Jan Alonzo jmalonzo

"Other developers are just like us - weird"

"If you ever need to deploy Django, you're good. If you know Capistrano and Unicorn they've got rip-offs of all that stuff."

"I think we should all admit we're horrible coders and move on" "We're all drug addicts - we're fighting methods..."

"It's easy to learn to play the guitar and be able to play Bob Dylan and Weezer and never get better."

"This is basically a talk that was given 30 years ago. We just have to keep giving it every few years because young guys come along and forget it."

How to downgrade homebrew packages (e.g. phantomjs 1.9.2 -> 1.9.1)

$ brew uninstall phantomjs
$ brew versions phantomjs
$ git checkout 2196213 /usr/local/Library/Formula/phantomjs.rb
$ brew install phantomjs

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

Tech Stack

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

	; Copyright (C) 2010 Jan Michael Alonzo. All Rights Reserved.
	; The use and distribution terms for this software are covered by the
	; Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
	; which can be found in the file epl-v10.html at the root of this distribution.
	; By using this software in any fashion, you are agreeing to be bound by
	; the terms of this license.
	; You must not remove this notice, or any other, from this software.

	(defn calc-espp-purchase-tax [fmv nshares]
	"Calculate the share purchase tax for Employee Shares Purchase Plan

	(color-theme-taylor)
	;; we don't have imaxima installed on the Mac
	(if (string-match "linux" system-configuration)
	(require 'imaxima))

	;; Set to the location of your Org files on your local system
	(setq org-directory "~/Dropbox/Emacs/data")
	;; Set to the name of the file where new notes will be stored
	(setq org-mobile-inbox-for-pull "~/Dropbox/Emacs/data/default.org")
	;; Set to <your Dropbox root directory>/MobileOrg.

	<!DOCTYPE html>
	<html>
	<head>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?1.25.0"></script>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.time.js?1.25.0"></script>
	</head>
	<body>
	<script type="text/javascript">

	var format = d3.time.format("%m/%d"),

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2011 Mathieu 'p01' Henri <http://www.p01.org/releases/>

	Everyone is permitted to copy and distribute verbatim or modified
	copies of this license document, and changing it is allowed as long
	as the name is changed.

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

	/**
	* Geocode address using Google Maps
	*
	* @param address the address to geocode
	* @return the geocoded address (possibly approximate)
	*/
	function geocode(address) {
	var response = Maps.newGeocoder().geocode(address);
	var geom = response.results[0].geometry;
	return geom.location.lat + ", " + geom.location.lng;