Si Nguyen mrsinguyen

Oh my zsh Setup (Fast + Minimal)

Install Zsh

Ubuntu

sudo apt update
sudo apt install zsh curl git

Notes on Martin Kleppmann's excellent Designing Data-Intensive Applications.

Chapter 1: Reliable, Scalable, and Maintainable Applications

Data Systems
- Dimensions to consider when thinking about data systems: access patterns, performance characteristics, implementations.
- Modern data systems often blur the lines between databases, caches, streams, etc.
Reliability
- Systems should perform the expected function at a given level of performance, and be tolerant to faults and user mistakes
Fault: One component of a system deviating from its spec. Prefer tolerating faults over preventing them (except for things like security issues). Faults stem from hardware failures, software failures, and human error (in a study, config errors caused most outages).

Stevey's Google Platforms Rant

I was at Amazon for about six and a half years, and now I've been at Google for that long. One thing that struck me immediately about the two companies -- an impression that has been reinforced almost daily -- is that Amazon does everything wrong, and Google does everything right. Sure, it's a sweeping generalization, but a surprisingly accurate one. It's pretty crazy. There are probably a hundred or even two hundred different ways you can compare the two companies, and Google is superior in all but three of them, if I recall correctly. I actually did a spreadsheet at one point but Legal wouldn't let me show it to anyone, even though recruiting loved it.

I mean, just to give you a very brief taste: Amazon's recruiting process is fundamentally flawed by having teams hire for themselves, so their hiring bar is incredibly inconsistent across teams, despite various efforts they've made to level it out. And their operations are a mess; they don't real

imgproxy vs alternatives benchmark

Setup

c5.xlarge AWS instance: 4 CPUs, 8 GB RAM
Ubuntu 18.04
Go 1.12
Python 2.7
Vips 8.7.4

FWIW: I didn't produce the content presented here (the outline from Edmond Lau's book). I've just copy-pasted it from somewhere over the Internet, but I cannot remember what exactly the original source is. I was also not able to find the author's name, so I cannot give him/her the proper credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...

	version: "3.7"

	services:
	# simple
	mongo:
	image: mongo
	command: mongod --replSet rs0 --bind_ip_all
	healthcheck:
	test: \|
	mongosh --eval "try { rs.status().ok } catch (e) { rs.initiate({ _id: 'rs0', members: [{ _id: 0, host: 'localhost:27017' }] }).ok }"

	echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
	. ~/.bashrc
	mkdir ~/local
	mkdir ~/node-latest-install
	cd ~/node-latest-install
	curl http://nodejs.org/dist/node-latest.tar.gz \| tar xz --strip-components=1
	./configure --prefix=~/local
	make install # ok, fine, this step probably takes more than 30 seconds...
	curl https://www.npmjs.org/install.sh \| sh

	<?php
	/**
	* UUID class
	*
	* The following class generates VALID RFC 4122 COMPLIANT
	* Universally Unique IDentifiers (UUID) version 3, 4 and 5.
	*
	* UUIDs generated validates using OSSP UUID Tool, and output
	* for named-based UUIDs are exactly the same. This is a pure
	* PHP implementation.

	#region Default Package Properties

	/// <summary>
	/// See <see cref="IntegrationInterface.DefaultShowFinishButton"/> for a full description..
	/// </summary>
	/// <param name="learningStandard">The learning standard that governs delivery of the package</param>
	/// <param name="singleSco">Will be true if there is only one SCO in the package (because this structure usually results in a different default setup)</param>
	/// <param name="externalConfig">External configuration information.</param>
	/// <returns>This implementation returns <see cref="YesNoValue.NO"/> for a single SCO, otherwise it returns <see cref="YesNoValue.YES"/>.</returns>
	public override YesNo DefaultShowFinishButton(LearningStandard learningStandard, bool singleSco, ExternalConfiguration externalConfig)