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Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

Follow standard conventions.
Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
Boy scout rule. Leave the campground cleaner than you found it.
Always find root cause. Always look for the root cause of a problem.

Design rules

Instalación y configuracion de Jest + React Testing Library

En proyectos de React + Vite

Instalaciones:

yarn add --dev jest babel-jest @babel/preset-env @babel/preset-react 
yarn add --dev @testing-library/react @types/jest jest-environment-jsdom

Opcional: Si usamos Fetch API en el proyecto:

Combining two git repositories

Use case: You have repository A with remote location rA, and repository B (which may or may not have remote location rB). You want to do one of two things:

preserve all commits of both repositories, but replace everything from A with the contents of B, and use rA as your remote location
actually combine the two repositories, as if they are two branches that you want to merge, using rA as the remote location

NB: Check out git subtree/git submodule and this Stack Overflow question before going through the steps below. This gist is just a record of how I solved this problem on my own one day.

Before starting, make sure your local and remote repositories are up-to-date with all changes you need. The following steps use the general idea of changing the remote origin and renaming the local master branch of one of the repos in order to combine the two master branches.

Anti-hype LLM reading list

Goals: Add links that are reasonable and good explanations of how stuff works. No hype and no vendor content if possible. Practical first-hand accounts of models in prod eagerly sought.

Foundational Concepts

Pre-Transformer Models

security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict

Common Case Transformation Snippets

Visual Studio Code allows Snippets to perform ✨Variable Transforms✨ using Regex.

Here are some common case transformations that you can apply to your snippets. In these examples, I'm using $TM_FILENAME_BASE, but the same transformations should apply to any of the Snippet Variables.

snippets-from-delimited.json can convert filenames like my-file-name, my_file_name, my file name. If your filename is delimited by a dash, underscore, or space, these should work.

snippets-from-mixed-case.json can convert filenames like myFileName and MyFileName. If your filename is in camel or Pascal case, these should work.

	//------------------------------------------------------------------------
	// The SwiftUI Lab: Advanced SwiftUI Animations
	// https://swiftui-lab.com/swiftui-animations-part1 (Animating Paths)
	// https://swiftui-lab.com/swiftui-animations-part2 (GeometryEffect)
	// https://swiftui-lab.com/swiftui-animations-part3 (AnimatableModifier)
	//------------------------------------------------------------------------
	import SwiftUI

	struct ContentView: View {

	import SwiftUI

	struct KeyframeValues {
	var scale = 1.0
	var horizontalStretch = 1.0
	var verticalStretch = 1.0
	var translation = 0.0
	var rotation = Angle.zero
	}

	import os
	import shutil

	"""
	Steps to retrieve the IPA file from the Configurator app:

	1. Install Apple Configurator from the Mac App Store and sign in
	2. Connect your iOS device to your Mac
	3. Select "Add > Apps..." and search for the app you want to install, click "Add"
	4. The newer Apple Configurator deletes the IPA after installing it, so you'll need to use this tool to grab it

	Description: This template deploys a VPC, with
	A pair of public and private subnets spread across two Availability Zones.
	It deploys an internet gateway, with a default route on the public subnets.
	It deploys an Ec2 with WordPress and EC2 MySQL RDS
	It Needs The KeyPairs
	LONG Version - With Multi AZ and RR - It deploy in almost 30 min
	LITE Version - Whitout Multi AZ and RR - It deploy in only 3 min max

	Parameters: