Fernando Serboncini fserb

How to setup a practically free CDN using Backblaze B2 and Cloudflare

⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,

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

	#!/usr/bin/env python3

	import subprocess, sys, os, tempfile, re

	"""
	How to use this:
	1. create a git repo
	2. commit something to it
	3. run ./chainy.py <number of zeroes>

	// Given a Vec2 vector class...
	function hitPolygonAxis(points: Array<Vec2>, ret: Array<Float>) {
	for (i in 0...points.length) {
	var a = points[i];
	var b = points[(i+1) % points.length];
	var v = Vec2.make(b.x - a.x, b.y - a.y).normal();
	// we should be able to only use half circunference.
	ret.push(v.angle());
	}
	}