amount of data being transmitted, one of the methods will be more efficient than the other. To understand why, you have to look at what each is doing

View ioslocaleidentifiers.csv
We can make this file beautiful and searchable if this error is corrected: No commas found in this CSV file in line 0.
mr Marathi
bs Bosnian
ee_TG Ewe (Togo)
ms Malay
kam_KE Kamba (Kenya)
mt Maltese
ha Hausa
es_HN Spanish (Honduras)
ml_IN Malayalam (India)
ro_MD Romanian (Moldova)
View gist:9175797
class PassAPI extends Plugin
# Registration
# register a device to receive push notifications for a pass
# POST /v1/devices/<deviceID>/registrations/<typeID>/<serial#>
# Header: Authorization: ApplePass <authenticationToken>
# JSON payload: { "pushToken" : <push token, which the server needs to send push notifications to this device> }
sunnycmf /
Created Mar 13, 2017 — forked from Kartones/
PostgreSQL command line cheatsheet


Magic words:

psql -U postgres

If run with -E flag, it will describe the underlaying queries of the \ commands (cool for learning!).

Most \d commands support additional param of __schema__.name__ and accept wildcards like *.*

sunnycmf / The Technical Interview Cheat
Created Feb 8, 2017 — forked from TSiege/The Technical Interview Cheat
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.
View The Technical Interview Cheat

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

  • Stores data elements based on an sequential, most commonly 0 based, index.
  • Based on tuples from set theory.
sunnycmf /
Created Nov 11, 2016 — forked from jaceklaskowski/
Choosing a deployment tool - ansible vs puppet vs chef vs salt


  • no upfront installation/agents on remote/slave machines - ssh should be enough
  • application components should use third-party software, e.g. HDFS, Spark's cluster, deployed separately
  • configuration templating
  • environment requires/asserts, i.e. we need a JVM in a given version before doing deployment
  • deployment process run from Jenkins


sunnycmf /
Created Aug 11, 2016 — forked from patrickhammond/
Easily setup an Android development environment on a Mac

Here is a high level overview for what you need to do to get most of an Android environment setup and maintained.

Prerequisites (for Homebrew at a minimum, lots of other tools need these too):

  • XCode is installed (via the App Store)
  • XCode command line tools are installed (xcode-select --install will prompt up a dialog)
  • Java

Install Homebrew:

ruby -e "$(curl -fsSL"
sunnycmf /
Created May 9, 2016 — forked from likidu/
Nginx Settings for NodeJS App
# Nginx Reverse Proxy for NodeJS Apps
listen 80;
index index.html index.htm index.php default.html default.htm default.php;
root /home/wwwroot/;
include none.conf;
if ($http_host != "") {