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Quick copy-paste access (if you know, you know):

<spine page-progression-direction="rtl">

.calibre1 {
  display: flex;
  justify-content: center;
  align-items: center;
 height: 100vh;

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	`${#VARNAME}`
Get a single character	`${VARNAME[index]}`

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

There are always 24 hours in a day.
February is always 28 days long.
Any 24-hour period will always begin and end in the same day (or week, or month).

Upgrade Debian 9 (current WSL) to Debian 12 (bookworm testing)

Note: I do not maintain this gist anymore, but people report that it still works. Please check the comments for any revisions or extra things you should take into consideration.

As of writing, the Debian distro for WSL (Windows Subsystem for Linux) is quite old.

You can get more up-to-date package managers, text-editors and compilers by upgrading WSL to Debian 12 (current testing).

Root required

Use at your own risk, preferably on a fresh installation.

Protección de las credenciales enviadas por el navegador al servidor proxy

Problema

Es sabido que durante el proceso de autenticación en un servidor proxy HTTP las credenciales se envian en texto plano. Lo anterior pudiera convertirse en un problema de seguridad. Esta vulnerabilidad permite a un usuario malicioso capturar fácilmente el par usuario contraseña utilizando un ataque de tipo MitM.

Solución

Una solución viable consiste en configurar el servidor proxy con soporte para SSL, de modo que el tráfico enviado desde el navegador hacia este viaje por un canal seguro. Para esto, el navegador debe ser capaz de comunicarse con el servidor proxy a través del protocolo HTTP sobre SSL/TLS.

CSS units

Recommendations of unit types per media type:

Media	Recommended	Occasional use	Infrequent use	Not recommended
Screen	em, rem, %	px	ch, ex, vw, vh, vmin, vmax	cm, mm, in, pt, pc
Print	em, rem, %	cm, mm, in, pt, pc	ch, ex	px, vw, vh, vmin, vmax

Relative units

	#!/usr/bin/env bash

	# Download VMware Fusion Pro without Bcom account
	#
	# By default, the latest verson will be downloaded, extracted and prepped for install
	# Use '-k' to keep download file compressed, exiting after download
	# Use '-v VERSION' to specify desired version (13.0.0 or higher required)

	KEEP_COMPRESSED=false
	USER_VERSION=""

	import numpy as np
	from math import sqrt

	scaling = False

	# Implements Kabsch algorithm - best fit.
	# Supports scaling (umeyama)
	# Compares well to SA results for the same data.
	# Input:
	# Nominal A Nx3 matrix of points

	// NOTE Compile without fast math flags.

	/*
	This is free and unencumbered software released into the public domain.

	Anyone is free to copy, modify, publish, use, compile, sell, or
	distribute this software, either in source code form or as a compiled
	binary, for any purpose, commercial or non-commercial, and by any
	means.

	# Summary
	A few notes I took to see if I could use MacOS as Hypevirsor in a similar fashion to Linux
	I wanted to see how few addons were needed instead of using Parallels, Virtual Box, VM Fsion etc.
	The idea is to use QEMU, Hypervisor Framework (https://developer.apple.com/documentation/hypervisor) and some custom host networking.

	# Installations
	brew install qemu (For controlling Hypervisor Framework)
	brew install cdrtools (For making cloud init iso's)
	http://tuntaposx.sourceforge.net/download.xhtml (For customer tap based networking)