Dan Tocchini IV d4tocchini

In the olden days, HTML was prepared by the server, and JavaScript was little more than a garnish, considered by some to have a soapy taste.

After a fashion, it was decided that sometimes our HTML is best rendered by JavaScript, running in a user's browser. While some would decry this new-found intimacy, the age of interactivity had begun.

But all was not right in the world. Somewhere along the way, we had slipped. Our pages went uncrawled by Bing, time to first meaningful paint grew faster than npm, and it became clear: something must be done.

And so it was decided that the applications first forged for the browser would also run on the server. We would render our HTML using the same logic on the server and the browser, and reap the advantages of both worlds. In a confusing series of events a name for this approach was agreed upon: Server-side rendering. What could go wrong?

In dark rooms, in hushed tones, we speak of colours.

Debug with GDB on macOS 11

The big reason to do this is that LLDB has no ability to "follow-fork-mode child", in other words, a multi-process target that doesn't have a single-process mode (or, a bug that only manifests when in multi-process mode) is going to be difficult or impossible to debug, especially if you have to run the target over and over in order to make the bug manifest. If you have a repeatable bug, no big deal, break on the fork from the parent process and attach to the child in a second lldb instance. Otherwise, read on.

Install GDB

Don't make the mistake of thinking you can just brew install gdb. Currently this is version 10.2 and it's mostly broken, with at least two annoying bugs as of April 29th 2021, but the big one is https://sourceware.org/bugzilla/show_bug.cgi?id=24069

$ xcode-select install  # install the XCode command-line tools

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,

CXXFLAGS="-ffast-math -fdevirtualize-speculatively  -fassociative-math -freciprocal-math -fno-signed-zeros -fno-trapping-math -fipa-pta -mrecip=all -fgcse-sm -fgcse-las -fgcse-after-reload -march=native  -ftree-vectorize -floop-interchange -floop-block -ftree-coalesce-vars -floop-nest-optimize -fgraphite-identity -ftree-loop-ivcanon -fivopts" LDFLAGS="-ffast-math -fdevirtualize-speculatively"

Benchmark

Basic O3 + `-march=native`

rendering time = 91ms

Basic O3 + `-march=native` + `-ffast-math` + `-mrecip=all`

rendering time = 92ms

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

I recently happened upon a very interesting implementation of popen() (different API, same idea) called popen-noshell using clone(2), and so I opened an issue requesting use of vfork(2) or posix_spawn() for portability. It turns out that on Linux there's an important advantage to using clone(2). I think I should capture the things I wrote there in a better place. A gist, a blog, whatever.

This is not a paper. I assume reader familiarity with fork() in particular and Unix in general, though, of course, I link to relevant wiki pages, so if the unfamiliar reader is willing to go down the rabbit hole, they should be able to come ou

iOS, The Future Of macOS, Freedom, Security And Privacy In An Increasingly Hostile Global Environment

This post by a security researcher who prefers to remain anonymous will elucidate concerns about certain problematic decisions Apple has made and caution about future decisions made in the name of “security” while potentially hiding questionable motives. The content of this article represents only the opinion of the researcher. The researcher apologises if any content is seen to be inaccurate, and is open to comments or questions through PGP-encrypted mail.

TL;DR

Install zsh from cygwin
Install oh-my-zsh from https://github.com/robbyrussell/oh-my-zsh . Follow the manual instructions
To make zsh default on ConEmu, create a task with C:\cygwin64\bin\mintty.exe /usr/bin/zsh - . Make it the defaut shell.
To start a zsh shell on demand, add this batch script to your path or start menu or wherever.

start C:\cygwin64\bin\mintty.exe /usr/bin/zsh -

	// npm i express axios && node ./oailogger.js
	const express = require('express');
	const axios = require('axios');
	const bodyParser = require('body-parser');
	const stream = require('stream');
	const { promisify } = require('util');
	const fs = require('fs');
	const logStream = fs.createWriteStream('logs.jsonl', { flags: 'a' });

	const app = express();

	localhost:8080 {
	root ./my-site
	internal .repo
	git {
	repo https://github.com/kaushalmodi/hugo-bare-min-theme.git
	path .repo
	clone_args --depth 1 --recurse-submodules
	pull_args --recurse-submodules
	interval 3600
	then hugo --source ./exampleSite --destination ../..